A prefabricated room module, building and method of construction

Abstract

The application provides a prefabricated room module, a building and a construction method, which comprises: a shear wall body and a roof body; the shear wall body is provided with a wall cavity for cast-in-situ concrete, and a shear wall is formed after concrete is cast in the wall cavity; the roof body is provided with a pouring area for cast-in-situ concrete, and a roof is formed after concrete is cast in the pouring area; and the shear wall body is fixedly connected with the roof body. Through the prefabricated room module, the building and the construction method provided by the embodiment of the application, the prefabricated parts of the shear wall and the roof are extracted out to be assembled in a factory by using a modular method, a standard module self-bearing system is formed, and therefore only hoisting and concrete pouring engineering is needed for the module at the construction site, and all or most of hoisting, scaffold and construction support erection work and a large amount of welding and bolt connection work of small components can be cancelled.

Description

Technical Field

[0001] This invention relates to the field of building technology, and more specifically, to a prefabricated room module, a building, and a construction method. Background Technology

[0002] In existing technologies, modular construction is commonly used in steel structure or concrete building systems. Specifically, there are two main approaches: using steel columns and beams to form a cubic steel frame as a building module, or using precast concrete walls and floor slabs to form a cubic space as a building module, and then constructing the building by assembling these modules.

[0003] However, steel structure systems are not suitable for building high-rise buildings, and they are less accepted by consumers when used in residential buildings. In addition, the steel frame itself is used as a load-bearing structure, which requires a large amount of steel. Concrete systems, on the other hand, are more inconvenient to transport and hoist due to the large weight of concrete itself, and they also severely limit the size of building modules. Summary of the Invention

[0004] To address the aforementioned problems, the present invention aims to provide a prefabricated room module, a building, and a construction method.

[0005] In a first aspect, embodiments of the present invention provide a prefabricated room module, comprising: a shear wall body and a roof slab body; the shear wall body having a wall cavity for cast-in-place concrete, wherein a shear wall is formed after concrete is poured into the wall cavity, and the geometry of the shear wall is defined by the shear wall body; the roof slab body having a pouring area for cast-in-place concrete, wherein a roof slab is formed after concrete is poured into the pouring area, and the geometry of the roof slab is defined by the roof slab body; the shear wall body and the roof slab body are fixedly connected.

[0006] Optionally, the shear wall body includes at least: an inner membrane shell and an outer membrane shell arranged opposite to and parallel to each other; the cavity between the inner membrane shell and the outer membrane shell is the wall cavity.

[0007] Optionally, the height of the outer membrane shell is higher than the height of the inner membrane shell; the top plate body is fixedly connected to the inner membrane shell, so that any of the wall cavities is connected to the grouting area to form a connected area. After the connected area is filled with concrete, any of the shear walls is connected to the top plate as a whole.

[0008] Optionally, the outer membrane shell and the inner membrane shell are at the same height; the bottom surface of the top plate body is set at a height lower than the height of the inner membrane shell, and the portion of the inner membrane shell above the bottom surface of the top plate body forms the grouting area with the bottom surface of the top plate body.

[0009] Optionally, the top plate body includes: a bottom formwork steel plate and a steel truss; the steel truss is welded to the upper surface of the bottom formwork steel plate, and the bottom formwork steel plate is fixedly connected to the inner membrane shell.

[0010] Optionally, if the height of the outer membrane shell is higher than the height of the inner membrane shell, the bottom mold steel plate overlaps the inner membrane shell.

[0011] Optionally, if the outer membrane shell and the inner membrane shell are at the same height, the bottom mold steel plate is connected to the side wall of the inner membrane shell.

[0012] Optionally, the shear wall body further includes: a shear wall steel frame; the shear wall steel frame is fixedly connected in the cavity of the wall.

[0013] Optionally, the shear wall body further includes: a first connector; one side of the shear wall steel frame is fixedly connected to the inner membrane shell through the first connector, and the other side of the shear wall steel frame is fixedly connected to the outer membrane shell through the first connector.

[0014] Optionally, the shear wall steel frame includes: a reinforcing cage and steel structural edge members that are vertically fixed to both ends of the reinforcing cage along its length.

[0015] Optionally, the reinforcing cage includes: tie bars and two layers of opposite and parallel reinforcing mesh; the tie bars are disposed between the two layers of reinforcing mesh for tying the reinforcing mesh on both sides; the two ends of the reinforcing mesh are fixedly connected to the edge members of the steel structure.

[0016] Optionally, the reinforcing mesh includes: horizontal reinforcing bars and vertical joists; a plurality of parallel horizontal reinforcing bars and a plurality of parallel vertical joists are fixedly connected to form the reinforcing mesh.

[0017] Optionally, the steel structure edge member includes: a steel column, an inner core column, and a sleeve assembly; the steel column includes a bottom end and a top end, the sleeve assembly is fixedly connected to the bottom end of the steel column, and is used to sleeve the inner core column of the adjacent prefabricated room module on the lower floor; the inner core column is fixedly connected to the top end of the steel column, and the inner core column protrudes from the top end of the steel column, and is used to insert into the sleeve assembly of the adjacent prefabricated room module on the upper floor to form a nest.

[0018] Optionally, the sleeve assembly includes: a steel column body with multiple welding grooves on its sidewalls, and an anti-pull-out connection assembly; the anti-pull-out connection assembly is fitted onto the inner sidewall of the steel column body, and the anti-pull-out connection assembly and the steel column body are welded and fixed at the welding groove positions.

[0019] Optionally, one side of the pull-out resistant connecting assembly has a concave-convex shape to form a plurality of pull-out resistant structures extending along a preset direction. The side of the pull-out resistant connecting assembly opposite to the pull-out resistant structure is attached to the inner wall of the steel column body. The preset direction has an angle with the axial direction of the steel column body.

[0020] Optionally, the pull-out resistant connection assembly is a hollow columnar structure, including multiple crossbeams extending along a preset direction; the welding groove corresponds to at least a portion of the crossbeams, and the preset direction has an angle with the axial direction of the steel column body.

[0021] Optionally, the outer wall of the inner core column is provided with a protruding ridge extending in a preset direction, the preset direction having an angle with the axial direction of the steel column body.

[0022] Optionally, the lower ends of the opposite sidewalls of the inner core column are provided with first insertion slots, and the upper ends of the opposite sidewalls of the steel column are provided with second insertion slots; the steel structure edge component further includes: an insertion plate; the insertion plate is used to insert into the first insertion slot and the second insertion slot, so that the inner core column and the steel column are fixedly connected.

[0023] Optionally, the inner core column has a positioning cone with its tip pointing upwards at the top, and the inner wall of the sleeve assembly is provided with a positioning cavity that is complementary in shape to the positioning cone and is used to accommodate the positioning cone.

[0024] Optionally, limiting steel bars are inserted into the outer wall surface of the apex corners of the inner core column, which are diagonally opposite each other, and the limiting steel bars are arranged along the extension direction of the diagonal line in the cross-section of the inner core column.

[0025] Optionally, the prefabricated room module further includes: a connecting beam body, the connecting beam body having a connecting beam cavity for cast-in-place concrete, the connecting beam being formed after concrete is poured into the connecting beam cavity, the geometry of the connecting beam being defined by the connecting beam body.

[0026] Optionally, the coupling beam body includes: a coupling beam membrane shell, a coupling beam reinforcement cage, a coupling beam bottom steel plate, and a coupling beam vertical joists; the two outer sides of the coupling beam reinforcement cage are fixedly connected to the coupling beam vertical joists, and the coupling beam reinforcement cage is fixedly connected to the inside of the coupling beam membrane shell through the coupling beam vertical joists, the inside of the coupling beam membrane shell being the coupling beam cavity; both ends of the coupling beam reinforcement cage in the length direction and both ends of the coupling beam bottom steel plate in the length direction are respectively fixedly connected to the shear wall body connected to both ends of the coupling beam body, and the coupling beam bottom steel plate is fixedly connected to the bottom of the coupling beam vertical joists.

[0027] Optionally, the connecting beam body further includes: a second connector; the connecting beam membrane shell is fixedly connected to the vertical keel of the connecting beam through the second connector.

[0028] Optionally, the first or second connector may include a self-tapping screw, a bolt, or a rivet.

[0029] Optionally, the prefabricated room module further includes: a base plate, the edge of which is fixedly connected to the lower end of the shear wall body, and the base plate is disposed opposite to the top plate body.

[0030] Optionally, the base plate includes: a steel frame and / or a concrete base plate.

[0031] Optionally, the steel frame includes steel frame beams and steel purlins, which are fixedly connected to form a planar steel frame.

[0032] Secondly, embodiments of the present invention also provide a modular building, comprising: at least one prefabricated room module as described above, and concrete poured on-site within the prefabricated room module and / or poured on-site between adjacent prefabricated room modules.

[0033] Optionally, the connection between any of the prefabricated room modules and an adjacent prefabricated room module on the same floor is a partial shear wall body, and the partial shear wall bodies at the connection between two adjacent prefabricated room modules form a complete shear wall body.

[0034] Optionally, the partial shear wall body of any one of two adjacent prefabricated room modules on the same floor includes a single-sided membrane shell, and the partial shear wall body of the other prefabricated room module includes a steel cage to be spliced ​​and another single-sided membrane shell fixedly connected to the steel cage to be spliced.

[0035] Thirdly, embodiments of the present invention also provide another modular building, comprising: at least two prefabricated room modules as described above, wherein each prefabricated room module is connected to an adjacent prefabricated room module located directly below or above it via steel structural edge members.

[0036] Optionally, the sleeve assembly of the steel structure edge member of the prefabricated room module is sleeved on the inner core column of the steel structure edge member of the adjacent prefabricated room module directly below it, and the sleeve assembly of the steel structure edge member of the prefabricated room module abuts against the top of the steel column of the steel structure edge member of the adjacent prefabricated room module directly below it.

[0037] Optionally, vertical connecting steel bars are provided inside the docking area of ​​the steel structure edge members connecting two adjacent prefabricated room modules. After concrete is poured inside the docking area, the two adjacent prefabricated room modules are connected as one unit.

[0038] Fourthly, embodiments of the present invention also provide a construction method for a modular building as described in any of the above, comprising: placing all prefabricated room modules in place by hoisting, and gradually forming the modular building by casting concrete during and after the hoisting process.

[0039] Optionally, all prefabricated room modules are placed in position by hoisting, and during and after hoisting, the prefabricated room modules are gradually formed into the modular building by pouring concrete in place. This includes: constructing the prefabricated room modules floor by floor from bottom to top to build the modular building; wherein, the construction of the prefabricated room modules on each floor includes: placing the prefabricated room modules to be constructed in position using hoisting equipment; pouring concrete on the complete shear wall body of the placed prefabricated room modules to form shear walls; after the shear wall bodies of all the prefabricated room modules in the floor have formed shear walls by pouring concrete, pouring concrete on the top slab body of all the prefabricated room modules in the floor to form the top slab of that floor.

[0040] Optionally, pouring concrete into the complete shear wall body of the placed prefabricated room module to form a shear wall includes: pouring concrete into the complete shear wall body of the prefabricated room module after each prefabricated room module is hoisted and placed; when the partial shear wall bodies at the connection of two horizontally adjacent prefabricated room modules are fixedly connected to form a complete shear wall body, pouring concrete into the complete shear wall body formed at the connection; or, hoisting and placing all the prefabricated room modules on the same floor; fixing the partial shear wall bodies at the connection of horizontally adjacent prefabricated room modules to form a complete shear wall body; and pouring concrete into all the complete shear wall bodies on the floor.

[0041] In the solution provided by the first aspect of the present invention, the prefabricated room modules provided by the present invention extract the prefabricated parts of the shear wall and the roof slab using a modular approach, and assemble them in the factory to form a standard modular self-stressing system, i.e., the prefabricated room module. Therefore, on the construction site, only the module hoisting and concrete pouring are required, eliminating the need for hoisting of all or most small components and the erection of scaffolding and construction supports. Furthermore, since the prefabricated room modules have the shear wall body and roof slab body prefabricated in the factory, the on-site construction work of structural welding and bolting of the shear wall body is reduced. Moreover, since the shear wall body can define the geometry of the shear wall, the present invention eliminates the need for on-site concrete formwork erection and reinforcement. Binding and welding work; In addition, the prefabricated room modules provided in this embodiment of the invention, compared with existing steel modular technology, can reduce steel consumption and save costs because the combined structure is the main load-bearing structure after the concrete is poured. Compared with the building modules of the concrete system, the prefabricated room modules provided in this embodiment of the invention are lighter in size, which is more conducive to hoisting and transportation. Furthermore, the prefabricated room modules can complete the manufacturing of most of the structure (shear wall body and roof slab body) in the factory, which greatly improves the degree of mechanization in the factory and on site, thereby significantly reducing the number of construction personnel required on the construction site, reducing the difficulty of on-site construction, improving the quality of building products, reducing construction site waste, maximizing green construction, and reducing resource waste and environmental pollution.

[0042] In the solution provided by the second aspect of the present invention, since the prefabricated room modules are manufactured in a factory, the quality of the constructed modular building is well guaranteed, and the constructed modular building is more standardized, making it more suitable for standardized building use scenarios such as dormitories and hotels. Furthermore, since the modular building provided by the present invention is a steel-concrete composite structure, it can fully utilize the advantages of high tensile strength and good plasticity of steel and good compressive strength of concrete, compensating for their respective shortcomings. It not only has high load-bearing capacity and stiffness, but also good seismic performance, fire resistance, and corrosion resistance. Compared to steel modular buildings, the modular building provided by the present invention primarily uses a composite structure for load-bearing, which can further reduce steel consumption and save costs.

[0043] In the solution provided by the third aspect of the present invention, the upper and lower prefabricated room modules are connected by steel structure edge members. Based on the special setting structure at the top and bottom of the steel structure edge members, such as the inner core column and the sleeve component, the pull-out resistance between the two upper and lower connected steel structure edge members is improved after the concrete is poured, which can better fix the two adjacent prefabricated room modules.

[0044] In the solution provided by the fourth aspect of the present invention, the prefabricated room modules processed in the factory are transported to the construction site by hoisting and placed in position. During the hoisting process, concrete is poured into the wall cavities and pouring areas of the placed prefabricated room modules. When multiple prefabricated room modules are spliced ​​together, after the prefabricated room modules to be spliced ​​are hoisted, concrete is poured into the splicing positions between adjacent prefabricated room modules, thereby gradually obtaining a modular building. This construction method is advantageous because the prefabricated room modules being hoisted and transported are lightweight. Furthermore, since this construction method is implemented for prefabricated room modules, only the hoisting and concrete pouring of the prefabricated room modules are required on the construction site. This eliminates the need for hoisting of all or most small components, scaffolding and construction support erection, and the need for on-site concrete formwork erection, rebar tying and welding. This significantly reduces the number of construction personnel required on the construction site, while reducing on-site construction difficulty and improving construction speed and efficiency.

[0045] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0046] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 A schematic diagram of a prefabricated room module provided in an embodiment of the present invention is shown;

[0048] Figure 2 A partially enlarged schematic diagram of the prefabricated room module provided in an embodiment of the present invention is shown;

[0049] Figure 3 The diagram shows a plan view of the prefabricated room module provided in an embodiment of the present invention, in which the height of the outer membrane shell of the shear wall body is higher than the height of the inner membrane shell;

[0050] Figure 4 This is a planar schematic diagram showing that the outer membrane shell of the shear wall body has the same height as the inner membrane shell in the prefabricated room module provided in the embodiment of the present invention;

[0051] Figure 5 This invention illustrates a schematic diagram of the specific structure of the top plate body in the prefabricated room module provided in an embodiment of the invention.

[0052] Figure 6 This diagram shows a partially enlarged schematic of the shear wall body in the prefabricated room module provided in an embodiment of the present invention.

[0053] Figure 7 A schematic diagram of the steel structure edge members in the prefabricated room module provided in an embodiment of the present invention is shown;

[0054] Figure 8 A schematic diagram of the sleeved components in the prefabricated room module provided in an embodiment of the present invention is shown;

[0055] Figure 9 This diagram illustrates a first structure of the pull-out resistant connection component in the prefabricated room module provided in an embodiment of the present invention.

[0056] Figure 10 This diagram illustrates a second structure of the pull-out resistant connection component in the prefabricated room module provided in an embodiment of the present invention.

[0057] Figure 11 This diagram illustrates a third structure of the pull-out resistant connection component in the prefabricated room module provided in an embodiment of the present invention.

[0058] Figure 12 This diagram illustrates a combination structure of another type of nesting component in the prefabricated room module provided in an embodiment of the present invention.

[0059] Figure 13 An exploded view of another type of nesting component in the prefabricated room module provided in an embodiment of the present invention is shown.

[0060] Figure 14 This diagram illustrates a fourth structure of the pull-out resistant connection component in the prefabricated room module provided in this embodiment of the invention.

[0061] Figure 15 A cross-sectional view of the nesting component in the prefabricated room module provided in an embodiment of the present invention is shown;

[0062] Figure 16 A schematic diagram of a fifth structure of the pull-out resistant connection component in the prefabricated room module provided in an embodiment of the present invention is shown;

[0063] Figure 17 A schematic diagram of another steel structure edge member in the prefabricated room module provided in an embodiment of the present invention is shown;

[0064] Figure 18 A schematic diagram of an inner core column in a prefabricated room module provided in an embodiment of the present invention is shown.

[0065] Figure 19This diagram shows a steel column in a prefabricated room module provided in an embodiment of the present invention;

[0066] Figure 20 This diagram illustrates an insertion of an inner core column into the top of a steel column in a prefabricated room module provided by an embodiment of the present invention.

[0067] Figure 21 A schematic diagram of an inner core column with a positioning cone in a prefabricated room module provided in an embodiment of the present invention is shown.

[0068] Figure 22 A cross-sectional view of a sleeve assembly with a positioning cavity in a prefabricated room module provided in an embodiment of the present invention is shown.

[0069] Figure 23 A top view of an inner core column with limiting steel bars in a prefabricated room module provided in an embodiment of the present invention is shown.

[0070] Figure 24 This image shows a partially enlarged top view of the connecting beam body in the prefabricated room module provided in an embodiment of the present invention;

[0071] Figure 25 This diagram shows a partially enlarged view of the base plate in the prefabricated room module provided in an embodiment of the present invention.

[0072] Figure 26 A schematic diagram of a modular building provided by an embodiment of the present invention is shown;

[0073] Figure 27 This diagram shows a partially enlarged view of two horizontally adjacent prefabricated room modules before assembly in a modular building provided by an embodiment of the present invention.

[0074] Figure 28 This diagram shows a partially enlarged view of two horizontally adjacent prefabricated room modules assembled in a modular building provided by an embodiment of the present invention.

[0075] Figure 29 This diagram shows a schematic of the steel structure edge members connecting two adjacent prefabricated room modules in a modular building provided by an embodiment of the present invention after splicing.

[0076] Figure 30 This shows a cross-sectional view of the steel structure edge members connecting two adjacent prefabricated room modules in the modular building provided by an embodiment of the present invention after splicing.

[0077] Figure 31 A flowchart illustrating a construction method for a modular building provided by an embodiment of the present invention is shown.

[0078] icon:

[0079] 1-Shear wall body, 2-Top slab body, 3-Connecting beam body, 4-Bottom slab, 10-Wall cavity, 11-Inner membrane shell, 12-Outer membrane shell, 13-Shear wall steel frame, 20-Pouring zone, 21-Bottom formwork steel plate, 22-Reinforcing steel truss, 30-Connecting beam cavity, 31-Connecting beam membrane shell, 32-Connecting beam reinforcing cage, 33-Connecting beam bottom steel plate, 34-Connecting beam vertical joists, 41-Steel frame, 42-Bottom slab concrete, 131-Reinforcing cage, 132-Steel structure edge member, 411-Steel frame beam, 412-Steel purlin, 500-Precast room module, 600-Vertical connecting reinforcement, 1311-Tie bar, 1312-Reinforcing mesh, 132 1-Steel column, 1322-Inner core column, 1323-Casting component, 001-Steel column body, 002-Welding groove, 003-Pull-out connection component, 004-Crossbeam, 005-Protruding ridge, 006-First insertion groove, 007-Second insertion groove, 008-Positioning cone, 009-Positioning cavity, 010-Steel bar, 011-Steel plate, 012-Protruding ridge, 013-Longitudinal beam, 014-Vertical beam, 015-Through groove, 016-Limiting reinforcement bar, X-Preset direction, Y-Axial direction, P-Upper opening of wall cavity, L-Reinforcing steel cage to be spliced, M1-Single-sided membrane shell, M2-Other single-sided membrane shell, T-Concrete, Z-Steel structural component. Detailed Implementation

[0080] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0081] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0082] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0083] This invention provides a prefabricated room module, see [link / reference]. Figure 1 As shown, the prefabricated room module includes: a shear wall body 1 and a roof slab body 2; the shear wall body 1 has a wall cavity 10 for cast-in-place concrete, and a shear wall is formed after concrete is poured into the wall cavity 10, the geometry of which is defined by the shear wall body 1; the roof slab body 2 has a pouring area 20 for cast-in-place concrete, and a roof slab is formed after concrete is poured into the pouring area 20, the geometry of which is defined by the roof slab body 2; the shear wall body 1 and the roof slab body 2 are fixedly connected.

[0084] This invention relates to a modular building system, requiring prefabricated building modules to be manufactured in a factory beforehand. These prefabricated modules are then transported to the construction site for on-site casting to form the final building structure. In this invention, the prefabricated components of the building modules are referred to as prefabricated room modules. These prefabricated room modules include a shear wall body 1 and a roof slab body 2, as shown below. Figure 1 As shown, the upper end of the shear wall body 1 is fixedly connected to one side edge of the top plate body 2 to form a self-stressed system. For example, the shear wall body 1 and the top plate body 2 can be fixedly connected by welding.

[0085] The shear wall body 1 is the prefabricated portion of the shear wall in the final building structure formed on the construction site. The specific geometry of the final shear wall is directly defined by this shear wall body 1. In other words, the shear wall body 1 is the shear wall before concrete is poured. The shape of the shear wall formed after concrete is poured into the shear wall body 1 is consistent with the original shape of the shear wall body 1. For example, if the shape of the shear wall body 1 is rectangular, the shape of the shear wall after concrete pouring is also rectangular. Specifically, the shear wall body 1 includes a wall cavity 10, which is used to accommodate the concrete poured into the shear wall body 1 on the construction site, thus forming the shear wall. The shear wall body 1 can be one-sided or multi-sided. For example, a prefabricated room module can contain four shear wall bodies 1, which can enclose a module with closed sides. Alternatively, a prefabricated room module can contain only three shear wall bodies 1, which can form a module with one open side.

[0086] Accordingly, the roof slab body 2 is the prefabricated part of the roof slab in the final building structure formed on the construction site. For example, the roof slab body 2 can be a prefabricated floor slab with concrete to be poured, specifically a prefabricated concrete composite floor slab, a prefabricated prestressed concrete composite floor slab, a prefabricated prestressed ribbed concrete composite floor slab, a prestressed concrete steel truss composite floor slab, etc. Furthermore, the specific geometry of the final roof slab is directly defined by the roof slab body 2. That is, the roof slab body 2 is the roof slab before concrete is poured, and the specific shape of the roof slab formed after the concrete is poured into the roof slab body 2 is consistent with the original specific shape of the roof slab body 2. For example, if the shape of the roof slab body 2 is rectangular, the shape of the final roof slab after the concrete is poured is also rectangular. Specifically, the roof slab body 2 has a pouring area 20, which is used to accommodate the concrete poured into the roof slab body 2 on the construction site, so that the roof slab body 2 forms the roof slab.

[0087] The prefabricated room modules provided in this invention employ modular methods to extract the prefabricated portions of the shear wall and roof slab, assembling them in the factory to form a standard modular self-supporting system, i.e., the prefabricated room module. This eliminates the need for on-site hoisting and concrete pouring of the modules, thus reducing the need for hoisting of small components and erecting scaffolding and construction supports. Furthermore, since the shear wall body 1 and roof slab body 2 are prefabricated in the factory, on-site welding and bolting of the shear wall body 1 are reduced. Moreover, because the shear wall body 1 defines the geometry of the shear wall, this invention eliminates the need for on-site concrete formwork erection, rebar tying, and welding. Furthermore, the prefabricated room modules provided in this embodiment of the invention, compared to existing steel modular technology, reduce steel consumption and save costs because the combined structure is the main load-bearing component after concrete pouring. Compared to concrete building modules, the prefabricated room modules provided in this embodiment of the invention are lighter, making them easier to hoist and transport. Moreover, the prefabricated room modules can manufacture most of the structure (shear wall body 1 and roof slab body 2) in the factory, significantly increasing the level of mechanization in the factory and on-site, thereby greatly reducing the number of construction workers required on-site, reducing on-site construction difficulty, improving the quality of building products, reducing construction site waste, maximizing green construction, and reducing resource waste and environmental pollution.

[0088] Optionally, see Figure 2 As shown, the shear wall body 1 includes at least: an inner membrane shell 11 and an outer membrane shell 12 arranged opposite to and parallel to each other; the cavity between the inner membrane shell 11 and the outer membrane shell 12 is the wall cavity 10.

[0089] In this embodiment of the invention, when the shear wall formed by the pouring of concrete into the shear wall body 1 is the exterior wall of the building, the inner membrane shell 11 of the shear wall body 1 is located on the side of the shear wall facing the interior, and the outer membrane shell 12 of the shear wall body 1 is located on the side of the shear wall facing the exterior. The inner membrane shell 11 and the outer membrane shell 12 are opposite to each other and parallel to each other. The cavity between the two is the wall cavity 10 of the shear wall body 1. That is to say, the concrete poured into the shear wall body 1 at the construction site will be poured between the inner membrane shell 11 and the outer membrane shell 12 of the shear wall body 1.

[0090] The inner membrane shell 11 and outer membrane shell 12 included in the shear wall body 1 can serve as wall side panels during the module production and hoisting stages and formwork during the construction stage. This allows the prefabricated room modules provided by the embodiments of the present invention to improve the rigidity of the modules during the production and transportation stages, and to eliminate the need for on-site shear wall reinforcement binding and formwork erection, thus saving construction steps and personnel.

[0091] Optionally, see Figure 3 As shown, the height of the outer membrane shell 12 is higher than the height of the inner membrane shell 11; the top plate body 2 is fixedly connected to the inner membrane shell 11, so that any wall cavity 10 is connected to the grouting area 20 to form a connected area. After the connected area is filled with concrete, any shear wall is connected to the top plate as one unit.

[0092] In this structure, the inner membrane shell 11 and the outer membrane shell 12 of the shear wall body 1 have different heights, meaning there is a height difference between them. Specifically, the height of the outer membrane shell 12 is higher than the height of the inner membrane shell 11. One edge of the top plate body 2 can be fixed and connected to the inner membrane shell 11 to form an integral structure, such as... Figure 3 As shown, one edge of the top plate body 2 rests on the upper end of the inner membrane shell 11, and the two are fixedly connected by welding, so that the top plate body 2 and the shear wall body 1 are connected to form an integral structure; or, one edge of the top plate body 2 can be inserted into the inner membrane shell 11, and the two are fixedly connected by welding, so that the top plate body 2 and the shear wall body 1 are connected to form an integral structure. Furthermore, the upper opening of the wall cavity 10 formed by the inner membrane shell 11 and the outer membrane shell 12 (such as...) Figure 3 The area at point P shown can be connected to the edge of the pouring area 20 of the top slab body 2 to form a connected area, so that the two areas for pouring concrete (wall cavity 10 and pouring area 20) form an integral area for pouring concrete. After the concrete pouring construction of the connected area is completed, the resulting shear wall and the top slab can be connected into an integral structure.

[0093] For example, when four shear wall bodies 1 enclose a rectangle, the upper ends of the inner membrane shells 11 in the four shear wall bodies 1 are respectively welded to the four edges of the top plate body 2, so that the pouring area 20 of the top plate body 2 is connected to the wall cavity 10 of the four shear wall bodies 1 to form a connected area. When the concrete is poured into the connected area, the four shear walls are connected to the top plate as one unit.

[0094] In this embodiment of the invention, the outer membrane shell 12 and the inner membrane shell 11 of the shear wall body 1 are set to different heights, and the outer membrane shell 12 is made higher than the inner membrane shell 11. This allows the portion of the outer membrane shell 12 that is higher than the inner membrane shell 11 to act as a barrier when pouring concrete for the top slab body 2 after the inner membrane shell 11 is fixedly connected to the top slab body 2. After the concrete inside the wall cavity 10 is poured to form the shear wall, concrete continues to be poured into the pouring area 20 in the connected area that has been integrated, thereby improving the smoothness of construction during the concrete pouring stage.

[0095] Optionally, see Figure 4 As shown, the outer membrane shell 12 and the inner membrane shell 11 are at the same height; the bottom surface of the top plate body 2 is set at a height lower than the height of the inner membrane shell 11, and the part of the inner membrane shell 11 that is higher than the bottom surface of the top plate body 2 forms a pouring area 20 with the bottom surface of the top plate body 2.

[0096] Among them, the inner membrane shell 11 and the outer membrane shell 12 of the shear wall body 1 have the same height, and one side edge of the bottom surface of the top plate body 2 can be fixedly connected to the inner membrane shell 11, so that the shear wall body 1 and the top plate body 2 form an integral structure. For example, one side edge of the bottom surface of the top plate body 2 is inserted into the inner membrane shell 11, and the two are fixedly connected by welding.

[0097] In this embodiment of the invention, the portion of the inner membrane shell 11 extending above the bottom surface of the top slab body 2 can form a pouring area 20 for subsequent pouring of top slab concrete, together with the bottom surface of the top slab body 2. That is, the portion of the inner membrane shell 11 extending above the bottom surface of the top slab body 2 can act as a seal for the pouring area 20, making the wall cavity 10 and the pouring area 20 two separate regions. When pouring concrete for this prefabricated room module, concrete more suitable for pouring the shear wall body 1 can be selectively poured into the wall cavity 10 first, and then concrete more suitable for pouring the top slab body 2 can be selectively poured into the pouring area 20, better achieving zoned concrete pouring and further saving costs. For example, C40 or C50 concrete can be poured into the wall cavity 10 first to obtain the shear wall, and then C30 concrete can be poured into the pouring area 20 to obtain the top slab.

[0098] Optionally, see Figure 5 As shown, the top plate body 2 includes: bottom formwork steel plate 21 and steel truss 22.

[0099] The bottom formwork steel plate 21 can be a 1.5mm thick steel plate, and its lower surface is the bottom surface of the top slab body 2. The steel truss 22 is welded to the upper surface of the bottom formwork steel plate 21, and the bottom formwork steel plate 21 and the inner membrane shell 11 can be fixedly connected by welding, so that the upper surface of the bottom formwork steel plate 21 and the steel truss 22 are located inside the pouring area 20 of the top slab body 2. In this embodiment of the invention, the use of a prefabricated part of the assembled floor slab as the top slab body 2 can ensure that the top slab body 2 can be supported without support during the construction and concrete pouring.

[0100] Optionally, when the height of the outer membrane shell 12 is higher than the height of the inner membrane shell 11, the bottom formwork steel plate 21 overlaps the inner membrane shell 11. For example, one edge of the bottom formwork steel plate 21 can be overlapped on the upper end of the inner membrane shell 11, and the two can be fixedly connected by welding, so that the top plate body 2 and the shear wall body 1 are connected to form an integral structure.

[0101] Optionally, when the outer membrane shell 12 and the inner membrane shell 11 are at the same height, the bottom mold steel plate 21 is connected to the side wall of the inner membrane shell 11. For example, one edge of the bottom mold steel plate 21 can be inserted into the side wall of the inner membrane shell 11, and the two can be fixedly connected by welding, so that the top plate body 2 and the shear wall body 1 are connected to form an integral structure.

[0102] Optionally, see Figure 1 or Figure 2 As shown, the shear wall body 1 also includes: a shear wall steel frame 13; the shear wall steel frame 13 is fixedly connected in the wall cavity 10.

[0103] Optionally, the shear wall body 1 further includes: a first connector; one side of the shear wall steel frame 13 is fixedly connected to the inner membrane shell 11 through the first connector, and the other side of the shear wall steel frame 13 is fixedly connected to the outer membrane shell 12 through the first connector.

[0104] In addition to the inner membrane shell 11 and outer membrane shell 12 arranged opposite to each other and parallel to each other, the shear wall body 1 also has a shear wall steel frame 13 fixedly installed inside the wall cavity 10 formed between the inner membrane shell 11 and the outer membrane shell 12. Furthermore, the shear wall steel frame 13 can be connected to the inner membrane shell 11 and the outer membrane shell 12 respectively through a first connector, so that the shear wall body 1 forms a "sandwich" structure, that is, one side of the shear wall steel frame 13 is connected to the inner membrane shell 11 through the first connector, and the other side is also connected to the outer membrane shell 12 through the first connector, forming an integral structure with a formwork-free design. The first connector can include self-tapping screws, angle steel, channel steel, or flat steel plates, etc.

[0105] Optionally, see Figure 2As shown, the shear wall steel frame 13 includes: a steel cage 131 and steel structure edge members 132 that are vertically fixedly connected to both ends of the steel cage 131 along its length.

[0106] In this embodiment of the invention, the length direction of the reinforcing cage 131 is the transverse extension direction of the shear wall body 1, and steel structure edge members 132 are vertically fixedly connected to both ends of the reinforcing cage 131 along its length. Specifically, the two ends of the reinforcing cage 131 along its length can be fixedly connected to the surface of the steel structure edge members 132 by welding, or, as... Figure 6 As shown, the reinforcing cage 131 and the steel structure edge member 132 can also be connected by an additional steel structure member Z. This steel structure member Z is used for local dimensional adjustment of the prefabricated room module. For example, if the length of the reinforcing cage 131 is insufficient, the additional steel structure member Z can be used to fix the reinforcing cage 131 and the steel structure edge member 132. In this embodiment of the invention, the steel structure edge members 132 provided at both ends of the reinforcing cage 131 constitute both ends of the shear wall steel frame 13 and both ends of the shear wall body 1. The steel structure edge member 132 can be a steel column or an I-beam, etc.

[0107] Since the shear wall steel frame 13 is housed within the wall cavity 10 formed by the inner membrane shell 11 and the outer membrane shell 12, the steel structure edge member 132, as part of the shear wall steel frame 13, is also housed within the wall cavity 10 formed by the inner membrane shell 11 and the outer membrane shell 12. For details, please refer to... Figure 2 As shown, the steel structure edge member 132 is fixedly connected to the inner membrane shell 11 on one side and to the outer membrane shell 12 on the other side. Furthermore, the reinforcing cage 131, also part of the shear wall steel frame 13, is also located in the wall cavity 10 formed by the inner and outer membrane shells 11. The reinforcing cage 131 is fixedly connected to the inner membrane shell 11 on one side and to the outer membrane shell 12 on the other side. For example, the fixing methods may include welding, bolting, or self-tapping screws. This embodiment of the invention does not specifically limit the fixing methods described above.

[0108] Optionally, see Figure 6 As shown, the reinforcing cage 131 includes: a tie bar 1311 and two layers of opposite and parallel reinforcing mesh 1312; the tie bar 1311 is disposed between the two layers of reinforcing mesh 1312 and is used to tie the reinforcing mesh 1312 on both sides; the two ends of the reinforcing mesh 1312 are fixedly connected to the steel structure edge member 132.

[0109] In this embodiment of the invention, the two side surfaces of the reinforcing cage 131, which are fixedly connected to the inner membrane shell 11 and the outer membrane shell 12 respectively, are two layers of opposing and parallel reinforcing mesh 1312. The two layers of reinforcing mesh 1312 are connected by tie rods 1311, such as... Figure 6 As shown, the tie bar 1311 can be connected to the two layers of steel mesh 1312 in a Z-shape to prevent bulging of the formwork during concrete pouring. In addition, the two ends of the steel mesh 1312 are fixedly connected to the steel structure edge members 132 located at both ends of the length direction of the steel cage 131 by welding.

[0110] Optionally, the reinforcing mesh includes: horizontal reinforcing bars and vertical joists; multiple parallel horizontal reinforcing bars and multiple parallel vertical joists are fixedly connected to form the reinforcing mesh.

[0111] The steel mesh is formed by the perpendicular intersection of multiple parallel horizontal steel bars and multiple parallel vertical ribs (e.g., ...). Figure 2 As shown in the diagram, specifically, multiple parallel horizontal reinforcing bars are all set on the same side of multiple parallel vertical keels, allowing the side of the vertical keel away from the horizontal reinforcing bars to be fixedly connected to the inner membrane shell 11 or the outer membrane shell 12. For example, the vertical keel can be angle steel, channel steel, flat steel plate, or square steel bar, etc. When the vertical keel is a C-shaped channel steel, the open side of the vertical keel can be fixedly connected to the horizontal reinforcing bars, and the flat side of the vertical keel can be fixedly connected to the outer membrane shell 12 or the inner membrane shell 11. The fixed connection between the vertical keel and the membrane shell can include bolt connection or self-tapping screw connection, etc.

[0112] Optionally, see Figure 7 As shown, the steel structure edge member 132 includes: a steel column 1321, an inner core column 1322, and a sleeve assembly 1323; the steel column 1321 includes a bottom end and a top end, and the sleeve assembly 1323 is fixedly connected to the bottom end of the steel column 1321 for sleeve with the inner core column 1322 of the adjacent prefabricated room module on the lower floor; the inner core column 1322 is fixedly connected to the top end of the steel column 1321, and the inner core column 1322 protrudes from the top end of the steel column 1321 for inserting into the sleeve assembly 1323 of the adjacent prefabricated room module on the upper floor to form a nest.

[0113] The steel column 1321 is a hollow, elongated structure. The cross-sectional width of the inner core column 1322 is smaller than that of the steel column 1321. The cross-sectional width of the sleeve component 1323 is the same as that of the steel column 1321. The sleeve component 1323 can be fixedly connected to the bottom of the steel column 1321 by welding. Furthermore, the sleeve component 1323 fixedly connected to the bottom of the steel column 1321 in the prefabricated room module located on the upper floor can be nested with the inner core column 1322 fixedly connected to the top of the steel column 1321 in the prefabricated room module located on the adjacent lower floor, thus fixing the two adjacent prefabricated room modules together.

[0114] Optionally, see Figure 8 As shown, the sleeve assembly 1323 includes: a steel column body 001 with multiple welding grooves 002 on its sidewall, and a pull-out resistant connecting assembly 003; the pull-out resistant connecting assembly 003 is fitted onto the inner sidewall of the steel column body 001, and the pull-out resistant connecting assembly 003 and the steel column body 001 are welded and fixed at the welding grooves 002.

[0115] When two adjacent prefabricated room modules are vertically connected by steel structure edge members 132, in order to enhance the pull-out resistance between the two adjacent steel structure edge members 132, this embodiment of the invention provides an anti-pull-out connection component 003 attached to the inner wall of the steel column body 001, and welds the anti-pull-out connection component 003 to multiple welding grooves 002 opened on the side wall of the steel column body 001 from the outside. Specifically, during welding, the anti-pull-out connection component 003 is welded to the steel column body 001 from the welding groove 002 position on the outer wall of the steel column body 001, such as by spot welding, so that the inner wall of the steel column body 001 forms an anti-pull-out structure with concave and convex shapes. At the same time, it facilitates the welding operation, greatly improves the convenience of welding, thereby increasing the welding speed, improving production efficiency, and facilitating the realization of automated production.

[0116] Optionally, see Figure 8 As shown, one side of the pull-out resistant connecting assembly 003 has a concave-convex shape to form multiple pull-out resistant structures extending along a preset direction. The side of the pull-out resistant connecting assembly 003 facing away from the pull-out resistant structures is attached to the inner wall of the steel column body 001. The preset direction forms an angle with the axial direction of the steel column body 001. Specifically, the extension direction of the pull-out resistant structures provided on the pull-out resistant connecting assembly 003 forms an angle with the axial direction of the steel column body 001, that is, when the sleeve assembly 1323 is in use, the pull-out resistant structures are not set vertically.

[0117] Further, see Figure 9 As shown, Figure 9A schematic diagram of a first structure of the pull-out resistant connection assembly 003 is shown. The pull-out resistant connection assembly 003 includes a steel plate 011 and steel bars 010. The steel bars 010 are welded to the inner wall of the steel column body 001 via the steel plate 011. Multiple steel bars 010 are present. The steel plate 011 includes a first side and a second side facing away from each other. Multiple steel bars 010 are sequentially and spaced apart and welded to the first side of the steel plate 011. The multiple steel bars 010 extend along a predetermined direction X to form a pull-out resistant structure. The multiple steel bars 010 are welded to the steel plate 011 to form a whole. Then, the second side of the steel plate 011 is attached to the inner wall of the steel column body 001. Finally, welding is performed from the outer wall of the steel column body 001 through a welding groove 002.

[0118] The steel plate 011 can be a thin-walled steel plate, the shape of which matches the inner wall shape of the steel column body 001, for example, a rectangular structure. Multiple steel bars 010 are distributed sequentially at intervals, forming a concave-convex tensile-resistant structure on the first side of the steel plate 011. The multiple steel bars 010 are uniformly welded to the first side of the steel plate 011, and each steel bar 010 extends along a predetermined direction X, with the multiple steel bars 010 distributed sequentially in a direction perpendicular to the predetermined direction X.

[0119] In this embodiment of the invention, the shape of the steel strip 010 welded onto the steel plate 011 is not limited. It can be a wavy structure, an arc-shaped structure, a long straight structure, a long oblique line structure, an irregular structure, or a bent structure. When the steel strip 010 is a bent structure, it can include a first segment and a second segment connected to each other, with the first segment and the second segment having an included angle. This application does not limit the specific shape of the steel strip 010, as long as it is welded onto the steel plate 011 and extends along a predetermined direction X, so that the first side of the steel plate 011 forms a concave-convex structure, which has a pull-out resistance effect. See also Figure 10 As shown, Figure 10 A schematic diagram of a second structure of the anti-pull-out connection assembly 003 is shown. The anti-pull-out connection assembly 003 may include a steel plate 011, which includes a first side and a second side facing away from each other. The first side has a plurality of protruding ridges 012 extending along a predetermined direction X to form an anti-pull-out structure. During installation, the second side of the steel plate 011 is welded to the inner wall of the steel column body 001. The protruding ridges 012 and the steel plate 011 can be integrally formed. For example, they can be formed by mold casting or extrusion molding, etc., which is not limited in this embodiment.

[0120] In other optional embodiments, multiple grooves may be sequentially spaced on the first side of the steel plate 011, extending along a predetermined direction X, with a raised ridge 012 forming between any two adjacent grooves. Preferably, the width of the grooves on the first side of the steel plate 011 can be much greater than its height, and can be formed by milling. That is, multiple grooves are milled into a flat plate, such that any two adjacent grooves are separated by the raised ridge 012.

[0121] See Figure 11 As shown, Figure 11 A schematic diagram of a third structure of the pull-out resistant connection assembly 003 is shown. The pull-out resistant connection assembly 003 is a frame structure and may include intersecting crossbeams 004 and longitudinal beams 013. During installation, the longitudinal beams 013 are parallel to the axis of the steel column body 001, and the crossbeams 004 extend along a predetermined direction X to form a pull-out resistant structure. Further, the number of longitudinal beams 013 can be at least two, and the number of crossbeams 004 can be multiple. At least two longitudinal beams 013 extend axially along the steel column body 001, and multiple crossbeams 004 are sequentially spaced apart, with the ends of each crossbeam 004 connected to the outermost longitudinal beam 013. For example, Figure 5 In the structure shown, there are two longitudinal beams 013, each located on the outermost side, and multiple transverse beams 004 are evenly spaced between the two longitudinal beams 013.

[0122] During installation, the anti-pull-out connection component 003 of the frame structure is set on the inner wall of the steel column body 001. However, it should be noted that the welding groove 002 opened on the steel column body 001 should correspond to the crossbeam 004 of the frame structure to facilitate welding.

[0123] Furthermore, the welding groove 002 opened on the side wall of the steel column body 001 can be a strip groove, a circular groove, an arc groove, or a zigzag groove, etc. This application does not limit the shape, size, or position of the welding groove 002, as long as it meets the requirement that the steel column body 001 and the anti-pull-out connection component 003 can be welded and fixed from the outer side wall of the steel column body 001 through the welding groove 002 during production welding.

[0124] The shape of the crossbeam 004 can be bent, wavy, arc-shaped or long straight. This application does not limit the specific shape of the crossbeam 004, as long as it extends along the preset direction X. After the anti-pull-out connecting component 003 is welded to the inner wall of the steel column body 001, the inner side of the steel column body 001 forms a concave-convex structure, which has an anti-pull-out effect.

[0125] In this embodiment of the application, in order to improve the pull-out resistance between the steel structure edge members 132 of two adjacent prefabricated room modules, a pull-out resistance connection component 003 can be provided on each inner sidewall of the steel column body 001. That is, the steel column body 001 includes multiple inner sidewalls, and each inner sidewall is fitted with a pull-out resistance connection component 003 to enhance the pull-out resistance from various sides.

[0126] Optionally, see Figure 12 and Figure 13 As shown, the pull-out resistant connection assembly 003 is a hollow columnar structure, including multiple crossbeams 004 extending along a preset direction; the welding groove 002 corresponds to at least a portion of the crossbeams 004, and the preset direction has an angle with the axial direction of the steel column body 001.

[0127] During installation, the pull-out resistant connecting component 003 is embedded inside the steel column body 001, with the axial direction of the steel column body 001 being the same as the axial direction of the pull-out resistant connecting component 003. The welding groove 002 of the steel column body 001 corresponds to at least a portion of the crossbeam 004 of the pull-out resistant connecting component 003. The crossbeam 004 is welded to the steel column body 001 from the outside at the welding groove 002 position, thereby fixing the pull-out resistant connecting component 003 and the steel column body 001. After welding, the crossbeam 004 of the pull-out resistant connecting component 003 protrudes from the inner wall of the steel column body 001, forming a pull-out resistant structure with a concave-convex shape. It is understood that, to improve pull-out resistance, the extension direction of the pull-out resistant structure provided on the sleeve component 1323 forms an angle with the axial direction of the sleeve component 1323. When the component 1323 is in use, the crossbeam 004 is not set vertically, but extends horizontally or inclined.

[0128] Further, see Figure 14 As shown, Figure 14 A schematic diagram of a fourth structure of the pull-out resistant connecting assembly 003 is shown. The pull-out resistant connecting assembly 003 further includes vertical beams 014, which are intersected and connected to horizontal beams 004, forming a hollow columnar structure. Specifically, the vertical beams 014 extend along the axial direction Y, and there are multiple vertical beams 014, which are parallel but not located on the same plane. A horizontal beam 004 connects two adjacent vertical beams 014, and the two adjacent vertical beams 014 and the horizontal beam 004 located between them form a plane. These multiple planes form a hollow columnar structure. The vertical beams 014 extend along the axial direction Y, and the horizontal beams 004 extend along a predetermined direction X, with the axial direction Y forming an angle with the predetermined direction X.

[0129] Furthermore, multiple horizontal beams 004 are provided between any two adjacent vertical beams 014, and the multiple horizontal beams 004 between any two adjacent vertical beams 014 are distributed sequentially at intervals along the axial direction Y. For example Figure 14As shown, there are four vertical beams 014 arranged in parallel. Horizontal beams 004 connect adjacent vertical beams 014 to form a rectangular frame structure. Two adjacent vertical beams 014 and the multiple horizontal beams 004 between them form a sidewall. The horizontal beams 004 on each sidewall extend along a predetermined direction X, and the multiple horizontal beams 004 are distributed sequentially at intervals along the axial direction Y.

[0130] Specifically, the preset direction X can be perpendicular to the axis Y, that is... Figure 14 In the structure shown, in the usage state, all horizontal beams 004 extend horizontally, and all vertical beams 014 extend vertically. In an optional embodiment of this application, multiple horizontal beams 004 are evenly spaced between any two adjacent vertical beams 014. To improve the pull-out resistance between the steel structure edge members 132 of the upper and lower prefabricated room modules, the gap between the horizontal beams 004 on each side wall of the sleeved assembly 1323 should not be too small. Specifically, the distance between two adjacent horizontal beams 004 is greater than or equal to the width of the horizontal beam 004.

[0131] See Figure 12 and Figure 15 As shown, in an optional embodiment of this application, the cross-sectional shape of the pull-out connecting component 003 is the same as the cross-sectional shape of the steel column body 001, and both are rectangular. Each sidewall of the steel column body 001 is uniformly provided with multiple welding grooves 002. The number of welding grooves 002 is the same as the number of crossbeams 004, and the multiple welding grooves 002 correspond one-to-one with the multiple crossbeams 004. By welding at the welding groove 002 positions, each crossbeam 004 is fixed to the steel column body 001, thereby improving the strength of the sleeve component 1323 while meeting the pull-out resistance requirements.

[0132] To facilitate the embedding of the anti-pull-out connection component 003 into the steel column body 001, the maximum length dimension a1 of the cross-section of the anti-pull-out connection component 003 should be smaller than the minimum length dimension a2 of the cross-section of the steel column body 001, and the maximum width dimension b1 of the cross-section of the anti-pull-out connection component 003 should be smaller than the minimum width dimension b2 of the cross-section of the steel column body 001.

[0133] To ensure welding quality, optionally, the distance between the outer wall of the pull-out connecting component 003 and the inner wall of the steel column body 001 can be greater than or equal to 1 mm and less than or equal to 5 cm, that is, a2-a1 greater than or equal to 1 mm and less than or equal to 5 cm; b2-b1 greater than or equal to 1 mm and less than or equal to 5 cm. In other words, the gap between the pull-out connecting component 003 and the steel column body 001 should not be too large. When the gap is too large, it is not only detrimental to welding fixation, but also makes it difficult to guarantee the stability after welding. Of course, the gap between the pull-out connecting component 003 and the steel column body 001 should not be too small either. When the gap is too small, the pull-out connecting component 003 will not easily embed into the steel column body 001. This application does not limit the distance between the anti-pull-out connecting component 003 and the steel column body 001, as long as the anti-pull-out connecting component 003 can be embedded in the steel column body 001, and the crossbeam 004 of the anti-pull-out connecting component 003 can be fixed to the steel column body 001 from the outside of the steel column body 001 by welding.

[0134] To further improve the connection stability between the pull-out connecting component 003 and the steel column body 001, in addition to welding at the welding groove 002, welding can also be performed at the ends of the pull-out connecting component 003 and the steel column body 001. For example, a weld can be made at the connection point between the outer wall of the end of the pull-out connecting component 003 and the inner wall of the end of the steel column body 001. That is, the outer wall of the end of the pull-out connecting component 003 is chamfered, and / or, the inner wall of the end of the steel column body 001 is chamfered.

[0135] See Figure 16 As shown, Figure 16 A schematic diagram of a fifth structure of the pull-out resistant connecting assembly 003 is shown. The pull-out resistant connecting assembly 003 is a rectangular steel plate with multiple through slots 015 extending along a predetermined direction X, forming a crossbeam 004 between adjacent through slots 015. The rectangular steel plate is bent multiple times along the predetermined direction X, and the ends are welded together to form a hollow columnar structure. By bending the rectangular steel plate with multiple through slots 015, for example, three times, a right angle is formed between adjacent faces after bending, and the first and fourth faces are welded together end-to-end, a hollow rectangular columnar structure can be formed.

[0136] Then, the pull-out connecting component 003 is embedded into the steel column body 001, and the welding groove 002 opened in the steel column body 001 is offset from the through groove 015 on the pull-out connecting component 003, that is, the welding groove 002 corresponds to the crossbeam 004. At the position of the welding groove 002, the crossbeam 004 is welded to the steel column body 001 from the outside of the steel column body 001.

[0137] Optionally, see Figure 17As shown, the outer wall of the inner core column 1322 is provided with a protruding ridge 005 extending in a preset direction, which forms an angle with the axial direction of the steel column body 001. When the steel structure edge members 132 of the adjacent prefabricated room modules are inserted and cement is poured, the pull-out resistance of the steel structure edge members 132 of the adjacent prefabricated room modules can be effectively improved through the protruding ridge 005 on the outer wall of the inner core column 1322 and the pull-out resistance structure of the inner wall of the sleeve component 1323.

[0138] Optionally, see Figures 18 to 20 As shown, the lower ends of the opposite side walls of the inner core column 1322 are provided with first insertion slots 006, and the upper ends of the opposite side walls of the steel column 1321 are provided with second insertion slots 007; the steel structure edge member 132 also includes: insertion plate 1324; the insertion plate 1324 is used to insert into the first insertion slots 006 and the second insertion slots 007, so that the inner core column 1322 and the steel column 1321 are fixedly connected.

[0139] Optionally, see Figure 21 and Figure 22 As shown, the inner core column 1322 has a positioning cone 008 at its top, and the inner wall of the sleeve assembly 1323 is provided with a positioning cavity 009 for accommodating the positioning cone 008.

[0140] In this embodiment of the invention, a steel structure with an upward-pointing sharp corner, namely a positioning cone 008, can be fixedly installed at the top of the inner core column 1322. Correspondingly, a receiving cavity corresponding to the positioning cone 008, namely a positioning cavity 009, is provided on the inner side wall of the sleeve assembly 1323. Specifically, the positioning cavity 009 is an upwardly recessed structure that allows the positioning cone 008 to be embedded. A hole can be opened at the highest point of the positioning cavity 009 so that the positioning cone 008 can be aligned with the hole, and further, the positioning cone 008 can be inserted into the hole for fixation. The surface of the positioning cavity 009 is smooth, and its material can also be steel. This helps to limit the positioning of the two adjacent prefabricated room modules when the steel structure edge members 132 of the two adjacent prefabricated room modules are inserted. This is achieved through the cooperation between the positioning cone 008 at the top of the inner core column 1322 of the lower prefabricated room module and the positioning cavity 009 on the inner side of the bottom of the sleeve assembly 1323 of the upper prefabricated room module, thereby completing the splicing of the two prefabricated room modules more accurately and quickly.

[0141] Optionally, see Figure 23 As shown, Figure 23 A top view of the inner core column 1322 is shown; wherein, limiting steel bars 016 are inserted into the outer wall surface of the diagonally opposite corners of the inner core column 1322, and the limiting steel bars 016 are arranged along the extension direction of the diagonal line in the cross section of the inner core column 1322.

[0142] In this embodiment of the invention, limiting steel bars 016 can be provided on one or two pairs of diagonally opposite outer walls of the inner core column 1322, such as... Figure 23 As shown, Figure 23 Limiting steel bars 016 are provided on the outer walls of a pair of opposite corners of the inner core column 1322 shown. Through the cooperation between the limiting steel bars 016 provided on the inner core column 1322 of the lower prefabricated room module and the sleeve assembly 1323 of the upper prefabricated room module, for example, the limiting steel bars 016 are made to fit against the inner wall of the sleeve assembly 1323 of the upper prefabricated room module, thereby limiting the two adjacent prefabricated room modules, so as to complete the splicing of the upper and lower prefabricated room modules more accurately and quickly.

[0143] Optionally, such as Figure 1 As shown, the prefabricated room module also includes: a connecting beam body 3, which has a connecting beam cavity 30 for cast-in-place concrete. After concrete is poured into the connecting beam cavity 30, a connecting beam is formed. The geometry of the connecting beam is defined by the connecting beam body 3.

[0144] In cases where connecting beams are required in the final building structure, such as when doors and windows are installed in the prefabricated room module (e.g.) Figure 1 As shown in the diagram, or, in the case where two shear wall bodies 1 need to be connected in the same plane, the prefabricated room module may also include a connecting beam body 3. The connecting beam body 3 is the prefabricated part of the connecting beam in the final building structure formed on the construction site, and the specific geometry of the final connecting beam is directly defined by the connecting beam body 3. That is, the connecting beam body 3 is the connecting beam before concrete is poured, and the specific shape of the connecting beam formed after concrete is poured into the connecting beam body 3 is consistent with the original specific shape of the connecting beam body 3. For example, if the shape of the connecting beam body 3 is rectangular, the shape of the connecting beam obtained after pouring concrete is also rectangular. Specifically, the connecting beam body 3 includes a connecting beam cavity 30, which is used to accommodate the concrete poured into the connecting beam body 3 on the construction site so that the connecting beam body 3 forms a connecting beam.

[0145] Optionally, see Figure 24 As shown, the connecting beam body 3 includes: a connecting beam membrane shell 31, a connecting beam reinforcing cage 32, a connecting beam bottom steel plate 33, and a connecting beam vertical keel 34; the two outer sides of the connecting beam reinforcing cage 32 are fixedly connected to the connecting beam vertical keel 34, and the connecting beam reinforcing cage 32 is fixedly connected to the inside of the connecting beam membrane shell 31 through the connecting beam vertical keel 34, and the inside of the connecting beam membrane shell 31 is the connecting beam cavity 30; both ends of the connecting beam reinforcing cage 32 in the length direction and both ends of the connecting beam bottom steel plate 33 in the length direction are fixedly connected to the shear wall body 1 connected to both ends of the connecting beam body 3, and the connecting beam bottom steel plate 33 is fixedly connected to the bottom of the connecting beam vertical keel 34.

[0146] like Figure 24As shown, the internal structure of the connecting beam membrane shell 31 forms a connecting beam cavity 30 for pouring connecting beam concrete. The connecting beam reinforcement cage 32 is located inside the connecting beam membrane shell 31, that is, the connecting beam reinforcement cage 32 is located inside the connecting beam cavity 30. Specifically, multiple connecting beam vertical joists 34 are vertically fixedly installed on both outer sides of the connecting beam reinforcement cage 32, and the bottom of the connecting beam vertical joists 34 is fixedly connected to the upper surface of the bottom steel plate 33 of the connecting beam (e.g., by welding). On the one hand, the connecting beam vertical joists 34 can provide vertical reinforcement to the connecting beam body 3; on the other hand, the connecting beam reinforcement cage 32 can also be fixedly connected to the connecting beam membrane shell 31 through the connecting beam vertical joists 34. The connecting beam vertical joists 34 can be angle steel, channel steel, flat steel plate, square steel bar, or square steel pipe, etc. Figure 24 As shown, the vertical joists 34 of the connecting beam are C-shaped channel steel; the connection between the connecting beam reinforcement cage 32 and the vertical joists 34 can be fixed by welding; optionally, the connecting beam body 3 also includes: a second connector (not shown in the figure); the connecting beam membrane shell 31 is fixedly connected to the vertical joists 34 of the connecting beam through the second connector. For example, the connection between the vertical joists 34 and the connecting beam membrane shell 31 can be fixedly connected by an additional second connector. Optionally, the second connector may include self-tapping screws, bolts, or rivets.

[0147] Secondly, the length direction of the reinforcing cage 32 and the length direction of the bottom steel plate 33 of the coupling beam are both transverse extension directions of the coupling beam body 3. Both ends of the reinforcing cage 32 and the bottom steel plate 33 are connected to the shear wall body 1 at both ends of the coupling beam body 3. Figure 24 As shown ( Figure 24 The diagram only shows one end of the connecting beam body 3 (the other end is not shown). Both ends of the connecting beam reinforcement cage 32 along its length and both ends of the connecting beam bottom steel plate 33 along its length are fixedly connected to the steel structure edge members 132 in the shear wall body 1 at both ends of the connecting beam body 3. Specifically, both ends of the connecting beam reinforcement cage 32 along its length and both ends of the connecting beam bottom steel plate 33 along its length can be fixedly connected to the surface of the steel structure edge members 132 by welding.

[0148] The prefabricated room module provided in this embodiment of the invention can not only use the connecting beam membrane shell 31 and the bottom steel plate 33 of the connecting beam as beam templates during the module stage (including the stage before pouring concrete, such as the factory prefabrication stage, hoisting and transportation stage, etc.), which facilitates the subsequent pouring of concrete for the connecting beam body 3 on the construction site, but also the connecting beam membrane shell 31 and the bottom steel plate 33 of the connecting beam can continue to participate in the stress of the beam during the use stage of the building structure.

[0149] Optionally, see Figure 1As shown, the prefabricated room module may also include: a base plate 4, wherein the base plate 4 is a prefabricated part of the base plate combined with the building surface layer construction method, the edge of the base plate 4 is fixedly connected to the lower end of the shear wall body 1, and the base plate 4 is arranged opposite to the top plate body 2.

[0150] Since the embodiments of the present invention adopt a modular approach to prefabricate the prefabricated parts of the modules in the factory in advance, namely the prefabricated room modules, in order to further enhance the stability of the prefabricated room modules during hoisting and transportation, the embodiments of the present invention reinforce the prefabricated room modules by fixing a base plate 4 to the lower end of the shear wall body 1 of the prefabricated room modules, so that the components in the modules will not be displaced, damaged or disintegrated due to braking or hoisting sway during subsequent hoisting and transportation of the prefabricated room modules.

[0151] Optionally, see Figure 25 As shown, the base plate 4 includes: a steel frame 41 and / or a base plate concrete 42.

[0152] In this embodiment of the invention, since the base slab 4 is a prefabricated portion of the base slab combined with the building surface layer construction, the base slab 4 (the prefabricated portion from the factory) may only include the steel frame 41 combined with the building surface layer construction. That is, the base slab 4 of the prefabricated room module processed in the factory only contains the steel frame 41. After the prefabricated room module is transported to the construction site, concrete is poured onto the base slab 4, i.e., the base slab concrete 42. Alternatively, the base slab 4 (the prefabricated portion from the factory) may also only include the base slab concrete 42 combined with the building surface layer construction. That is to say, the base slab 4 of the prefabricated room module obtained in the factory only includes the precast base slab concrete 42, and does not include the steel frame 41; or, the base slab 4 (the prefabricated part in the factory) may include both the steel frame 41 combined with the building surface layer and the base slab concrete 42 combined with the building surface layer. In other words, the base slab 4 of the prefabricated room module obtained in the factory includes both the steel frame 41 and the base slab concrete 42. After the prefabricated room module is transported to the construction site, there is no need to pour concrete on the base slab 4.

[0153] Optionally, see Figure 25 As shown, Figure 25 The diagram shows a case where the base plate 4 includes a steel frame 41, which includes steel frame beams 411 and steel purlins 412. The steel frame beams 411 are fixedly connected to the lower end of the shear wall body 1 by welding or bolting, forming a rectangular steel frame (such as a base frame). Multiple steel purlins 412 are welded into the rectangular steel frame formed by the steel frame beams 411. The multiple steel purlins 412 can be parallel to each other or can be diagonally intersecting, so that the steel frame beams 411 and the steel purlins 412 form a planar steel frame 41.

[0154] This invention also provides a modular building, see [link to relevant documentation]. Figure 26 As shown, the modular building includes: at least one prefabricated room module 500 as described above, and concrete poured in place within the prefabricated room module 500 and / or poured in place between adjacent prefabricated room modules 500.

[0155] Since this invention is a modular building system, the modular building ultimately constructed based on the prefabricated room module 500 must include not only the prefabricated room module 500 prefabricated in the factory, but also the concrete poured into the wall cavities and pouring areas of the prefabricated room module 500 on the construction site, as well as the concrete poured at the splicing points between adjacent prefabricated room modules 500 when multiple prefabricated room modules 500 are spliced ​​together, resulting in a steel-concrete composite modular building. It should be noted that the prefabricated room module 500, after being prefabricated in the factory, can be placed on the construction site for concrete pouring using hoisting and transportation methods.

[0156] The modular building provided in this embodiment of the invention utilizes prefabricated room modules 500 manufactured in a factory, ensuring high-quality construction and greater standardization, making it suitable for standardized building applications such as dormitories and hotels. Furthermore, since the modular building is a steel-concrete composite structure, it fully leverages the advantages of high tensile strength and good plasticity of steel and the good compressive strength of concrete, compensating for their respective shortcomings. This results in high load-bearing capacity and stiffness, as well as good seismic performance, fire resistance, and corrosion resistance. Compared to steel modular buildings, the modular building provided in this embodiment primarily uses a composite structure for load-bearing, further reducing steel consumption and saving costs.

[0157] Optionally, see Figure 27 As shown, the connection between any prefabricated room module 500 and an adjacent prefabricated room module 500 on the same floor is a local shear wall body. The local shear wall bodies at the connection between two adjacent prefabricated room modules 500 form a complete shear wall body 1 (e.g., Figure 28 (As shown).

[0158] In the case where two prefabricated room modules 500 are located on the same floor and are adjacent to each other and need to be spliced ​​together to form a whole, that is, when the two prefabricated room modules 500 are spliced ​​horizontally, the wall at the connection point where each prefabricated room module 500 is spliced ​​with the other adjacent prefabricated room module 500 is a partial shear wall body. In other words, the two horizontally adjacent prefabricated room modules 500 each include a part of the shear wall body. When the two prefabricated room modules 500 are spliced ​​together, the partial shear wall body included at the connection point of each prefabricated room module 500 can be merged into a complete shear wall body. That is, the two horizontally adjacent prefabricated room modules 500 share a single shear wall body.

[0159] Optionally, the partial shear wall body of any one of two adjacent prefabricated room modules 500 on the same floor includes a single-sided membrane shell, and the partial shear wall body of the other prefabricated room module 500 includes a steel cage to be spliced ​​and another single-sided membrane shell fixedly connected to the steel cage to be spliced.

[0160] In this embodiment of the invention, since the complete shear wall body includes a wall membrane shell fixedly installed on the surface of the steel structure edge member and a steel cage fixedly installed in the wall cavity formed by the wall membrane shell, two horizontally adjacent prefabricated room modules 500 can be respectively fixedly connected to the non-intersecting and complementary parts of the above-mentioned complete shear wall body. That is, two horizontally adjacent prefabricated room modules 500 are respectively fixedly connected to complementary local shear wall bodies, so that when the two prefabricated room modules 500 are horizontally spliced ​​together, the connection between them can form a complete shear wall body.

[0161] Specifically, see Figure 27 As shown on the left, a single-sided membrane shell (partial shear wall body, such as an inner membrane shell) is fixedly connected to the surface of the steel structure edge member 132 at the connection point of any one of the two horizontally adjacent prefabricated room modules 500. Figure 27 (Indicated by reference numeral M1 in the attached figure); see also Figure 27 As shown on the right, the steel structure edge member at the connection point of another prefabricated room module 500 is fixedly connected to the steel reinforcement cage to be spliced. Figure 27 (shown as L in the attached diagram) and another single-sided membrane shell (partial shear wall body, such as the outer membrane shell, Figure 27 (Indicated by reference numeral M2 in the attached diagram), when two prefabricated room modules 500 are horizontally adjacent and joined together, see [reference needed]. Figure 28 As shown, the local shear wall bodies corresponding to the two modules are combined to form a complete shear wall body 1. By pouring concrete into the complete shear wall body 1, the horizontal connection between the two prefabricated room modules 500 is achieved.

[0162] This invention also provides another modular building, see [link to relevant documentation]. Figure 26 As shown, the modular building includes at least two prefabricated room modules 500 as described above, each prefabricated room module 500 being connected to an adjacent prefabricated room module 500 located directly below or above it via a steel structural edge member 132.

[0163] In the case where two prefabricated room modules 500 are located on two adjacent floors and are adjacent modules that need to be vertically spliced ​​to form a whole, that is, when the two prefabricated room modules 500 are spliced ​​vertically, each prefabricated room module 500 and the other vertically adjacent prefabricated room module 500 can be fixedly connected by steel structure edge members 132 that are aligned with each other.

[0164] Optionally, see Figure 29 As shown (it should be noted that, Figure 29 The prefabricated room module 500 is not directly shown; only the steel structure edge members 132 of two adjacent prefabricated room modules 500 are shown. The sleeve assembly 1323 of the steel structure edge member 132 of the prefabricated room module 500 is sleeved on the inner core column 1322 of the steel structure edge member 132 of the adjacent prefabricated room module 500 directly below it. The top end of the steel column 1321 of the steel structure edge member 132 of the prefabricated room module 500 abuts against each other. This abutment may also include situations where the parts are not fully inserted due to low alignment accuracy, resulting in a gap between them. For example, there may be a gap between the sleeve assembly 1323 of the steel structure edge member 132 of the prefabricated room module 500 and the top end of the steel column 1321 of the steel structure edge member 132 of the adjacent prefabricated room module 500 directly below it, and the gap is within an allowable range.

[0165] In the case of splicing two adjacent prefabricated room modules 500, the sleeve assembly 1323 of the steel structure edge member 132 of the upper prefabricated room module 500 is sleeved on the inner core column 1322 of the steel structure edge member 132 of the lower prefabricated room module 500. Furthermore, the sleeve assembly 1323 of the steel structure edge member 132 of the upper prefabricated room module 500 is welded to the top of the steel column 1321 of the steel structure edge member 132 of the lower prefabricated room module 500, for example, by external welding. After welding, the pull-out resistance structure protruding from the outer wall of the inner core column 1322 of the steel structure edge member 132 of the lower prefabricated room module 500 corresponds to the pull-out resistance structure on the inner wall of the sleeve assembly 1323 of the steel structure edge member 132 of the upper prefabricated room module 500, which helps improve the pull-out resistance after cement pouring. Optionally, as... Figure 30 As shown, vertical connecting steel bars 600 are provided inside the docking area of ​​the steel structure edge member 132 where two adjacent prefabricated room modules 500 are connected. After concrete is poured inside the docking area, the two adjacent prefabricated room modules 500 are connected into one unit.

[0166] In other words, in this embodiment of the invention, two adjacent prefabricated room modules 500 can be fixedly connected to form a whole by embedding vertical connecting steel bars 600 inside the docking area of ​​the two modules and pouring concrete into the docking area where the vertical connecting steel bars 600 are embedded. The docking area of ​​the two modules can be the connecting portion of the steel structure edge member 132 connecting the two adjacent prefabricated room modules 500, such as... Figure 30 The area outlined by the dashed line is sized by the length of the vertical connecting steel bar 600 inserted therein, which needs to be further determined based on anchorage requirements. Furthermore, it should be noted that pouring concrete into the joint area where the vertical connecting steel bar 600 is embedded can be done by directly pouring concrete into the steel structure edge members 132 of the two adjacent prefabricated room modules 500. Figure 30 (In the attached figure, T represents concrete). For example, concrete is poured in segments downwards from the upper opening of the steel structure edge member 132 of the upper prefabricated room module 500. By adding vertical connecting steel bars 600, the connection strength between the upper and lower prefabricated room modules 500 can be further enhanced when concrete is poured inside the upper and lower connected steel structure edge members 132.

[0167] This invention also provides a construction method for modular buildings, see [link to relevant documentation]. Figure 31 As shown, the construction method includes the following steps 101.

[0168] Step 101: Place all prefabricated room modules into position by hoisting. During and after hoisting, cast-in-place concrete is used to gradually form a modular building from the placed prefabricated room modules.

[0169] Prefabricated room modules transported to the construction site are placed in their designated positions using hoisting equipment. For example, prefabricated room modules located on the first floor are placed in their corresponding positions on the first floor, and prefabricated room modules located on the second floor are stacked on top of prefabricated room modules located on the first floor. This invention not only allows for concrete pouring of the placed prefabricated room modules after hoisting, but also allows for concrete pouring directly onto the placed prefabricated room modules during the hoisting process. For example, when a prefabricated room module is hoisted and placed, concrete can be poured on-site for that module, gradually forming the shear wall and roof slab. Furthermore, the hoisting of the next prefabricated room module can be carried out simultaneously without interruption, achieving a synchronous construction process of hoisting and on-site pouring, greatly improving construction speed.

[0170] This invention utilizes hoisting and transportation to deliver prefabricated room modules, manufactured in the factory, to the construction site and place them in their positions. During hoisting, concrete is poured into the wall cavities and pouring areas of the placed prefabricated room modules. When multiple prefabricated room modules are joined together, after the modules to be joined are hoisted, concrete is poured at the joints between adjacent prefabricated room modules, gradually forming a modular building. This construction method is advantageous because it involves hoisting and transporting lightweight prefabricated room modules. Furthermore, since this method is implemented for prefabricated room modules, only hoisting and concrete pouring of the modules are required on-site. This eliminates the need for hoisting of all or most small components, scaffolding and construction support erection, and on-site concrete formwork erection, rebar tying, and welding. This significantly reduces the number of construction workers required on-site, lowers the difficulty of on-site construction, and increases construction speed and efficiency.

[0171] Optionally, step 101 above, "placing all prefabricated room modules in place by hoisting, and gradually forming a modular building by pouring concrete during and after the hoisting process", may include step A.

[0172] Step A: Construct prefabricated room modules floor by floor from bottom to top to build a modular building.

[0173] Based on the basic construction process of multi-story buildings, the prefabricated room modules are constructed layer by layer from the bottom floor upwards until the modular building is completed.

[0174] The construction of prefabricated room modules on each floor may include the following steps A1-A3.

[0175] Step A1: Use hoisting equipment to place the prefabricated room modules that need to be constructed into position.

[0176] The prefabricated room modules that need to be constructed on this floor can be hoisted using hoisting equipment and placed in the appropriate positions. The hoisting operation of the prefabricated room modules can be repeated until all the prefabricated room modules that need to be constructed on this floor have been placed in place.

[0177] Step A2: Pour concrete into the complete shear wall body of the prefabricated room module that has been placed in place to form a shear wall.

[0178] Once prefabricated room modules have been hoisted and placed in position on that floor, concrete can be poured into those modules. Specifically, concrete can be poured into the complete shear wall body contained within the placed prefabricated room module to form a shear wall. The reason why it is necessary to pour concrete into the complete shear wall body in this embodiment of the invention is that there is a wall cavity between the inner and outer membrane shells of the complete shear wall body for pouring concrete.

[0179] It should be noted that the concrete pouring process in this embodiment of the invention can be divided into multiple stages for gradual pouring. For example, the complete shear wall body can be divided into three sections from bottom to top. First, concrete is poured into the cavity of the lowest section of the wall, then concrete is poured into the cavity of the middle section of the wall, and finally concrete is poured into the cavity of the highest section of the wall, thus completing the cast-in-place pouring of the complete shear wall body. Vibration is not performed during the entire pouring process.

[0180] Step A3: After the shear wall bodies of all prefabricated room modules in the floor have been formed by concrete pouring, concrete is poured for the top slab bodies of all prefabricated room modules in the floor to form the top slab of the floor.

[0181] In this embodiment of the invention, after the shear wall bodies of all prefabricated room modules on a floor have been poured with concrete to form shear walls, concrete can be poured for the top slab bodies of all prefabricated room modules on the floor to obtain the top slab of the entire floor. After the top slab and shear walls of this floor are completely poured, the construction of all prefabricated room modules on that floor is completed. The cast-in-place top slab can also provide support for the upper floors that require subsequent construction. In this embodiment of the invention, after the shear walls are poured, the concrete material can be replaced first, and then concrete can be poured for the top slab bodies of all prefabricated room modules on that floor to obtain the top slab, thereby further saving costs.

[0182] Optionally, step A2 above, "pouring concrete into the complete shear wall body in the placed prefabricated room module to form a shear wall", may include the following steps A21-A22, or A23-A24.

[0183] Step A21: After each prefabricated room module is hoisted and placed, concrete is poured into the complete shear wall body of the prefabricated room module.

[0184] In this embodiment of the invention, once a prefabricated room module has been hoisted and placed in position on a floor, concrete pouring can begin for that module. Specifically, concrete is poured into the complete shear wall body contained within the placed prefabricated room module to form a shear wall. The reason this embodiment can pour concrete into the placed prefabricated room module during the hoisting process is that the wall being poured is a complete shear wall body. In this embodiment, the complete shear wall body is a non-removable membrane structure with an inner and outer membrane shell, containing a cavity for pouring concrete. Even if other prefabricated room modules on the floor have not yet been fully hoisted and placed, pouring concrete into the complete shear wall body with the cavity will not cause concrete overflow due to the sealing effect of the inner and outer membrane shells. Therefore, even when only one prefabricated room module is placed on the floor, concrete can be poured into the complete shear wall body contained within that module to form a shear wall.

[0185] Step A22: When the partial shear wall body at the connection point of two horizontally adjacent prefabricated room modules is fixedly connected to form a complete shear wall body, pour concrete into the complete shear wall body formed at the connection point.

[0186] When at least two horizontally adjacent prefabricated room modules have been hoisted and placed in place on the floor, since the partial shear wall bodies of the two adjacent prefabricated room modules have been spliced ​​together to form a complete shear wall body, concrete can be poured into the spliced ​​complete shear wall body to form a shear wall.

[0187] Alternatively, step A23: hoist and place all prefabricated room modules on the same floor; fix and connect the local shear wall bodies at the connection points of horizontally adjacent prefabricated room modules to form a complete shear wall body.

[0188] Step A24: Pour concrete for all complete shear wall structures within the floor.

[0189] Alternatively, all prefabricated room modules on the same floor can be hoisted and placed together using hoisting equipment, meaning that all horizontally adjacent prefabricated room modules are in place. Then, the local shear wall bodies at the connection points of the horizontally adjacent prefabricated room modules are connected (such as welding the steel structure edge members at the connection points between two adjacent prefabricated room modules), so that the two adjacent local shear wall bodies can form a complete shear wall body. Then, concrete pouring operations can be carried out on all the complete shear wall bodies on the floor.

[0190] By using steps A21-A22 above for concrete pouring, the construction speed of prefabricated room modules can be increased, and the construction period can be greatly reduced.

[0191] Optionally, before step A2 above, "pouring concrete into the complete shear wall body in the placed prefabricated room module to form the shear wall," the construction method may also include the following step B.

[0192] Step B: If the prefabricated room module to be constructed has other prefabricated room modules adjacent to it above and below, fix the connection of the steel structure edge members of the adjacent prefabricated room modules above and below.

[0193] Before pouring concrete for the complete shear wall body in the prefabricated room module, if there are other prefabricated room modules adjacent to it on the upper or lower level, for example, if the prefabricated room module is located on the 2nd floor and another prefabricated room module located at the same position on the 1st floor is connected to it on the lower level, then before pouring concrete for the complete shear wall body in the prefabricated room module located on the 2nd floor, the connection points of the steel structure edge members of the two adjacent prefabricated room modules can be vertically fixed. For example, the bottom steel column module in the steel structure edge member of the prefabricated room module located on the 2nd floor can be vertically fixed to the connection points of the steel structure edge members of the prefabricated room module located on the 1st floor and its adjacent prefabricated room module. The inner core column at the top of the edge member is inserted, and the lower edge of the bottom steel column module in the steel structure edge member of the prefabricated room module on the second floor abuts against the upper edge of the steel column in the steel structure edge member of the prefabricated room module on the first floor and its adjacent prefabricated room module. This allows the pull-out resistant structure on the inner side of the upper steel column module to cooperate with the pull-out resistant protrusion on the surface of the lower inner core column, further improving the pull-out resistance between the steel structure edge members of the upper and lower prefabricated room modules after the concrete is poured. Then, concrete is poured into the complete shear wall body in the two adjacent prefabricated room modules that have been fixedly connected to form a shear wall with good pull-out resistance.

[0194] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A prefabricated room module, characterized in that, include: Shear wall body (1) and top slab body (2); The shear wall body (1) has a wall cavity (10) for cast-in-place concrete. After concrete is poured into the wall cavity (10), a shear wall is formed. The geometry of the shear wall is defined by the shear wall body (1). The top plate body (2) has a pouring area (20) for cast-in-place concrete. After concrete is poured into the pouring area (20), the top plate is formed. The geometry of the top plate is defined by the top plate body (2). The shear wall body (1) is fixedly connected to the top plate body (2); The shear wall body (1) further includes: a shear wall steel frame (13); the shear wall steel frame (13) is fixedly connected in the wall cavity (10); The shear wall steel frame (13) includes: a steel cage (131) and steel structure edge members (132) that are vertically fixedly connected to both ends of the steel cage (131) in the length direction. The steel structure edge member (132) includes: a steel column (1321), an inner core column (1322), and a sleeve assembly (1323); the steel column (1321) includes a bottom end and a top end, the sleeve assembly (1323) is fixedly connected to the bottom end of the steel column (1321) for sleeve with the inner core column (1322) of the adjacent prefabricated room module on the lower floor, the inner core column (1322) is fixedly connected to the top end of the steel column (1321), and the inner core column (1322) protrudes from the top end of the steel column (1321) for inserting into the sleeve assembly (1323) of the adjacent prefabricated room module on the upper floor to form a nest.

2. The prefabricated room module according to claim 1, characterized in that, The shear wall body (1) includes at least: an inner membrane shell (11) and an outer membrane shell (12) arranged opposite to and parallel to each other. The cavity between the inner membrane shell (11) and the outer membrane shell (12) is the wall cavity (10).

3. The prefabricated room module according to claim 2, characterized in that, The height of the outer membrane shell (12) is higher than the height of the inner membrane shell (11); The top plate body (2) is fixedly connected to the inner membrane shell (11), so that any of the wall cavities (10) are connected to the grouting area (20) to form a connected area. After the connected area is filled with concrete, any of the shear walls are connected to the top plate as one unit.

4. The prefabricated room module according to claim 2, characterized in that, The outer membrane shell (12) and the inner membrane shell (11) are at the same height; The bottom surface of the top plate body (2) is set at a height lower than the height of the inner membrane shell (11), and the portion of the inner membrane shell (11) that is higher than the bottom surface of the top plate body (2) forms the grouting area (20) with the bottom surface of the top plate body (2).

5. The prefabricated room module according to any one of claims 2 to 4, characterized in that, The top plate body (2) includes: bottom formwork steel plate (21) and steel truss (22); The steel truss (22) is welded to the upper surface of the bottom formwork steel plate (21), and the bottom formwork steel plate (21) is fixedly connected to the inner membrane shell (11).

6. The prefabricated room module according to claim 5, characterized in that, When the height of the outer membrane shell (12) is higher than the height of the inner membrane shell (11), the bottom mold steel plate (21) overlaps the inner membrane shell (11).

7. The prefabricated room module according to claim 5, characterized in that, When the outer membrane shell (12) and the inner membrane shell (11) are at the same height, the bottom mold steel plate (21) is connected to the side wall of the inner membrane shell (11).

8. The prefabricated room module according to claim 2, characterized in that, The shear wall body (1) also includes: a first connector; One side of the shear wall steel frame (13) is fixedly connected to the inner membrane shell (11) through the first connector, and the other side of the shear wall steel frame (13) is fixedly connected to the outer membrane shell (12) through the first connector.

9. The prefabricated room module according to claim 1, characterized in that, The steel cage (131) includes: tie bars (1311) and two layers of steel mesh (1312) arranged opposite to each other and in parallel. The tie bar (1311) is disposed between the two layers of steel mesh (1312) and is used to tie the steel mesh (1312) on both sides; the two ends of the steel mesh (1312) are fixedly connected to the steel structure edge member (132).

10. The prefabricated room module according to claim 9, characterized in that, The steel mesh (1312) includes: horizontal steel bars and vertical joists; The multiple parallel horizontal steel bars and the multiple parallel vertical joists are fixedly connected to form the steel mesh (1312).

11. The prefabricated room module according to claim 1, characterized in that, The sleeve assembly (1323) includes: a steel column body (001) with multiple welding grooves (002) on its sidewall, and a pull-out resistant connection assembly (003); The pull-out resistant connecting component (003) is fitted onto the inner wall of the steel column body (001), and the pull-out resistant connecting component (003) and the steel column body (001) are welded and fixed at the welding groove (002).

12. The prefabricated room module according to claim 11, characterized in that, One side of the anti-pull-out connecting assembly (003) has a concave-convex shape to form a plurality of anti-pull-out structures extending along a preset direction. The side of the anti-pull-out connecting assembly (003) away from the anti-pull-out structure is attached to the inner wall of the steel column body (001). The preset direction has an angle with the axial direction of the steel column body (001).

13. The prefabricated room module according to claim 11, characterized in that, The pull-out resistant connection assembly (003) is a hollow columnar structure, including multiple crossbeams (004) extending along a preset direction; the welding groove (002) corresponds to at least a portion of the crossbeams (004), and the preset direction has an angle with the axial direction of the steel column body (001).

14. The prefabricated room module according to claim 11, characterized in that, The outer wall of the inner core column (1322) is provided with a protruding ridge (005) extending in a preset direction, and the preset direction is at an angle to the axial direction of the steel column body (001).

15. The prefabricated room module according to claim 1, characterized in that, The lower ends of the opposite side walls of the inner core column (1322) are provided with first insertion grooves (006), and the upper ends of the opposite side walls of the steel column (1321) are provided with second insertion grooves (007). The steel structure edge member (132) further includes: a plug plate (1324); the plug plate (1324) is used to insert into the first plug groove (006) and the second plug groove (007) so that the inner core column (1322) is fixedly connected to the steel column (1321).

16. The prefabricated room module according to claim 1, characterized in that, The inner core column (1322) has a positioning cone (008) at its top, and the inner wall of the sleeve assembly (1323) is provided with a positioning cavity (009) for accommodating the positioning cone (008).

17. The prefabricated room module according to claim 1, characterized in that, Limiting steel bars (016) are inserted into the outer wall surface of the apex corners of the inner core column (1322), and the limiting steel bars (016) are arranged along the extension direction of the diagonal line in the cross section of the inner core column (1322).

18. The prefabricated room module according to claim 1, characterized in that, Also includes: The connecting beam body (3) has a connecting beam cavity (30) for cast-in-place concrete. After concrete is poured into the connecting beam cavity (30), a connecting beam is formed. The geometry of the connecting beam is defined by the connecting beam body (3).

19. The prefabricated room module according to claim 18, characterized in that, The main body of the connecting beam (3) includes: a connecting beam membrane shell (31), a connecting beam steel cage (32), a steel plate at the bottom of the connecting beam (33), and a vertical keel (34) of the connecting beam; The two outer sides of the connecting beam steel cage (32) are fixedly connected to the vertical keel (34) of the connecting beam, and the connecting beam steel cage (32) is fixedly connected to the inside of the connecting beam membrane shell (31) through the vertical keel (34) of the connecting beam. The inside of the connecting beam membrane shell (31) is the connecting beam cavity (30). Both ends of the longitudinal direction of the reinforcing cage (32) of the connecting beam and both ends of the longitudinal direction of the bottom steel plate (33) of the connecting beam are fixedly connected to the shear wall body (1) connected to both ends of the connecting beam body (3), and the bottom steel plate (33) of the connecting beam is fixedly connected to the bottom of the vertical keel (34) of the connecting beam.

20. The prefabricated room module according to claim 19, characterized in that, The connecting beam body (3) further includes: a second connector; the connecting beam membrane shell (31) is fixedly connected to the vertical keel (34) of the connecting beam through the second connector.

21. The prefabricated room module according to claim 8 or 20, characterized in that, The first or second connector includes: a self-tapping screw, a bolt, or a rivet.

22. The prefabricated room module according to claim 1, characterized in that, Also includes: The bottom plate (4) is fixedly connected to the lower end of the shear wall body (1) at its edge, and the bottom plate (4) is arranged opposite to the top plate body (2).

23. The prefabricated room module according to claim 22, characterized in that, The base plate (4) includes: a steel frame (41) and / or a base plate concrete (42).

24. The prefabricated room module according to claim 23, characterized in that, The steel frame (41) includes: steel frame beams (411) and steel purlins (412), which are fixedly connected to form the steel frame (41) with a planar structure.

25. A modular building, characterized in that, include: At least one prefabricated room module (500) as described in any one of claims 1 to 24, and concrete poured on-site within the prefabricated room module (500) and / or poured on-site between adjacent prefabricated room modules (500).

26. The modular building according to claim 25, characterized in that, The connection between any of the prefabricated room modules (500) and the adjacent prefabricated room modules (500) on the same floor is a partial shear wall body, and the partial shear wall bodies at the connection between two adjacent prefabricated room modules (500) form a complete shear wall body (1).

27. The modular building according to claim 26, characterized in that, The partial shear wall body of any one of the two adjacent prefabricated room modules (500) on the same floor includes a single-sided membrane shell, and the partial shear wall body of the other prefabricated room module (500) includes a steel cage to be spliced ​​and another single-sided membrane shell fixedly connected to the steel cage to be spliced.

28. A modular building, characterized in that, include: At least two prefabricated room modules (500) as described in any one of claims 1 to 24, wherein each of the prefabricated room modules (500) is connected to an adjacent prefabricated room module (500) located directly below or above it via a steel structural edge member (132).

29. The modular building according to claim 28, characterized in that, The sleeve assembly (1323) of the steel structure edge member (132) of the prefabricated room module (500) is sleeved on the inner core column (1322) of the steel structure edge member (132) of the adjacent prefabricated room module (500) directly below it, and the sleeve assembly (1323) of the steel structure edge member (132) of the prefabricated room module (500) abuts against the top of the steel column (1321) of the steel structure edge member (132) of the adjacent prefabricated room module (500) directly below it.

30. The modular building according to claim 28, characterized in that, Vertical connecting steel bars (600) are provided inside the docking area of ​​the steel structure edge member (132) connecting two adjacent prefabricated room modules (500) to form a whole. After concrete is poured inside the docking area, the two adjacent prefabricated room modules (500) are connected into a whole.

31. A construction method for a modular building as described in any one of claims 25 to 30, characterized in that, include: All prefabricated room modules are placed in position by hoisting, and during and after the hoisting process, the prefabricated room modules are gradually formed into the modular building by pouring concrete.

32. The construction method for modular buildings according to claim 31, characterized in that, The process involves hoisting all prefabricated room modules into place, and during and after the hoisting process, casting concrete to gradually form the modular building from the placed prefabricated room modules. The prefabricated room modules are constructed floor by floor from bottom to top to build the modular building; The construction of the prefabricated room modules on each floor includes: The prefabricated room modules to be constructed are placed in place using hoisting equipment. Concrete is poured into the complete shear wall body of the prefabricated room module that has been placed in place to form a shear wall; After the shear wall bodies of all the prefabricated room modules in the floor have been formed by concrete pouring, concrete is poured into the top slab bodies of all the prefabricated room modules in the floor to form the top slab of the floor.

33. The construction method for modular buildings according to claim 32, characterized in that, The process of pouring concrete for the complete shear wall body in the prefabricated room module, which has been placed in position, to form a shear wall includes: For each prefabricated room module that is hoisted and placed, concrete is poured into the complete shear wall body of the prefabricated room module. When a partial shear wall body is fixedly connected at the connection point of two horizontally adjacent prefabricated room modules to form a complete shear wall body, concrete is poured into the complete shear wall body formed at the connection point. Alternatively, all the prefabricated room modules on the same floor can be hoisted and placed; the local shear wall bodies at the connection points of the horizontally adjacent prefabricated room modules can be fixedly connected to form a complete shear wall body; Concrete was poured for all complete shear wall structures within the aforementioned floor.

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