Connecting structure of bearing-enclosure integrated wallboard

Abstract

The invention relates to the field of modular buildings, in particular to a bearing-enclosure integrated wallboard connecting structure which comprises wallboards, force bearing parts and connecting assemblies. The connecting assembly is used for detachably connecting a plurality of force bearing parts; the force bearing piece comprises a horizontal force bearing piece and a vertical force bearing piece; the number of the vertical force-bearing pieces is four, and the vertical force-bearing pieces are arranged in a rectangular shape. The horizontal force bearing parts are arranged between the vertical force bearing parts; the force bearing pieces are connected through the connecting assemblies to form a frame module; when the upper frame module and the lower frame module or the left frame module and the right frame module are connected, the horizontal force bearing pieces or the vertical force bearing pieces arranged side by side are connected through connecting assemblies. The problems that no connection exists between adjacent beams and columns between traditional steel modules, and cooperative work cannot be achieved are solved; the problems that due to the fact that adjacent beams and columns between steel modules cannot work cooperatively, the structural rigidity is low, the anti-seismic performance is poor, the steel consumption is large, and the applicable height of the structure is low are solved.

Description

Technical Field

[0001] The invention relates to the field of modular buildings, and in particular to a connection structure of a load-bearing-enclosing integrated wall panel. Background Art

[0002] The prior art has the following deficiencies: (1) The mechanical properties of traditional steel module connection nodes are weak. They can only be simplified as hinges during design and calculation, which is not conducive to forming a bending-resistant frame. The seismic performance of the structure is weak, which restricts its development in multi-story buildings and high-intensity areas. (2) Although a few new steel module connection nodes can achieve semi-rigid or rigid connections, there are problems such as lack of operating space for node installation, weak horizontal connection between modules, and high installation accuracy requirements. (3) There is a certain distance between adjacent components of traditional steel modules and lack of effective constraints, which makes the structure more discrete, weaker in seismic resistance, poorer overall performance, lower redundancy, and poorer robustness. (4) Channel steel beams (beams in the middle of the building) or I-beams (beams at the edge of the building) are often used in existing steel module buildings, and finally a "W"-shaped section is formed to achieve the coordinated work of adjacent beams. However, the stress performance of channel steel beams is poor under single module conditions and it is difficult to adapt to complex transportation and lifting conditions. (5) Channel steel columns and columns with different opening sections are often used in existing steel module buildings, and then bolted together to form composite columns with better stress performance. However, there is also the problem of poor stress performance when using a single module. Summary of the invention

[0003] The object of the present invention is to provide a detachable reinforced steel structure module building to solve at least one technical problem existing in the prior art.

[0004] This application is a divisional application with publication number CN118704623A, publication date 2024.09.27, and invention name "A detachable reinforced steel structure modular building".

[0005] In order to solve the above technical problems, the present invention provides a detachable reinforced steel structure module building, comprising a wall panel, a load-bearing member and a connecting assembly; the connecting assembly is used to detachably connect multiple load-bearing members; the load-bearing members include horizontal load-bearing members and vertical load-bearing members; the vertical load-bearing members are four and arranged in a rectangular shape; the horizontal load-bearing members are arranged between the vertical load-bearing members; the load-bearing members are connected by a connecting assembly to form a frame module; when two frame modules are connected, the horizontal load-bearing members or vertical load-bearing members arranged side by side are connected by a connecting assembly; the wall panel is arranged between the load-bearing members that are enclosed and surrounded; The wall panel is provided with an operating groove for providing an operating space when the connecting assembly is disassembled.

[0006] As a further solution of the present application, the connecting assembly includes a vertical plate and a fastening bolt; the vertical plates are respectively arranged on adjacent load-bearing members; the vertical plates are provided with connecting holes, and their diameters are adapted to the fastening bolts; the load-bearing members fasten the vertical plates on adjacent load-bearing members through the connecting holes, thereby realizing the connection of adjacent load-bearing members to form a superimposed load-bearing member.

[0007] As a further solution of the present application, the connection assembly also includes a first connection portion welded to the load-bearing member; the vertical plate is connected to the load-bearing member via the first connection portion.

[0008] As a preferred solution of the present application, the first connecting part is a hoop, a sleeve or a steel plate.

[0009] As a further solution of the present application, a fixing groove is provided on the first connecting portion; a fixing protrusion is provided on the vertical plate, and its shape is adapted to the fixing groove; the fixing protrusion is embedded in the fixing groove to realize the connection between the vertical plate and the first connecting portion.

[0010] As a preferred solution of the present application, the connecting components are arranged at both ends of the load-bearing member and in the bending and shearing area, with a spacing of less than 2m; the height of the connecting components is the smaller value of the height and width of the load-bearing member. .

[0011] As a further solution of the present application, the connecting assembly also includes a second connecting part and a single-sided bolt; the second connecting part is plate-shaped and has a through hole thereon; a screw hole is provided on the side wall of the connection between adjacent load-bearing members, and its position is opposite to the position of the through hole; the single-sided bolt passes through the through hole provided on the second connecting part, enters the screw hole on the load-bearing member and tightens the connection, thereby strengthening the connection between two adjacent load-bearing members.

[0012] As a preferred solution of the present application, the second connecting portion is in a rectangular, cross or T-shaped shape.

[0013] As a further solution of the present application, stiffening ribs are arranged between the load-bearing members.

[0014] As a further solution of the present application, the bolts are 10.9 grade M30 high-strength bolts, and the other components of the connecting assembly except the bolts are made of Q355 or Q345 steel.

[0015] As a further solution of the present application, a pad is arranged between the vertical plates; a circular hole is arranged on the pad, and a diameter of the circular hole matches that of the fastening bolt; and the fastening bolt passes through the pad through the circular hole.

[0016] As a further solution of the present application, the fastening bolt includes four nuts, two of which are arranged at both ends, and the other two nuts are arranged in the middle; a pre-tension is set between the end nut and the nut close to the end.

[0017] By adopting the above technical solution, the present invention has the following beneficial effects: (1) The problem that the connection nodes between traditional steel modules are weak in rigidity and can only be simplified as hinges during design is solved; the weak nodes result in the stacked box module structure being able to only build module structures with three floors or less, and being unable to build multi-story and high-rise buildings. Multi-story and high-rise module buildings require additional lateral force resistance structures, which increases costs. (2) The problem that adjacent beams and columns between traditional steel modules are not connected and cannot work together is solved; adjacent beams and columns between steel modules cannot work together, resulting in weak structural rigidity, poor seismic performance, large steel consumption, and low applicable height of the structure, which restricts the development of steel module buildings to multi-story and high-rise buildings. (3) The problem of the lack of working surface during the installation of existing steel module buildings is solved; especially at the middle node, where eight modules intersect, there is a lack of construction operation surface when installing the last module, making it difficult to install the node. (4) It solves the problem that existing steel modular buildings are difficult to achieve both convenient construction and installation and excellent mechanical properties. When existing steel modular buildings are prefabricated in factories, the steel modular unit structure system, enclosure system, equipment pipelines and interior decoration must be integrated at the same time, so as to maximize the transfer of on-site work to the factory, forming a fully functional modular box to facilitate on-site construction. On the other hand, the modular box is closed on all sides, which makes it difficult to set connectors between beams and columns between structural modules to enhance collaborative workability, and it is difficult to improve the mechanical properties of modular buildings. (5) It solves the problem of high cost of existing steel modular buildings. (6) It solves the problem that when the direction of bolt pretension is the same as the direction of component force, the bearing capacity of the component is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the detachable reinforced steel structure module of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the connection between the detachable reinforced steel structure modules; Figure 3 A schematic diagram of a three-dimensional structure of a building frame assembled from detachable reinforced steel structure modules; Figure 4 It is a three-dimensional structural diagram of a detachable reinforced steel structure module building; Figure 5 A three-dimensional structural schematic diagram of a connection method between a detachable reinforced steel structure module building connection component and a load-bearing member; Figure 6 A three-dimensional structural schematic diagram of a connection method between a detachable reinforced steel structure module building connection component and a load-bearing member; Figure 7 It is a three-dimensional structural schematic diagram of another connection method between the detachable reinforced steel structure module building connection assembly and the load-bearing member; Figure 8 It is a three-dimensional structural schematic diagram of another connection method between the detachable reinforced steel structure module building connection assembly and the load-bearing member; Fig. 9 It is a three-dimensional structural schematic diagram of another connection method between the detachable reinforced steel structure module building connection assembly and the load-bearing member; Fig.10 It is a schematic diagram of a three-dimensional structure in which two load-bearing members in a detachable reinforced steel structure module building are connected by a connecting assembly; Fig.11 It is a schematic diagram of a three-dimensional structure in which four load-bearing members in a detachable reinforced steel structure module building are connected by connecting components; Fig.12 It is a schematic diagram of a three-dimensional structure in which multiple load-bearing members in a detachable reinforced steel structure module building are connected inside the building through connecting components; Fig.13 It is a schematic diagram of a three-dimensional structure in which multiple load-bearing members in a detachable reinforced steel structure module building are connected at the edge of the building through a connecting assembly; Fig.14 It is a three-dimensional structural schematic diagram of the connection components in the detachable reinforced steel structure module building; Fig.15 It is a three-dimensional structural schematic diagram of the connection components in the detachable reinforced steel structure module building; Fig.16 It is a three-dimensional structural schematic diagram of the connection components in the detachable reinforced steel structure module building; Fig.17 It is a schematic diagram of a three-dimensional structure in which a plurality of load-bearing members in a detachable reinforced steel structure module building are connected at the edge of the building through a connection assembly by another connection method; Fig.18 It is a schematic diagram of a three-dimensional structure in which a plurality of load-bearing members in a detachable reinforced steel structure module building are connected at the edge of the building through a connection assembly by another connection method; Fig.19It is a three-dimensional structural schematic diagram of a connection component provided with a fixing protrusion and a fixing groove in a detachable reinforced steel structure module building; Fig. 20 It is a three-dimensional structural schematic diagram of a connection assembly provided with a pad in a detachable reinforced steel structure module building; Fig.21 It is a three-dimensional structural schematic diagram of a connection assembly with four nuts and bolts in a detachable reinforced steel structure module building; Fig. 22 for Fig.21 Schematic diagram of the three-dimensional structure of the four nuts and bolts; Fig.23 is the bending moment-rotation curve of the enhanced node along the x+ direction; Fig.24 is the bending moment-rotation curve of the reinforced node along the x-direction; Fig.25 is the load-mid-span deflection curve of the reinforced composite steel beam; Fig.26 is the first curve diagram of bending moment-rotation angle; Fig. 27 is the second curve diagram of bending moment-rotation angle; Fig.28 is the third curve diagram of bending moment-rotation angle; Fig.29 This is a three-dimensional structural schematic diagram of a connection structure of a load-bearing-enclosing integrated wall panel of the present application; Fig.30 This is a three-dimensional cross-sectional view of a connection structure of a load-bearing and enclosure integrated wall panel of the present application; Fig.31 is a schematic diagram of the three-dimensional structure of the wall; Fig.32 is a three-dimensional cross-sectional view of the wall; Fig.33 It is the front view of the connection between the wall and the frame; Fig.34 It is a schematic diagram of the three-dimensional structure when two walls are spliced ​​together; Fig.35 This is the rear view of two walls being joined together; Fig.36 It is a schematic diagram of the three-dimensional structure of another embodiment of the connection structure before assembly; Fig.37 It is a schematic diagram of the three-dimensional structure after the connection structure of another embodiment is assembled; Fig.38 It is a schematic diagram of the three-dimensional structure of another embodiment of the connection structure before assembly; Fig.39 It is a schematic diagram of the three-dimensional structure after the connection structure of another embodiment is assembled; Fig.40 for Fig.38 Schematic diagram of the three-dimensional structure before the middle connecting beam structure is assembled.

[0020] Reference numerals: 200-load bearing member, 210-horizontal load bearing member, 220-vertical load bearing member; 230-screw hole; 300-connection assembly, 310-vertical plate; 311-connection hole; 312-fixing convex; 320-fastening bolt; 330-first connection part; 331-fixing groove; 340-second connection part; 341-through hole; 342-screw hole; 350-single-sided bolt; 360-pad; 700-stand; 710-base; 720-column; 730-corbel; 740-horizontal Beam; 800-wall; 810-upper connecting beam; 811-upper beam body; 812-ear plate; 812a-lifting hole; 813-connecting plate; 820-wall panel; 821-positioning groove; 822-operating groove; 830-door and window holes; 840-wall connecting end; 841-groove; 842-lower connecting beam; 842a-through hole; 850-first wall panel; 860-second wall panel; 870-fastener; 880-positioning hole; 900-suspension system; 910-hook. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] In the description of the present invention, 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 invention 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 invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, 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 the present invention can be understood according to specific circumstances.

[0024] The present invention is further explained below in conjunction with specific implementation modes.

[0025] Example 1 like Figure 1-16 , 19-22, this embodiment provides a detachable reinforced steel structure module building, see Figure 1-4 , including a wall panel 820, a load-bearing member 200 and a connecting assembly 300; the connecting assembly 300 is used to detachably connect multiple load-bearing members 200; the load-bearing member 200 includes a horizontal load-bearing member 210 and a vertical load-bearing member 220; the vertical load-bearing members 220 are four and are arranged in a rectangular shape; the horizontal load-bearing member 210 is arranged between two adjacent vertical load-bearing members 220; the load-bearing members 200 are connected by the connecting assembly 300 to form a frame module; when a number of the frame modules adjacent to each other up and down or left and right are connected, a number of horizontal load-bearing members 210 or a number of vertical load-bearing members 220 arranged side by side at the adjacent parts of the two frame modules are connected by the connecting assembly 300; the wall panel 820 is arranged between the load-bearing members 200 that are enclosed; the wall panel 820 is provided with an operating groove 822 for providing an operating space when disassembling and assembling the connecting assembly 300.

[0026] The construction of the detachable reinforced steel structure module building is divided into two stages: factory prefabricated module units and on-site module assembly; when the module units are prefabricated in the factory, the connection assembly 300 and the load-bearing member 200 are welded into a whole, and then the nodes of the load-bearing member 200 are welded to form a module frame; then the building wall panel 820 with a "snap-on inspection port" is installed, and then the water and electricity installation and module decoration are carried out to form a detachable reinforced steel structure module; when the module is assembled on the construction site, the module is transported to the construction site, the first-floor module is hoisted to meet the installation requirements, and the second floor is hoisted in sequence until the design height; wherein, the connection between the modules is connected by using the connection assembly 300 in the operation groove 822 reserved on the wall panel 820, which will not affect the indoor and outdoor decoration, while taking into account the advantages of convenient construction and installation and excellent mechanical properties; the operation groove 822 can be combined with the building's skirting, wall corner decoration and ceiling corner line, which is not only an operating surface for module splicing, but also a working space for maintenance, recycling and disassembly, which can be recycled and reused, low-carbon and environmentally friendly. The load-bearing member 200 may be a beam or a column.

[0027] Reference Figure 5-16As shown, as a further solution of the present application, the connecting assembly 300 includes a vertical plate 310 and a fastening bolt 320; the vertical plate 310 is arranged on the load-bearing member 200; a connecting hole 311 is arranged on the vertical plate 310, and the diameter of the connecting hole 311 is adapted to the fastening bolt 320; the two vertical plates 310 on two adjacent load-bearing members 200 are arranged in parallel and spaced apart, and are connected by fastening bolts, so that the two adjacent load-bearing members are connected to form a superimposed load-bearing member.

[0028] During assembly, the vertical plate 310 is first connected to the load-bearing member 200, and then the fastening bolts 320 are fastened through the connection holes 311 on the vertical plate 310, thereby connecting multiple load-bearing members 200. In order to better connect the load-bearing members 200, one or more groups of connection components 300 can be set according to the needs of the site.

[0029] See also Figure 14-16 As shown, as a further solution of the present application, the connection assembly 300 also includes a first connection portion 330 fixedly connected to the load-bearing member by welding, bonding, fasteners (such as screws, anchors), etc.; the vertical plate 310 is connected to the load-bearing member 200 through the first connection portion 330.

[0030] As a preferred solution of the present application, the first connecting portion 330 is a hoop, a sleeve or a steel plate. The hoop or sleeve can be sleeved on the load-bearing member 200, and the steel plate is welded and fixed on the load-bearing member 200.

[0031] See also Fig.19 As shown, as a further solution of the present application, the first connecting portion 330 includes a plurality of rib plates (i.e., steel plates) arranged in parallel and at intervals, and the rib plates are arranged in parallel with the fastening bolts 320; a fixing groove 331 is provided at the end of the rib plate; when two adjacent load-bearing members are connected, the two vertical plates 310 are respectively inserted into the fixing grooves 331 on the rib plates on the two load-bearing members, and the fastening bolts 320 pass through the connecting holes 311 on the vertical plates 310 and the rib plate intervals, and the two load-bearing members are connected after being fastened with nuts.

[0032] Limiting protrusions 312 are provided at both ends of the vertical plate 310. After the vertical plate 310 is inserted into the fixing groove 331 of the rib plate, the limiting protrusions 312 respectively abut against the outer surfaces of the two outermost rib plates of the vertical plate 310 to prevent the vertical plate 310 from sliding along the fixing groove 331.

[0033] For some connection positions (such as the position near the center where multiple load-bearing members 200 are connected), due to inconvenient operation, it is necessary to first place the fastening bolts 320 and then set the vertical plate 310 for clamping. Therefore, the present application provides a fixing groove 331 on the first connection part 330, and the connection is achieved through the cooperation of the fixing groove 331 and the fixing clamping protrusion 312 set on the vertical plate 310, thereby realizing the connection method of first placing the bolts and then setting the vertical plate 310.

[0034] As a preferred solution of the present application, the connection assembly 300 is arranged at both ends and in the bending and shearing area of ​​the load-bearing member 200, with a spacing of less than 2m; the height of the connection assembly 300 is the smaller value of the height and width of the load-bearing member 200. .

[0035] Smaller spacing between the connection components 300 is conducive to achieving the coordinated work of the composite steel beams to the greatest extent; the length of the connection components 300 along the beam span direction is determined by the number of bolts to ensure good force and that the connection components 300 can be hidden in the building walls and floors after the bolted connection is completed.

[0036] As a further solution of the present application, stiffening ribs are provided between the load-bearing members 200 .

[0037] Stiffening ribs are added between the load-bearing members 200 as needed to cope with the large local stress that occurs when the connection assembly 300 and the load-bearing member 200 are welded.

[0038] As a further solution of the present application, the fastening bolts 320 are 10.9 grade M30 high-strength bolts, and the other components of the connecting assembly 300 except the bolts are made of Q355 or Q345 steel.

[0039] After mechanical simulation, it was found that when the load-bearing member 200 was laterally deformed, the fastening bolt 320 just yielded, and there was no obvious separation between the upper column and the lower column at the vertical connection node between the modules (i.e., the vertical connection at the column end), further indicating that the node can well transfer the bending moment between the modules to form a bending-resistant frame that is beneficial for earthquake resistance, which is conducive to promoting its application in earthquake-resistant fortification areas.

[0040] like Fig. 20 As shown, as a further solution of the present application, a cushion block 360 is arranged between the two vertical plates 310 for connecting two adjacent load-bearing members 200; when connected, the two vertical plates 310 respectively abut against the two end surfaces of the cushion block 360; a circular hole (not shown in the figure) is arranged on the cushion block 360, and its diameter is adapted to the fastening bolt 320; the fastening bolt 320 passes through the cushion block 360 through the circular hole.

[0041] At the corners and edges of the building, the pre-tension of the vertical connection bolts of the vertical load-bearing member 200 significantly affects the initial stiffness of the vertical connection nodes between modules. However, the pre-tension is consistent with the axial pressure direction of the vertical load-bearing member 200, which is equivalent to increasing the axial pressure ratio of the vertical load-bearing member 200 and reducing the safety reserve of the vertical load-bearing member 200. Therefore, based on the principles of "force is always transmitted along the shortest path" and local "self-balancing", the pad 360 added by this solution can not only apply sufficient pre-tension to ensure the initial stiffness of the node, but also avoid increasing the axial pressure of the column, so that the bolt pre-tension forms a local self-balancing structure between "upper bolt connection-pad 360-lower bolt connection", so that the influence of the bolt on the column is as small as possible.

[0042] See also Figure 21-22 As shown, as a further solution of the present application, it is used to solve the problem of low safety reserve of the column. The connecting assembly 300 includes a rectangular member, and the rectangular member includes two vertical plates 310 and two vertical plates; the two vertical plates 310 are arranged in parallel and spaced apart, and the two ends of the vertical plates are respectively connected to the ends of the two vertical plates 310, and the two vertical plates 310 and the two vertical plates enclose a rectangular structure. When two adjacent load-bearing members are connected, the two rectangular members on the two load-bearing members are arranged in parallel and spaced apart, and each fastening bolt 320 passes through the connection holes 311 on the four vertical plates 310 on the two rectangular members and is fastened with a nut. Further preferably, two prestressed nuts are screwed on each fastening bolt 320 and in the interval between the two rectangular members, and the two prestressed nuts are respectively tightened to the two ends and respectively abut against the two rectangular members, so that each fastening bolt 320 applies a preset clamping force to the rectangular member, that is, a pre-tensioning force is applied to the inner section of each fastening bolt 320 inserted in the rectangular member. By applying pre-tension to the upper and lower sections respectively, two local self-balancing structures of "upper bolt connection-upper section bolt" and "lower bolt connection-lower section bolt" are formed, and no force is applied to the middle section of the bolt, that is, the bolt pre-tension will not increase the axial pressure of the upper and lower columns.

[0043] In actual operation of this embodiment, the connection assembly 300 and the load-bearing member 200 are welded into a whole, and then the nodes of the load-bearing member 200 are welded to form a module frame; then the building wall panel 820 with a "snap-on inspection port" is installed, and then the water and electricity installation and module decoration are carried out to form a detachable reinforced steel structure module; the module is transported to the construction site, the first-floor module is hoisted to meet the installation requirements, and the second floor is hoisted in sequence until the design height; wherein, the connection between the modules is connected by using the connection assembly 300 in the operation groove 822 reserved on the wall panel 820. When assembling, the vertical plate 310 is first connected to the load-bearing member 200, and then the fastening bolt 320 is fastened and connected through the connection hole 311 on the vertical plate 310, so as to connect multiple load-bearing members 200. In order to better connect the load-bearing members 200, one or more groups of connection assemblies 300 can be set according to the needs of the site. By welding the first connection part 330 on the load-bearing member 200, the vertical plate 310 can be more easily connected to the load-bearing member 200; in addition, using a hoop, a sleeve or a steel plate as the first connection part 330 can further strengthen the connection to the load-bearing member 200. For some connection positions (such as the position near the center where multiple load-bearing members 200 are connected), due to the inconvenience of operation, it is necessary to place bolts first and then set the vertical plate 310 for clamping. Therefore, the present application provides a fixing groove 331 on the first connection part 330, and the fixing groove 331 is connected by the fixing protrusion 312 provided on the vertical plate 310, so as to realize the connection method of placing bolts first and then setting the vertical plate 310. The smaller spacing of the connection components 300 (less than 2m) is conducive to the maximum realization of the coordinated work of the composite steel beams; the length of the connection component 300 along the beam span direction is determined by the number of bolts to ensure good force and the connection component 300 can be hidden in the building wall and floor after the bolt connection is completed. By adding stiffening ribs between the load-bearing members 200 as needed, the local large stress when the connection assembly 300 is welded with the load-bearing member 200 can be dealt with. To solve the problem of low safety reserve of the column, the present solution adds a pad 360 or uses a bolt including four nuts to achieve local self-balancing.

[0044] The structure of this embodiment can be further quantitatively evaluated through mechanical simulation.

[0045] In the numerical simulation of the enhanced connection node at the corner of the building (i.e. the connection of the load-bearing parts in three directions), except for the 10.9-grade M30 high-strength bolts, the other components are made of Q355 steel, and the steel constitutive model adopts the ideal elastic-plastic model. The bottom surface of the lower corner column is a fixed constraint, and the displacement loads in two directions are applied to the top of the upper module column. The grid type is C3D8R; the pre-tension of the M30 bolt is 355KN, which is applied in two steps in ABAQUS. The bending moment of the connection node between modules is obtained. The rotation angle curve is as follows Figure 24-25 As shown, referring to the node stiffness classification in the European standard (EN 1993-1-1 2005), it can be seen that: in the unsupported and supported systems, the nodes proposed in this application are rigid nodes in both directions. When the column undergoes lateral deformation, the bolts just yield, and the vertical connection nodes between the modules (i.e., the vertical connection at the column end) do not have obvious separation between the upper column and the lower column, which further shows that the node can well transmit the bending moment between the modules to form a bending-resistant frame that is beneficial to earthquake resistance, which is conducive to promoting its application in earthquake-resistant fortified areas.

[0046] When numerically simulating the reinforced composite steel beams at the edge of the building, except for the 10.9-grade high-strength bolts, the other components are made of Q345 steel, and the ideal elastic-plastic model is used for the steel constitutive model. The boundary constraints of the simply supported beam are adopted, two-point displacement loading is adopted at 1 / 3 of the beam, and the mesh type is C3D8R; the pre-tension value of the high-strength bolts is taken according to the current specifications and applied in two steps in ABAQUS.

[0047] By only changing the diameter of the high-strength bolts, the curves of the load and mid-span deflection of the structure are obtained as follows: Fig.29 Compared with the independent double beams in conventional steel module buildings, the initial stiffness and the load-bearing capacity of the enhanced composite steel beams after loading are significantly improved, which is extremely economical; when the bolt diameter is greater than 20mm, the load-bearing capacity of the enhanced composite steel beams after loading is close to that of the fully composite steel beams.

[0048] As an extremely unfavorable situation, taking the M27 bolt as an example, just after the pre-tension of the bolt was applied, it was found that the shear key had already partially yielded ( ), affecting the structural safety. At this time, the maximum stress of the module column is 283.1Mpa, close to the yield strength (345Mpa), and the average stress level of the column section also reaches more than 160Mpa, reducing the bearing capacity and safety reserve of the column.

[0049] In another case, although the vertical connection bolts at the column end are unfavorable to the shear key and the module column, they are beneficial to the initial stiffness of the connection node between modules. Taking M16 bolts as an example, by applying the pre-tension required by the specification and its percentage value, the bending moment angle curve of the node is obtained, as shown in Fig.33As shown in the figure, as the pretension increases, the initial stiffness of the node increases. In order to eliminate the adverse effects of bolt pretension on shear keys and module columns, while retaining the beneficial effects of pretension on the initial stiffness of the node, two methods based on the same principle are proposed: Method 1 is to add pads. After the bolt pre-tension is applied, the shear key has a large local stress (much smaller than the yield stress), but the overall stress level is low. At the same time, the stress of the module column is only 65.81Mpa, which is much lower than the previous 283.1Mpa. The moment-rotation curve of the node between modules is extracted, such as Fig.36 As shown, it is found that the curve is basically consistent with the curve of prestressing applied according to the previous specifications, indicating that this method has great applicability.

[0050] Method 2 is to use a bolt with four nuts. After the bolt pre-tension is applied, although the shear key has a large local stress (much smaller than the yield stress), the overall stress level is low. At the same time, the stress of the module column is only 82.3Mpa, which is much lower than the previous 283.1Mpa. The moment-rotation curve of the node between modules is extracted, such as Fig.39 As shown, it is found that the curve is basically consistent with the curve of prestressing applied according to the previous specifications, indicating that this method has great applicability.

[0051] By adopting the above technical solution, the present invention has the following beneficial effects: (1) The problem that the connection nodes between traditional steel modules are weak in rigidity and can only be simplified as hinges during design is solved; the weak nodes result in the stacked box module structure being able to only build module structures with three floors or less, and being unable to build multi-story and high-rise buildings. Multi-story and high-rise module buildings require additional lateral force resistance structures, which increases costs. (2) The problem that adjacent beams and columns between traditional steel modules are not connected and cannot work together is solved; adjacent beams and columns between steel modules cannot work together, resulting in weak structural rigidity, poor seismic performance, large steel consumption, and low applicable height of the structure, which restricts the development of steel module buildings to multi-story and high-rise buildings. (3) The problem of the lack of working surface during the installation of existing steel module buildings is solved; especially at the middle node, where eight modules intersect, there is a lack of construction operation surface when installing the last module, making it difficult to install the node. (4) It solves the problem that existing steel modular buildings are difficult to achieve both convenient construction and installation and excellent mechanical properties. When existing steel modular buildings are prefabricated in factories, the steel modular unit structure system, enclosure system, equipment pipelines and interior decoration must be integrated at the same time, so as to maximize the transfer of on-site work to the factory, forming a fully functional modular box to facilitate on-site construction. On the other hand, the modular box is closed on all sides, which makes it difficult to set connectors between beams and columns between structural modules to enhance collaborative workability, and it is difficult to improve the mechanical properties of modular buildings. (5) It solves the problem of high cost of existing steel modular buildings. (6) It solves the problem that when the direction of bolt pretension is the same as the direction of component force, the bearing capacity of the component is greatly reduced.

[0052] Example 2 like Figure 17-18 As shown, the connecting assembly also includes a second connecting portion 340 and a single-sided bolt 350; the second connecting portion 340 is plate-shaped and has a through hole 341 thereon; a screw hole 230 is provided on the side wall at the connection between adjacent load-bearing members 200, and its position is opposite to the position of the through hole 341; the single-sided bolt 350 passes through the through hole 341 provided on the second connecting portion 340, enters the screw hole 230 on the load-bearing member 200 and is fastened, thereby strengthening the connection between two adjacent load-bearing members 200.

[0053] As a preferred solution of the present application, the second connecting portion 340 is in a rectangular, cross or T-shaped shape.

[0054] The connection scheme provided in this embodiment can connect different load-bearing members 200 through second connection parts 340 of different shapes according to the actual situation of the construction site, and can effectively improve the node stiffness and structural robustness.

[0055] By adopting the above technical solution, the present invention has the following beneficial effects: (1) Connection parts of different shapes can be customized according to different site conditions, and can also be standardized and mass-produced according to general building specifications, which is flexible and convenient. (2) The use of this solution can effectively expand the node domain range, improve the node stiffness and structural robustness. (3) The structure is simple and easy to install, saving time and effort during installation at the construction site. (4) The connection structure provided in this embodiment can be used independently or in conjunction with the connection technology in the first embodiment or other prior arts, and is flexible in use.

[0056] Example 3 like Figure 29-35As shown, the modular building also includes a connection structure of a load-bearing-enclosing integrated wall panel, including a stand 700, a wall 800 and a suspension system 900; the stand includes a base 710, a column 720 and a corbel 730; the column 720 is the load-bearing member 200 and the connection assembly 300 in Example 1 and Example 2, which is arranged on the base 710, and corbels 730 are arranged thereon at intervals; the corbels 730 are detachably arranged on the stand; the interval length of the corbels 730 corresponds to the height of the wall 800; the wall 800 includes a wall panel 820 and a support arranged on the wall panel An upper connecting beam 810 at the upper end; the length of the upper connecting beam 810 is less than the length of the wall panel 820, and there is space on both sides of the wall panel 820, and the space corresponds to the length of the corbel 730; the lower part of the wall 800 is a wall connecting end 840; the wall connecting end 840 is provided with a groove 841, and a lower connecting beam 842 is fixedly arranged in the groove 841; the shape of the upper connecting beam 810 and the corbel 730 matches the shape of the lower connecting beam 842; the upper connecting beam 810 and the corbel 730 are fastened to each other through a connecting plate 813.

[0057] During assembly, the first wall panel 850 is first placed between the columns 720, with the lower portion connected to the base 710, the corbel 730 is installed on the columns 720, and the upper connecting beam 811 is fixedly connected to the corbel 730. When placing the second wall panel 860, the lower connecting beam 842 of the second wall panel 860 is aligned with and overlapped with the upper connecting beam 810 of the first wall panel 850. At this time, the wall connecting end 840 of the second wall panel 860 is directly connected to the upper end of the first wall panel 850, and the upper connecting beam 810 of the first wall panel 850 and the lower connecting beam 842 of the second wall panel 860 are hidden in the groove 841 of the wall connecting end 840 of the second wall panel 860, which plays the role of hidden beams and also improves the stability of the wall load-bearing.

[0058] Furthermore, the upper connecting beam 810 includes an upper beam body 811 and an ear plate 812 for hoisting; the lower connecting beam 842 is provided with a through hole 842a for allowing the ear plate 812 to pass through at the ear plate 812 corresponding to the upper connecting beam 810; a positioning groove 821 is provided in the groove 841 of the wall body 800, for allowing the ear plate 812 to fit into the wall panel 820 to achieve connection and positioning; a hoisting hole 812a is provided on the ear plate for hoisting; a hook 910 is provided under the suspension system 900; the shape of the hook 910 matches the shape of the hoisting hole 812.

[0059] During assembly, the suspension system 900 controls the movement of the wall by connecting and cooperating with the hook 910 and the hoisting hole 812. The second wall panel 860 approaches the first wall panel 850 from above through the suspension system 900. The ear plate 812 provided on the first wall panel 850 and the positioning groove 821 provided on the second wall panel 860 can be positioned and installed more accurately and conveniently, avoiding lateral displacement of the two wall panels during installation. In addition, the cooperation between the ear plate 812 and the positioning groove 821 can also improve the vertical and lateral load capacity of the entire wall.

[0060] Preferably, 2-4 ear plates 812 are provided for more stable lifting and more accurate positioning.

[0061] Furthermore, the side cross-section of the lower connecting beam 842 is U-shaped, and the inner diameter of the lower connecting beam 842 is greater than or equal to the width of the upper connecting beam 810. The inner groove height of the lower connecting beam 842 is greater than or equal to the height of the upper connecting beam 810; the outer height of the lower connecting beam 842 is less than or equal to the depth of the groove 841.

[0062] When the upper connecting beam 810 and the lower connecting beam 842 are matched, the upper connecting beam 810 and the lower connecting beam 842 are both located inside the wall connecting end 840 after matching, playing the role of hidden beams, and facilitating rapid assembly on site, thereby improving the construction speed.

[0063] Preferably, the inner groove height of the lower connecting beam 842 is the same as the height of the upper connecting beam 810; the inner groove width of the lower connecting beam 842 is the same as the width of the upper connecting beam 810; the outer height of the lower connecting beam 842 is the same as the depth of the groove 841; By tightly connecting the upper connecting beam 810 and the lower connecting beam 842 in the horizontal and vertical directions, the wall 800 can not only transmit the vertical load to share the load on the column 720, but also expand the contact area between the two walls 800, so as to better transmit the lateral force as a whole.

[0064] Furthermore, the wall panel 820, the upper connecting beam 810 and the lower connecting beam 842 are prefabricated in a factory. Required door and window holes 830 are reserved on the wall 800 according to architectural design requirements.

[0065] By prefabricating the wall panel 820, the upper connecting beam 810 and the lower connecting beam 842 in an integrated manner, the number of steps in the construction process can be effectively reduced, thereby improving construction efficiency and shortening the project period.

[0066] Furthermore, the connection between the upper connecting beam 810 or the lower connecting beam 842 and the wall panel 820 may be achieved by a method known in the prior art, which is not limited in the present application.

[0067] Preferably, the wall panel 820 is made of a lightweight material, preferably an ALC composite panel. Due to its lighter gravity, it is beneficial to improve the safety and stability during the hoisting process and reduce the difficulty of hoisting.

[0068] When assembling this embodiment, the wall panel 820, the upper connecting beam 810 and the lower connecting beam 842 made of ALC composite board are prefabricated in an integrated manner in the factory, and the required door and window holes 830 are reserved on the wall 800 according to the architectural design requirements to obtain a standardized wall 800. The suspension system 900 controls the movement of the wall by connecting and cooperating with the hook 910 and the lifting hole 812. The first wall panel 850 is first set between the columns 720, the lower part is connected to the base 710, and the upper connecting beam 811 is fixedly connected to the corbel 730. When placing the second wall panel 860, the second wall panel 860 approaches the first wall panel 850 from above through the suspension system 900. The lower connecting beam 842 of the second wall panel 860 is aligned with the upper connecting beam 810 of the first wall panel 850. The positioning can be performed more accurately and conveniently through the ear plate 812 provided on the first wall panel 850 and the positioning groove 821 provided on the second wall panel 860. At this time, the wall connecting end 840 of the second wall panel 860 is directly connected to the upper end of the first wall panel 850, and the upper connecting beam 810 of the first wall panel 850 and the lower connecting beam 842 of the second wall panel 860 are hidden in the groove 841 of the wall connecting end 840 of the second wall panel 860, which plays the role of hidden beams and also improves the stability of the wall's load-bearing capacity.

[0069] By adopting the above technical solution, the present invention has the following beneficial effects: (1) Solve the problem of low standardization and generalization of traditional prefabricated building components, so as to improve the degree of assembly and standardization of the building structure system, reduce the project cost, shorten the construction period and save energy and protect the environment. (2) After the upper connecting beam and the lower connecting beam are matched, they are both located inside the wall connection end, which plays the role of hiding the beam and is conducive to rapid assembly on site, thus improving the construction speed. (3) The lower connecting beam is provided with a slot corresponding to the position of the ear plate of the upper connecting beam, which is convenient for lifting and can realize rapid installation on site, thus improving the work efficiency on site. (4) The beam and the wall panel are prefabricated in the factory together, which effectively reduces the process steps in the construction process, thereby improving construction efficiency and shortening the project period. (5) The wall panels and beams are prefabricated together in the factory, which can effectively improve production efficiency and reduce environmental pollution while ensuring production quality. (6) A close connection between the wall beam is achieved, so that the wall can transmit vertical load and share the force of the column. (7) The ear plate at the upper end of the beam is convenient for lifting, and the wall panels can be spliced ​​using lifting equipment.

[0070] Example 4 like Figure 36-37 As shown, this embodiment provides a connection structure of a load-bearing and enclosing integrated wall panel. Unlike Embodiment 3, the left and right sides of the cross beam 740 are directly connected to the columns, and the upper connecting beam 810 and the lower connecting beam 842 are both U-shaped, with their opening directions facing the middle plane of the wall panel; the size of the U-shaped openings of the upper connecting beam 810 and the lower connecting beam 842 corresponds to the size of the cross beam 740.

[0071] The upper connecting beam 810 and the lower connecting beam 842 are provided with elastic cushion materials (not shown in the figure) at the contact points with the cross beam 740, which improves the flexibility of the connecting structure and can also play a role in energy consumption during severe vibrations such as earthquakes.

[0072] During assembly of this embodiment, the U-shaped openings of the upper connecting beam 810 of the first wall panel 850 and the lower connecting beam 842 of the second wall panel 860 fit with the cross beam. After assembly, the first wall panel and the second wall panel fit tightly together, which can play the role of hiding the beam.

[0073] By adopting the above technical solution, the present invention has the following beneficial effects: (1) The connection between the U-shaped connecting beam and the cross beam has a certain degree of flexibility, and can also play a role in energy consumption during severe vibrations such as earthquakes. (2) The first wall panel and the second wall panel fit tightly together, playing a role in hiding the beam. (3) The upper connecting beam, the lower connecting beam and the wall panel can be prefabricated in the factory, reducing the number of on-site construction processes. (4) The connection method between the connecting beam and the cross beam is simple and easy to operate, which can improve on-site construction efficiency.

[0074] Example 5 like Figure 38-40 As shown, the present embodiment provides a connection structure of a load-bearing-enclosing integrated wall panel, which is different from embodiments 3 and 4 in that the upper and lower parts of the wall are provided with an upper connecting beam 810 and a lower connecting beam 842 exposed to the outside; the upper connecting beam 810 and the lower connecting beam 842 are U-shaped; the upper connecting beam 810, the lower connecting beam 842 and the cross beam 740 are respectively provided with positioning holes 880 at corresponding positions; the fastener 870 passes through the positioning hole 880 to connect the upper and lower walls; one or more positioning holes 880 are provided; the positioning hole can also cooperate with the hook 910 to suspend and hoist the wall panel.

[0075] When assembling this embodiment, the hook 910 lifts the second wall panel 860 through the positioning hole 880 set on the upper connecting beam 810 of the second wall panel 860, fits the lower connecting beam 842 of the second wall panel 860 with the upper connecting beam 810 and the cross beam 740 of the first wall panel 850, and then connects the upper and lower walls by passing the fastener 870 through the positioning hole 880.

[0076] By adopting the above technical solution, the present invention has the following beneficial effects: (1) The upper connecting beam, the lower connecting beam and the wall panel can be prefabricated in the factory, reducing the number of on-site construction processes. (2) The connection between the connecting beam and the cross beam is connected by fasteners to improve the stability of the beam connection. (3) The positioning holes on the connecting beam and the cross beam can be used for horizontal positioning during the installation process. (4) The positioning holes realize the design effect of combining the three functions of positioning, fastening and hoisting, making the device structure simpler and reducing the manufacturing cost and installation difficulty.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention 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 invention.

Claims

1. A connection structure of a load-bearing and enclosure integrated wall panel, characterized in that: Including stand, wall and suspension system; The stand comprises a base, a column and a corbel; The upright columns are arranged on the base, and corbels are arranged thereon at intervals; The corbel is detachably arranged on the column; The interval length of the corbels corresponds to the height of the wall 800; The wall body comprises a wall panel and an upper connecting beam arranged on the upper end of the wall panel; The length of the upper connecting beam is less than the length of the wall panel, and there is a space on both sides of the wall panel, and the space corresponds to the length of the corbel; The lower part of the wall is a wall connection end; The wall connecting end is provided with a groove, and a lower connecting beam is fixedly arranged in the groove; The shapes of the upper connecting beam and the corbel match the shape of the lower connecting beam; The upper connecting beam and the corbel are fastened and connected via a connecting plate.

2. The connection structure of the load-bearing-enclosing integrated wall panel according to claim 1, characterized in that: The upper connecting beam comprises an upper beam body and a lug plate for hoisting; The lug plate of the lower connecting beam corresponding to the upper connecting beam is provided with a through hole through which the lug plate can pass; A positioning groove is provided in the groove of the wall body, for allowing the ear plate to fit into the wall plate to achieve connection and positioning; The ear plate is provided with a hoisting hole for hoisting; A hook is provided below the suspension system; The shape of the hook matches the shape of the hanging hole.

3. The connection structure of the load-bearing-enclosing integrated wall panel according to claim 2 is characterized in that: The ear plates are provided in 2-4 pieces for more stable hoisting and more accurate positioning.

4. The connection structure of the load-bearing-enclosing integrated wall panel according to claim 1, characterized in that: The side cross-section of the lower connecting beam is U-shaped, and the inner diameter of the lower connecting beam is greater than or equal to the width of the upper connecting beam; The inner groove height of the lower connecting beam is greater than or equal to the height of the upper connecting beam; The outer height of the lower connecting beam is less than or equal to the depth of the groove; When the upper connecting beam and the lower connecting beam are matched, the upper connecting beam and the lower connecting beam are both located inside the wall connection end after matching, playing the role of a hidden beam.

5. The connection structure of the load-bearing-enclosing integrated wall panel according to claim 4, characterized in that: The inner groove height of the lower connecting beam is the same as the height of the upper connecting beam; The inner groove width of the lower connecting beam is the same as the width of the upper connecting beam; The outer height of the lower connecting beam is the same as the depth of the groove.

6. The connection structure of the load-bearing-enclosing integrated wall panel according to claim 1, characterized in that: The wall panel, the upper connecting beam and the lower connecting beam are prefabricated in one piece in a factory.

7. The connection structure of the load-bearing-enclosing integrated wall panel according to claim 1, characterized in that: The wall is provided with door and window holes.

8. The connection structure of the load-bearing-enclosing integrated wall panel according to claim 1, characterized in that: The wall panels are made of ALC composite panels.

9. The connection structure of the load-bearing-enclosing integrated wall panel according to claim 1, characterized in that: The left and right sides of the cross beam are directly connected to the columns, and the upper connecting beam and the lower connecting beam are both U-shaped, and the opening direction thereof is toward the middle plane of the wall panel; The size of the U-shaped openings of the upper connecting beam and the lower connecting beam corresponds to the size of the cross beam; The upper connecting beam and the lower connecting beam are provided with elastic cushion materials at the contact points with the cross beam, so as to dissipate energy in severe vibrations such as earthquakes.

10. The connection structure of the load-bearing-enclosing integrated wall panel according to claim 1, characterized in that: The upper and lower parts of the wall are provided with upper connecting beams and lower connecting beams exposed to the outside; The upper connecting beam and the lower connecting beam are U-shaped; Positioning holes are respectively provided at corresponding positions of the upper connecting beam, the lower connecting beam and the cross beam; The fasteners pass through the positioning holes to connect the upper and lower walls; One or more positioning holes are provided; The positioning hole can also cooperate with a hook to hang the wall panel.

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