Prefabricated building module, concrete modular building and construction method

Abstract

The invention relates to the technical field of buildings, in particular to a prefabricated building module, a concrete modular building and a construction method.The prefabricated building module comprises a prefabricated floor slab and a plurality of prefabricated double-face laminated shear walls, and the prefabricated floor slab comprises a floor slab body and a floor slab steel reinforcement framework fixedly connected to the floor slab body; each prefabricated double-sided laminated shear wall comprises a concrete partition wall, a concrete stress wall formwork and a prefabricated wall steel reinforcement framework fixedly connected to the concrete stress wall formwork, and all the prefabricated double-sided laminated shear walls are in lap joint with the floor steel reinforcement framework through the corresponding prefabricated wall steel reinforcement framework. And concrete is poured at the lap joint positions of the prefabricated wall steel reinforcement frameworks and the floor steel reinforcement frameworks so that the prefabricated floor can be fixedly connected with the prefabricated double-face superimposed shear walls. The invention aims to provide a prefabricated building module, a concrete modular building and a construction method in order to solve at least one technical problem related in the background technology.

Description

Technical Field

[0001] The present application relates to the field of building technology, and in particular to a prefabricated building module, a concrete modular building and a construction method. Background Art

[0002] Traditional construction methods are difficult to meet the needs of high efficiency, environmental protection, and energy conservation. Prefabricated buildings improve construction efficiency and reduce construction pollution through standardized design, factory production, and on-site assembly. They are in line with the concept of green development and can effectively reduce the decline in the labor force and rising costs caused by an aging population. They can continue to promote the sustainable development of the construction industry.

[0003] Concrete modular construction is an advanced form of prefabricated construction. Compared with most prefabricated buildings, which are still at the stage of "component assembly", that is, the PC components are prefabricated and then hoisted and assembled on site, concrete modular construction is an efficient and reliable construction method that prefabricates building modules in the factory and then quickly assembles them into buildings on site. It has the advantages of short construction period, good quality control, flexible design, environmental protection and energy saving, so it is widely used in various construction projects such as residential, commercial, and educational.

[0004] At present, most of the core components of concrete modular buildings are prefabricated solid shear walls. This type of shear wall structure has a long production period, is heavy overall, and has a high cost, which greatly increases labor costs and material costs. At the same time, although most of the construction of concrete modular buildings is completed in the factory, there are still a lot of construction processes such as concrete reinforcement, bolt connection and template engineering during on-site installation, and the improvement of construction speed and construction quality is limited. In addition, on-site construction personnel are involved in three-dimensional space off-plane operations, which are difficult and dangerous to construct. Summary of the invention

[0005] The purpose of the present application is to provide a prefabricated building module, a concrete modular building and a construction method in view of at least one technical problem involved in the background technology.

[0006] In order to achieve the above objectives, this application adopts the following technical solutions:

[0007] One aspect of the present application provides a prefabricated building module, including a prefabricated floor and a plurality of prefabricated double-sided composite shear walls, wherein the prefabricated floor includes a floor body and a floor steel frame fixedly connected to the floor body, and the prefabricated double-sided composite shear wall includes a concrete partition wall, a concrete load-bearing wall formwork, and a prefabricated wall steel frame fixedly connected to the concrete load-bearing wall formwork, each of the prefabricated double-sided composite shear walls is overlapped with the floor steel frame through its own prefabricated wall steel frame, and concrete is poured at the position where each prefabricated wall steel frame overlaps with the floor steel frame to fix the prefabricated floor with each of the prefabricated double-sided composite shear walls, and the concrete partition wall is fixedly connected to the concrete wall formwork.

[0008] Optionally, the prefabricated building module provided in the present application further includes a first aluminum formwork, which is installed at a bottom horizontal edge position of the prefabricated double-sided composite shear wall.

[0009] Optionally, the prefabricated building module provided in the present application also includes a corner wall side column, which is arranged at the right angle end of the prefabricated floor slab, and the corner wall side column is connected to the prefabricated double-sided composite shear wall. The prefabricated building module also includes a second aluminum formwork, which is installed on the corner wall side column.

[0010] Optionally, the prefabricated building module provided in the present application also includes a hidden column of the edge component at the wing wall, which is connected to the prefabricated double-sided composite shear wall. The prefabricated building module also includes a third aluminum formwork, which is installed on the hidden column of the edge component at the wing wall.

[0011] Optionally, the prefabricated building module provided in the present application further includes a first chord beam and a second chord beam, wherein the first chord beam is fixed to the outer wall of the second aluminum formwork, and the second chord beam is fixed to the outer wall of the third aluminum formwork.

[0012] Optionally, the prefabricated building module provided in the present application also includes annular connecting reinforcement, the corner wall side columns include side column stirrups, the prefabricated wall steel bar skeleton and the side column stirrups are overlapped with the annular connecting reinforcement, and the prefabricated wall steel bar skeleton and the side column stirrups are connected to the annular connecting reinforcement through concrete.

[0013] A concrete modular building comprises at least one prefabricated building module provided by the present application.

[0014] Optionally, the prefabricated building module includes a hidden column of an edge component at the wing wall, and the hidden column of the edge component at the wing wall includes connecting steel bars. The connecting steel bars of one of two adjacent prefabricated building modules in the horizontal direction are overlapped with the connecting steel bars of the other, and concrete is poured between the two prefabricated building modules.

[0015] Optionally, the prefabricated building module includes a corner wall side column and a hidden column at the edge component of the wing wall, the corner wall side column includes a first vertical steel bar, the hidden column at the edge component of the wing wall includes a second vertical steel bar, and the first vertical steel bar of one of the two adjacent prefabricated building modules arranged in the vertical direction is overlapped or mechanically connected with the first vertical steel bar of the other, and the second vertical steel bar of one is overlapped or mechanically connected with the second vertical steel bar of the other.

[0016] The third aspect of the present application provides a construction method for manufacturing the concrete modular building provided by the present application, the method comprising:

[0017] The two-layer concrete wall formwork is tied and cast with the prefabricated wall reinforcement skeleton, and the floor slab body is tied and cast with the floor slab reinforcement skeleton;

[0018] Overlapping the prefabricated wall steel frame and the floor slab steel frame, pouring concrete at the overlapping position, and transporting the concrete to the construction site after reaching a preset strength;

[0019] During the on-site construction stage, the bottom horizontal edge position of the prefabricated double-sided composite shear wall is sealed with a first aluminum template, the corner wall side column is sealed with a second aluminum template, and the edge component hidden column at the wing wall is sealed with a third aluminum template, and then concrete is poured;

[0020] Hoist the upper prefabricated building module, ensure that the first vertical steel bar of the lower prefabricated building module extends into the inner cavity of the corner wall side column of the upper prefabricated building module, and ensure that the second vertical steel bar of the lower prefabricated building module extends into the inner cavity of the hidden column of the edge member at the wing wall of the upper prefabricated building module. After installation in place, continue to hoist another upper prefabricated building module in the same way to assemble into the skeleton of the upper building layer;

[0021] Pour the concrete in the columns, the concrete in the walls and the top of the precast floor slabs in sequence according to the building layer to complete the structural construction of the current building layer;

[0022] When the two prefabricated building modules are installed in place, the two prefabricated building modules adjacent to each other in the horizontal direction are fixedly connected by wall formwork tension bolts;

[0023] Lap or mechanically connect the first vertical steel bars, overlap or mechanically connect the second vertical steel bars, and overlap or mechanically connect the third vertical steel bars between two adjacent prefabricated building modules in the vertical direction, and pour concrete;

[0024] Repeat the steps of overlapping or mechanically connecting the first vertical steel bars, overlapping or mechanically connecting the second vertical steel bars, and overlapping or mechanically connecting the third vertical steel bars between two adjacent prefabricated building modules in the vertical direction, and pouring concrete until the entire building is completed.

[0025] The technical solution provided by this application can achieve at least one of the following beneficial effects:

[0026] The prefabricated building modules, concrete modular buildings and construction methods provided by the present application adopt prefabricated double-sided composite shear wall structures and prefabricated floor slabs. When manufactured in the factory, the prefabricated double-sided composite shear wall structures can bind the two layers of concrete load-bearing wall molds and the prefabricated wall steel reinforcement skeleton as a whole for pouring connection, and the prefabricated floor slabs are connected by pouring after binding the prefabricated concrete slabs and the floor slab steel reinforcement skeleton as a whole. This can reduce the dead weight of the prefabricated building modules, make full use of materials and reduce costs; the prefabricated wall steel reinforcement skeleton can be used as a tensioning reinforcement for connecting the two layers of concrete load-bearing wall molds, and the floor slab steel reinforcement skeleton can be used as a connecting steel reinforcement skeleton between the prefabricated floor slab and the cast-in-place concrete on the top of the prefabricated floor slab on site.

[0027] The additional technical features and advantages of the present application will be more clearly explained in the following description, or can be understood through the specific practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the specific implementation methods of the present application, the following is a brief introduction to the drawings required for the description of the specific implementation methods. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 It is a three-dimensional structural schematic diagram from one perspective of an implementation method of a prefabricated building module provided in an embodiment of the present application;

[0030] Figure 2 It is a three-dimensional structural schematic diagram from another perspective of an implementation manner of a prefabricated building module provided in an embodiment of the present application;

[0031] Figure 3 It is a three-dimensional structural schematic diagram from one perspective of another implementation manner of a prefabricated building module provided in an embodiment of the present application;

[0032] Figure 4 is a three-dimensional structural schematic diagram from another perspective of another implementation manner of a prefabricated building module provided in an embodiment of the present application;

[0033] Figure 5It is a schematic diagram of a top view of an implementation of a prefabricated building module provided in an embodiment of the present application;

[0034] Figure 6 is a schematic diagram of a top view of another implementation of a prefabricated building module provided in an embodiment of the present application;

[0035] Figure 7 It is a partial structural schematic diagram of an implementation method of a prefabricated building module provided in an embodiment of the present application;

[0036] Figure 8 It is a partial structural schematic diagram of another implementation manner of a prefabricated building module provided in an embodiment of the present application;

[0037] Fig. 9 It is a schematic diagram of a top view of a corner wall position of an implementation method of a prefabricated building module provided in an embodiment of the present application;

[0038] Fig.10 It is a schematic diagram of a top view of a corner wall position of another implementation manner of a prefabricated building module provided in an embodiment of the present application;

[0039] Fig.11 It is a schematic diagram of the top view of the structure of the non-edge component hidden column position of an implementation method of a prefabricated building module provided in an embodiment of the present application;

[0040] Fig.12 It is a top view structural diagram of the position of the hidden column of the non-edge component of another implementation manner of a prefabricated building module provided in an embodiment of the present application;

[0041] Fig.13 It is a top view structural diagram of the position of the hidden column of the edge component of the wing wall of an implementation manner of a prefabricated building module provided in an embodiment of the present application;

[0042] Fig.14 It is a top view structural schematic diagram of the position of the hidden column of the edge component of the wing wall of another implementation manner of a prefabricated building module provided in an embodiment of the present application;

[0043] Fig.15 It is a schematic diagram of a vertical connecting reinforcement binding connection structure of a side column at a corner wall of an implementation manner of a prefabricated building module provided in an embodiment of the present application;

[0044] Fig.16 It is a schematic diagram of a vertical connecting reinforcement binding structure of an edge component hidden column position of a wing wall edge component of an implementation manner of a prefabricated building module provided in an embodiment of the present application;

[0045] Fig.17It is a schematic diagram of the vertical connecting reinforcement binding structure of non-edge component hidden columns of an implementation method of a prefabricated building module provided in an embodiment of the present application;

[0046] Fig.18 It is a partial structural schematic diagram of the connection between two prefabricated building modules provided by an embodiment of the present application that are adjacent in the horizontal direction;

[0047] Fig.19 It is a partial structural schematic diagram of the connection between two prefabricated building modules provided by an embodiment of the present application that are adjacent in the vertical direction;

[0048] Fig. 20 It is a flow chart of a construction method provided in an embodiment of the present application.

[0049] Reference numerals:

[0050] 10. Floor slab body; 20. Concrete load-bearing wall form; 21. Concrete non-load-bearing wall form; 30. Tension bolts; 41. First chord beam; 42. Second chord beam; 51. First aluminum formwork; 52. Second aluminum formwork; 53. Third aluminum formwork; 61. First vertical steel bar; 62. Second vertical steel bar; 63. Third vertical steel bar; 70a. First steel bar truss; 70b. Second steel bar truss; 71. Oblique web reinforcement; 72. Upper and lower chord steel bars; 90a. First steel bar welded mesh; 90b. Second steel bar Rebar welded mesh; 91. Rebar welded mesh longitudinally connecting the steel bars; 92. Rebar welded mesh transversely connecting the steel bars; 93. Rebar welded mesh vertically connecting the steel bars; 100. Concrete partition wall; 111. Non-edge component hidden column stirrups; 112. Side column stirrups; 113. Edge component hidden column stirrups; 120. Circumferential connecting bars; 140. Connection; 150. Tension bolts; 160. Cast-in-place shear wall; 170. Waterproof rubber strip; 180. Overlap steel bars; 190. Cast-in-place concrete floor slab; 200. Concrete partition wall. DETAILED DESCRIPTION

[0051] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0052] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0053] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0054] like Figures 1 to 19 As shown, one aspect of the present application provides a prefabricated building module, including a prefabricated floor and a plurality of prefabricated double-sided composite shear walls, wherein the prefabricated floor includes a floor body 10 and a floor steel frame fixedly connected to the floor body 10, and the prefabricated double-sided composite shear wall includes a concrete partition wall 100, a concrete load-bearing wall form 20 and a prefabricated wall steel frame fixedly connected to the concrete load-bearing wall form 20, each of the prefabricated double-sided composite shear walls is overlapped with the floor steel frame through its own prefabricated wall steel frame, and concrete is poured at the overlap position of each prefabricated wall steel frame and the floor steel frame to fix the prefabricated floor with each of the prefabricated double-sided composite shear walls, and the concrete partition wall 100 is fixedly connected to the concrete load-bearing wall form 20. In the embodiment of the present application, the concrete load-bearing wall form 20 can also be referred to as a prefabricated part of the concrete wall form; a steel skeleton is provided in the concrete partition wall 100, and a steel skeleton is also provided in the concrete load-bearing wall form 20, and the steel skeleton in the concrete partition wall 100 is fixedly connected to the steel skeleton in the concrete load-bearing wall form 20. Preferably, the prefabricated building module provided in the embodiment of the present application also includes a concrete non-load-bearing wall form 21, and the concrete non-load-bearing wall form 21 and the concrete load-bearing wall form 20 are arranged parallel to each other, and the edge component hidden column at the wing wall and the concrete partition wall 200 are all connected to the concrete non-load-bearing wall form 21.

[0055] The prefabricated building module provided by the present application adopts a prefabricated double-sided composite shear wall structure and a prefabricated floor slab. When manufactured in the factory, the prefabricated double-sided composite shear wall structure can tie the two-layer concrete load-bearing wall formwork 20 with the prefabricated wall steel reinforcement skeleton as a whole for pouring and connection. The prefabricated floor slab is connected by tying the prefabricated concrete slab and the floor slab steel reinforcement skeleton as a whole and then pouring and connecting. This can reduce the dead weight of the prefabricated building module, make full use of materials, and reduce costs; the prefabricated wall steel reinforcement skeleton can be used as a connecting reinforcement for connecting the two-layer concrete load-bearing wall formwork 20, and the floor slab steel reinforcement skeleton can be used as a connecting steel reinforcement skeleton between the prefabricated floor slab and the cast-in-place concrete on the top of the prefabricated floor slab on site. The cast-in-place concrete on the top of the prefabricated floor slab on site will form a cast-in-place concrete floor slab 190. The present invention can conditionally realize in-plane operation and reduce damage to integrated decoration pipelines, which is more beneficial to the modular building construction process.

[0056] In the embodiment of the present application, the floor slab steel bar skeleton can be a first steel bar truss 70a or a first steel bar welded mesh 90a, and the prefabricated wall steel bar skeleton can be a second steel bar truss 70b or a second steel bar welded mesh 90b, the second steel bar truss 70b includes oblique web reinforcement 71 and upper and lower chord reinforcements 72, and the second steel bar welded mesh 90b includes longitudinal connecting steel bars 91 of the steel bar welded mesh, transverse connecting steel bars 92 of the steel bar welded mesh, and vertical connecting steel bars 93 of the steel bar welded mesh.

[0057] Optionally, the prefabricated building module provided in the embodiment of the present application further includes a first aluminum template 51, which is installed at the bottom horizontal edge of the prefabricated double-sided composite shear wall. At the bottom horizontal edge of the prefabricated double-sided composite shear wall (i.e., the joint), the first aluminum template 51 can be used to improve the stability and bearing capacity of the module unit joint. The first aluminum template 51 is reusable and made of renewable materials, which is in line with the concept of green building development.

[0058] Optionally, the prefabricated building module provided in the embodiment of the present application also includes a corner wall side column, which is arranged at the right angle end of the prefabricated floor slab, and the corner wall side column is connected to the prefabricated double-sided composite shear wall. The prefabricated building module also includes a second aluminum formwork 52, which is installed on the corner wall side column.

[0059] The use of the second aluminum formwork 52 at the corner wall position can improve the stability and bearing capacity of the module unit joint. The second aluminum formwork 52 is reusable and renewable material, which is in line with the concept of green building development.

[0060] Optionally, the prefabricated building module provided in the embodiment of the present application also includes a hidden column of the edge component at the wing wall, which is connected to the prefabricated double-sided composite shear wall. The prefabricated building module also includes a third aluminum formwork 53, which is installed on the hidden column of the edge component at the wing wall.

[0061] The use of the third aluminum formwork 53 at the wing wall position can improve the stability and bearing capacity of the module unit joint. The third aluminum formwork 53 is reusable and renewable material, which is in line with the concept of green building development.

[0062] Optionally, the prefabricated building module provided in the embodiment of the present application further includes a first beam chord 41 and a second beam chord 42, wherein the first beam chord 41 is fixed to the outer wall of the second aluminum formwork 52, and the second beam chord 42 is fixed to the outer wall of the third aluminum formwork 53. The first beam chord 41 and the second beam chord 42 can achieve the purpose of using form resistance and pretension to resist external loads only by fixing at the upper and lower ends, so as to improve the strength of the corresponding aluminum formwork, thereby improving the overall strength of the prefabricated building module.

[0063] The prefabricated building module provided in the embodiment of the present application further includes tension bolts 30 installed on the first aluminum formwork 51 , and the tension bolts 30 are arranged perpendicular to the first aluminum formwork 51 .

[0064] Optionally, the prefabricated building module provided in the embodiment of the present application further includes an annular connecting bar 120, the corner wall side column includes a side column stirrup 112, the prefabricated wall steel reinforcement skeleton and the side column stirrup 112 are both overlapped with the annular connecting bar 120, and the prefabricated wall steel reinforcement skeleton and the side column stirrup 112 are both connected to the annular connecting bar 120 through concrete. That is, the prefabricated wall steel reinforcement skeleton and the side column stirrup 112 are both overlapped with the annular connecting bar 120 and then cast on site with cast-in-place concrete.

[0065] Another aspect of the present application provides a concrete modular building, comprising at least one prefabricated building module provided by an embodiment of the present application.

[0066] The concrete modular building provided by the present application adopts the prefabricated building modules provided by the present application, and adopts prefabricated double-sided composite shear wall structures and prefabricated floor slabs. When manufactured in the factory, the prefabricated double-sided composite shear wall structure can bind the two layers of concrete load-bearing wall molds 20 with the prefabricated wall steel reinforcement skeleton as a whole for pouring connection, and the prefabricated floor slabs are connected by pouring after binding the prefabricated concrete slabs and the floor slab steel reinforcement skeleton as a whole. This can reduce the self-weight of the prefabricated building modules, make full use of materials, and reduce costs; the prefabricated wall steel reinforcement skeleton can be used as a tensioning reinforcement connecting the two layers of concrete load-bearing wall molds 20, and the floor slab steel reinforcement skeleton can be used as a connecting steel reinforcement skeleton between the prefabricated floor slab and the cast-in-place concrete on the top of the prefabricated floor slab on site.

[0067] Optionally, the prefabricated building module includes a hidden column of an edge member at the wing wall, and the hidden column of the edge member at the wing wall includes a connecting steel bar. The connecting steel bar of one of the two adjacent prefabricated building modules in the horizontal direction is overlapped with the connecting steel bar of the other, and concrete is poured between the two prefabricated building modules. That is to say, when two prefabricated building modules arranged horizontally are adjacent, the two ends of the adjacent partition walls are reinforced on both sides by the hidden column of the edge member at the wing wall, and the middle part is connected to form a whole by pouring a cast-in-place shear wall 160, and a waterproof rubber strip 170 is arranged between adjacent concrete partition walls 200. Preferably, after the two prefabricated building modules are installed in place, the wall molds of the two adjacent prefabricated building modules are fixedly connected by tension bolts 150.

[0068] Optionally, the prefabricated building module includes a corner wall side column and a wing wall edge member hidden column, the corner wall side column includes a first vertical steel bar 61, the wing wall edge member hidden column includes a second vertical steel bar 62, and the first vertical steel bar 61 of one of the two adjacent prefabricated building modules arranged in the vertical direction is overlapped or mechanically connected with the first vertical steel bar 61 of the other, and the second vertical steel bar 62 of one is overlapped or mechanically connected with the second vertical steel bar 62 of the other. In other words, this overlap or mechanical connection allows the first vertical steel bars 61 of the two adjacent prefabricated building modules arranged in the vertical direction to extend continuously, and the second vertical steel bars 62 to extend continuously. Preferably, edge member hidden column stirrups 113 are installed on the second vertical steel bars 62. In the embodiment of the present application, a non-edge component hidden column is arranged on the prefabricated double-sided composite shear wall, and the non-edge component hidden column includes a third vertical steel bar 63. The third vertical steel bars 63 in the two adjacent prefabricated building modules arranged in the vertical direction are continuous, and the two upper and lower adjacent third vertical steel bars 63 are overlapped or mechanically connected. Cast-in-place concrete is used during on-site construction. Preferably, non-edge component hidden column stirrups 111 are installed on the non-edge component hidden column.

[0069] like Fig. 20 As shown, the third aspect of the present application provides a construction method for manufacturing the concrete modular building provided in the embodiment of the present application, the method comprising:

[0070] Step 010: Bind and cast the two-layer concrete load-bearing wall formwork 20 and the prefabricated wall steel frame into one, and bind and cast the floor slab body 10 and the floor slab steel frame into one;

[0071] Step 020: Overlap the prefabricated wall steel frame and the floor slab steel frame, pour concrete at the overlapped position, and transport the concrete to the construction site after reaching a preset strength;

[0072] Step 030: During the on-site construction stage, the bottom horizontal edge position of the prefabricated double-sided composite shear wall is sealed with the first aluminum template 51, the corner wall side column is sealed with the second aluminum template 52, and the edge component hidden column of the wing wall is sealed with the third aluminum template 53, and then concrete is poured;

[0073] Step 040: Hoist the upper prefabricated building modules, ensure that the vertical connection steel bars of the lower prefabricated building modules extend into the inner cavity of the corner wall side columns and the edge component hidden columns of the wing wall of the upper prefabricated building modules, and after installation in place, continue to hoist the upper prefabricated building modules in the same way to assemble into the skeleton of the upper building layer;

[0074] Step 050: Cast concrete in columns, concrete in walls, and cast-in-place concrete on the top of prefabricated floor slabs in sequence according to the building layers to complete the structural construction of the current building layer;

[0075] Step 060: After the two prefabricated building modules are installed in place, the two prefabricated building modules adjacent to each other in the horizontal direction are fixedly connected by the wall formwork tension bolts 30;

[0076] Step 070: overlap or mechanically connect the first vertical steel bars 61 between two adjacent prefabricated building modules in the vertical direction, overlap or mechanically connect the second vertical steel bars 62, and overlap or mechanically connect the third vertical steel bars 63, and pour concrete;

[0077] Step 080: Repeat the steps of overlapping or mechanically connecting the first vertical reinforcement 61, the second vertical reinforcement 62, and the third vertical reinforcement 63 between two adjacent prefabricated building modules in the vertical direction, and pouring concrete until the entire building is completed. The overlapping or mechanical connection forms a connection portion 140; the overlapping method can be implemented by using overlapping reinforcement 180.

[0078] The prefabricated building modules, concrete modular buildings and construction methods provided in this application can realize in-plane operations and reduce damage to integrated decoration pipelines, which is more beneficial to the modular building construction process.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. Prefabricated building module, characterized in that, It comprises a prefabricated floor slab and a plurality of prefabricated double-sided composite shear walls, wherein the prefabricated floor slab comprises a floor slab main body and a floor slab steel bar skeleton fixedly connected to the floor slab main body, and the prefabricated double-sided composite shear wall comprises a concrete partition wall, a concrete load-bearing wall formwork and a prefabricated wall steel bar skeleton fixedly connected to the concrete load-bearing wall formwork, and each of the prefabricated double-sided composite shear walls is overlapped with the floor slab steel bar skeleton through its own prefabricated wall steel bar skeleton, and concrete is poured at the overlap position of each prefabricated wall steel bar skeleton and the floor slab steel bar skeleton to fix the prefabricated floor slab with each of the prefabricated double-sided composite shear walls, and the concrete partition wall is fixedly connected to the concrete load-bearing wall formwork.

2. The prefabricated building module according to claim 1, characterized in that It also includes a first aluminum template, which is installed at the bottom horizontal edge position of the prefabricated double-sided composite shear wall.

3. The prefabricated building module according to claim 2, characterized in that: It also includes a corner wall column, which is arranged at the right angle end of the prefabricated floor slab and is connected to the prefabricated double-sided composite shear wall. The prefabricated building module also includes a second aluminum formwork, which is installed on the corner wall column.

4. The prefabricated building module according to claim 3, characterized in that: It also includes a hidden column of the edge component at the wing wall, which is connected to the prefabricated double-sided composite shear wall. The prefabricated building module also includes a third aluminum template, which is installed on the hidden column of the edge component at the wing wall.

5. The prefabricated building module according to claim 4, characterized in that: The invention also includes a first chord beam and a second chord beam, wherein the first chord beam is fixed to the outer wall of the second aluminum template, and the second chord beam is fixed to the outer wall of the third aluminum template.

6. The prefabricated building module according to claim 4 or 5, characterized in that: It also includes annular connecting bars, the corner wall side columns include side column stirrups, the prefabricated wall steel frame and the side column stirrups are overlapped with the annular connecting bars, and the prefabricated wall steel frame and the side column stirrups are connected to the annular connecting bars through concrete.

7. Concrete modular building, characterized in that, Comprising at least one prefabricated building module according to any one of claims 1 to 6.

8. The concrete modular building according to claim 7, characterized in that: The prefabricated building module includes a hidden column at the edge component of the wing wall, and the hidden column at the edge component of the wing wall includes connecting steel bars. The connecting steel bars of one of two adjacent prefabricated building modules in the horizontal direction are overlapped with the connecting steel bars of the other, and concrete is poured between the two prefabricated building modules.

9. The concrete modular building according to claim 7, characterized in that: The prefabricated building module includes a corner wall side column and a hidden column at the edge component of the wing wall, the corner wall side column includes a first vertical steel bar, the hidden column at the edge component of the wing wall includes a second vertical steel bar, and the first vertical steel bar of one of the two adjacent prefabricated building modules arranged in the vertical direction is overlapped or mechanically connected with the first vertical steel bar of the other, and the second vertical steel bar of one is overlapped or mechanically connected with the second vertical steel bar of the other.

10. A construction method, characterized in that: For manufacturing a concrete modular building as claimed in any one of claims 7 to 9, the method comprises: The two-layer concrete wall formwork is tied and cast with the prefabricated wall reinforcement skeleton, and the floor slab body is tied and cast with the floor slab reinforcement skeleton; Overlapping the prefabricated wall steel frame and the floor slab steel frame, pouring concrete at the overlapping position, and transporting the concrete to the construction site after reaching a preset strength; During the on-site construction stage, the bottom horizontal edge position of the prefabricated double-sided composite shear wall is sealed with a first aluminum template, the corner wall side column is sealed with a second aluminum template, and the edge component hidden column at the wing wall is sealed with a third aluminum template, and then concrete is poured; Hoist the upper prefabricated building modules, ensure that the first vertical steel bars of the lower prefabricated building modules extend into the inner cavity of the corner wall side column of the upper prefabricated building modules, and ensure that the second vertical steel bars of the lower prefabricated building modules extend into the inner cavity of the hidden column of the edge member at the wing wall of the upper prefabricated building modules. After installation in place, continue to hoist the upper prefabricated building modules in the same way to assemble into the skeleton of the upper building layer; Pour the concrete in the columns, the concrete in the walls and the top of the precast floor slabs in sequence according to the building layer to complete the structural construction of the current building layer; When the two prefabricated building modules are installed in place, the two prefabricated building modules adjacent to each other in the horizontal direction are fixedly connected by wall formwork tension bolts; Lap or mechanically connect the first vertical steel bars, overlap or mechanically connect the second vertical steel bars, and overlap or mechanically connect the third vertical steel bars between two adjacent prefabricated building modules in the vertical direction, and pour concrete; Repeat the steps of overlapping or mechanically connecting the first vertical steel bars, overlapping or mechanically connecting the second vertical steel bars, and overlapping or mechanically connecting the third vertical steel bars between two adjacent prefabricated building modules in the vertical direction, and pouring concrete until the entire building is completed.

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