Modular building

Abstract

The application provides a modular building, which comprises at least two superimposed and connected prefabricated modules, any two adjacent prefabricated modules comprise a first prefabricated module and a second prefabricated module, the second prefabricated module is located above the first prefabricated module, the first prefabricated module and the second prefabricated module are fixedly connected through a plurality of connecting nodes, the connecting nodes comprise a mounting hole, a first connecting steel plate and a second connecting steel plate; the first connecting steel plate and the second connecting steel plate both comprise a first connecting part and a second connecting part, the first connecting part is anchored in the corresponding prefabricated module through an anchoring steel bar, and the second connecting part is arranged in the mounting hole; the two second connecting parts of the first connecting steel plate and the second connecting steel plate are fixedly connected through a bolt structure; a plurality of detachable shear-resistant connecting structures are further arranged between the first prefabricated module and the second prefabricated module. The application has the advantages of good structural stability, convenient installation and removal.

Description

Technical Field

[0001] This invention is a divisional application for a modular building, with the parent application filed on August 11, 2022, and application number 202210961792.3. Technical Field

[0003] This invention relates to the field of prefabricated building technology, and more particularly to a modular building. Background Technology

[0004] Modular construction divides a building into several modules, each with a certain amount of space (cavity). This building structure can greatly improve the level of industrialization in construction, allowing most of the production tasks to be completed on the factory assembly line. It can transform the construction method into something similar to stacking blocks, greatly improving on-site construction efficiency.

[0005] Compared with traditional buildings, modular buildings are being promoted because of their advantages such as rapid and efficient construction, superior quality, safe construction process, predictable construction time, less resource waste, and promotion of environmental sustainability.

[0006] Chinese Utility Model Patent Publication No. CN213952507U discloses a modular building upper and lower connection node, which includes a first lower prefabricated module, a second lower prefabricated module, a first upper prefabricated module, and a second upper prefabricated module. Prefabricated sleeves are embedded in the top plates of both the first and second lower prefabricated modules, and connecting boxes are embedded in both the first and second upper prefabricated modules. Each prefabricated sleeve contains a connector, the upper end of which is fixed to the corresponding connecting box in the first or second upper prefabricated module. The connectors in the prefabricated sleeves of both the first and second lower prefabricated modules simultaneously penetrate the connecting plate. This patented connection node solves the connection problem between the top and bottom plates of the upper and lower prefabricated modules, simplifying the connection between adjacent prefabricated modules, reducing on-site construction difficulty, and improving the overall integrity of the modular building. However, the connection nodes of this patent are located at the connection points of four adjacent prefabricated modules. During the installation of the prefabricated modules, the positioning and installation of the four adjacent prefabricated modules is difficult and time-consuming. Fixing a connection node requires fixing operations within different prefabricated modules, resulting in low construction efficiency. Moreover, the connection nodes of this patent cannot be easily disassembled, making modular building turnover inconvenient.

[0007] Therefore, it is necessary in this field to develop a modular building that can ensure the stability of the connection between two adjacent prefabricated modules while facilitating installation and disassembly to solve the above problems. Summary of the Invention

[0008] The purpose of this invention is to address the shortcomings of existing technologies by providing a modular building that ensures the stability of the connection between two adjacent prefabricated modules while improving the ease of installation and disassembly.

[0009] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0010] A modular building includes at least two stacked prefabricated modules, any two adjacent prefabricated modules including a first prefabricated module and a second prefabricated module, with the second prefabricated module located above the first prefabricated module; both the first and second prefabricated modules include a bottom plate, a first side plate, a top plate, and a second side plate connected in sequence; its structural feature is that the first prefabricated module and the second prefabricated module are fixedly connected by multiple connection nodes, the connection nodes including installation openings, a first connecting steel plate, and a second connecting steel plate, and the installation opening is provided through the top plate of the first prefabricated module and the bottom plate of the second prefabricated module along the thickness direction;

[0011] The connection nodes are provided between the top of the four corners of the first prefabricated module and the bottom of the four corners of the second prefabricated module;

[0012] The first connecting steel plate is provided on the top plate of the first prefabricated module, and the second connecting steel plate is provided on the bottom plate of the second prefabricated module. Both the first connecting steel plate and the second connecting steel plate include a first connecting part and a second connecting part. Each first connecting part is fixedly connected to an anchoring steel bar by a through-hole plug welding connection method. The anchoring steel bar is anchored in the corresponding prefabricated module. Each second connecting part is placed in the installation opening.

[0013] A plurality of easily detachable shear-resistant connection structures are provided between the top plate of the first prefabricated module and the bottom plate of the second prefabricated module. The shear-resistant connection structure includes a first connecting hole and a pin shaft provided between the top plate of the first prefabricated module and the bottom plate of the second prefabricated module, and a third connecting steel plate; the third connecting steel plate is provided with a second connecting hole, and the pin shaft passes through the second connecting hole and is fixed to the third connecting steel plate;

[0014] The two second connecting parts of the first connecting steel plate and the second connecting steel plate are fixedly connected by a bolt structure; the bolt structure includes a first oblong hole, a second oblong hole and a bolt; the first connecting steel plate is provided with the first oblong hole, the second connecting steel plate is provided with the second oblong hole, the length direction of the first oblong hole and the length direction of the second oblong hole are perpendicular to each other, and the bolt is inserted between the first oblong hole and the second oblong hole.

[0015] The present invention will be further described below:

[0016] A modular building includes at least two prefabricated modules that are stacked and connected together. Any two adjacent prefabricated modules include a first prefabricated module and a second prefabricated module, with the second prefabricated module located above the first prefabricated module. Both the first and second prefabricated modules include a bottom plate, a first side plate, a top plate, and a second side plate that are connected in sequence.

[0017] The first prefabricated module and the second prefabricated module are fixedly connected by multiple connection nodes, each connection node including an installation opening, a first connecting steel plate, and a second connecting steel plate; the installation opening is provided through the top plate of the first prefabricated module and the bottom plate of the second prefabricated module along the thickness direction.

[0018] The first connecting steel plate is provided on the top plate of the first prefabricated module, and the second connecting steel plate is provided on the bottom plate of the second prefabricated module; both the first connecting steel plate and the second connecting steel plate include a first connecting part and a second connecting part, and each first connecting part is fixedly connected with an anchoring steel bar by a through-hole plug welding connection method. The anchoring steel bar is anchored in the corresponding prefabricated module, and each second connecting part is placed in the installation opening.

[0019] The two second connecting portions of the first connecting steel plate and the second connecting steel plate are fixedly connected by a bolt structure;

[0020] The top plate of the first prefabricated module and the bottom plate of the second prefabricated module are further provided with a plurality of easily detachable shear-resistant connection structures. The shear-resistant connection structure includes a first connecting hole and a pin shaft provided between the top plate of the first prefabricated module and the bottom plate of the second prefabricated module.

[0021] In this modular building, during installation, a pin is first installed at the top of the first prefabricated module. Then, the second prefabricated module is stacked and aligned with the first module. After installation, the pin is placed in the first connecting hole. After the stacking and alignment are completed, workers can use bolts to fix the two second connecting parts of the first and second connecting steel plates through the installation opening. This completes the assembly and installation of the two prefabricated modules. The shear-resistant connection structure and bolt structure of the connection node ensure the stability and reliability of the modular building connection, while also facilitating installation and dismantling. After the entire modular building is installed, the gaps in the installation opening can be filled with rubber blocks to avoid affecting the normal use of the modular building. Therefore, this modular building not only ensures the stability of the connection between the two prefabricated modules but also improves the convenience of installation and dismantling.

[0022] Furthermore, the aforementioned connection nodes are provided between the top of the four corners of the first prefabricated module and the bottom of the four corners of the second prefabricated module.

[0023] Furthermore, the upper end face of the first connecting steel plate is flush with the top end face of the first prefabricated module; the lower end face of the second connecting steel plate is flush with the bottom end face of the second prefabricated module.

[0024] Furthermore, each of the first connecting portions includes a first connecting segment and a second connecting segment; the anchoring reinforcement includes a first anchoring reinforcement and a second anchoring reinforcement; each of the first connecting segments is anchored to the corresponding floor slab and side plate through the first anchoring reinforcement, and each of the second connecting segments is anchored to the corresponding floor slab through the second anchoring reinforcement.

[0025] Furthermore, the bolt structure includes a first oblong hole, a second oblong hole, and a bolt; the first oblong hole is provided on the second connecting portion of the first connecting steel plate, the second oblong hole is provided on the second connecting portion of the second connecting steel plate, and the bolt passes through the first oblong hole and the second oblong hole.

[0026] Furthermore, the length directions of the first oblong hole and the second oblong hole are perpendicular to each other. This reduces the likelihood of problems arising from processing or installation errors of the first and second connecting steel plates preventing the installation of the two prefabricated modules.

[0027] Furthermore, the shear-resistant connection structure also includes a third connecting steel plate, which has a second connecting hole, through which the pin passes and is fixedly connected to the third connecting steel plate.

[0028] Furthermore, the upper end of the first connecting steel plate is provided with a first groove facing downwards, the lower end of the second connecting steel plate is provided with a second groove facing upwards, and the third connecting steel plate is provided between the first groove and the corresponding second groove.

[0029] Furthermore, the thickness of the third connecting steel plate is greater than or equal to the sum of the groove depths of the first groove and the second groove.

[0030] Furthermore, the first groove, the second groove, and the third connecting steel plate are all L-shaped. This allows for easy embedding and installation of the third connecting steel plate within the first and second grooves, and also facilitates the alignment and installation of the first prefabricated module A and the second prefabricated module B.

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0032] I. The modular building of the present invention can achieve rapid delivery. All components of the modular building can be prefabricated in the factory in advance. After the components are transported to the construction site, they can be quickly installed and put into use. The present invention is easy to install and connect, and has good stability after installation and connection, which can speed up the construction progress and save the construction cycle.

[0033] Second, the modular building of the present invention can be easily dismantled, enabling rapid turnover, high reusability, and low amortization cost.

[0034] Third, this invention combines fully prefabricated modular technology and bolt connection technology, which has the advantages of fast and efficient construction process, controllable quality, predictable construction time, less resource waste and promotion of environmental sustainability. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of a modular building in one embodiment of the present invention;

[0036] Figure 2 This is a schematic diagram of the structure of the first prefabricated module and the second prefabricated module in one embodiment of the present invention;

[0037] Figure 3 for Figure 2 Enlarged view of the structure at point C;

[0038] Figure 4 for Figure 2 Enlarged view of the structure at point D;

[0039] Figure 5 for Figure 1 Front elevation view;

[0040] Figure 6 for Figure 5 Enlarged view of the structure at point E in the middle;

[0041] Figure 7 This is a bottom view of the first connecting steel plate in one embodiment of the present invention;

[0042] Figure 8 This is a top view of the first connecting steel plate in one embodiment of the present invention;

[0043] Figure 9 This is a schematic diagram of the connection between the first connecting steel plate and the anchoring steel bar in one embodiment of the present invention;

[0044] Figure 10 for Figure 9 A structural diagram from another perspective;

[0045] Figure 11 This is a top view of the second connecting steel plate in one embodiment of the present invention;

[0046] Figure 12 This is a bottom view of the second connecting steel plate in one embodiment of the present invention;

[0047] Figure 13 This is a schematic diagram of the connection between the second connecting steel plate and the anchoring steel bar in one embodiment of the present invention;

[0048] Figure 14 for Figure 13 A structural diagram from another perspective;

[0049] Figure 15 This is a schematic diagram of the connection between the pin and the third connecting steel plate in one embodiment of the present invention;

[0050] Figure 16 for Figure 15 Side elevation view;

[0051] Figure 17 This is a schematic diagram of the structure of the third connecting steel plate in one embodiment of the present invention.

[0052] In the diagram: A, First prefabricated module; B, Second prefabricated module;

[0053] 1. Base plate; 2. First side plate; 3. Top plate; 4. Second side plate; 5. Partition plate; 6. Mounting opening; 7. First connecting steel plate; 71. First groove; 8. Second connecting steel plate; 81. Second groove; 9. First connecting part; 10. Second connecting part; 11. Anchoring reinforcement; 111. First anchoring reinforcement; 112. Second anchoring reinforcement; 12. Shear connection structure; 121. Pin; 122. Third connecting steel plate; 123. Second connecting hole; 13. Bolt structure; 131. First slotted hole; 132. Second slotted hole; 133. Bolt; 14. Welded connection hole. Detailed Implementation

[0054] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" used below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0055] like Figures 1-17As shown, a modular building in this embodiment includes at least two prefabricated modules that are stacked and connected. Any two adjacent prefabricated modules include a first prefabricated module A and a second prefabricated module B, with the second prefabricated module B located above the first prefabricated module A. Both the first prefabricated module A and the second prefabricated module B include a base plate 1, a first side plate 2, a top plate 3, and a second side plate 4 connected sequentially. Two partitions 5 are also provided between the first side plate 2 and the second side plate 4. The base plate 1, the first side plate 2, the top plate 3, the second side plate 4, and the two partitions 5 are integrally formed.

[0056] The first prefabricated module A and the second prefabricated module B are fixedly connected by four connection nodes, each connection node including an installation opening 6, a first connecting steel plate 7, and a second connecting steel plate 8. The connection nodes are provided between the top of each of the four corners of the first prefabricated module A and the bottom of each of the four corners of the second prefabricated module B.

[0057] The mounting opening 6 is provided through the top plate 3 of the first prefabricated module A and the bottom plate 1 of the second prefabricated module B along the thickness direction. The mounting opening 6 is located at the four corners of the prefabricated module.

[0058] The first connecting steel plate 7 is provided on the top plate 3 of the first prefabricated module A. The second connecting steel plate 8 is provided on the bottom plate 1 of the second prefabricated module B. The first connecting steel plate 7 and the second connecting steel plate 8 are vertically aligned. Both the first connecting steel plate 7 and the second connecting steel plate 8 include a first connecting portion 9 and a second connecting portion 10. Each first connecting portion 9 is fixedly connected to an anchoring steel bar 11 by a through-hole plug welding connection method. The anchoring steel bar 11 is anchored in the corresponding prefabricated module. Each second connecting portion 10 is placed in the installation opening 6.

[0059] The two second connecting parts 10 of the first connecting steel plate 7 and the second connecting steel plate 8 are fixedly connected by two bolt structures 13. In addition to bearing vertical loads, the prefabricated modules are also provided with the ability to resist horizontal loads by the support of the side wall and the setting of the partition. The two prefabricated modules are fastened on site by bolt structure, without column section loss.

[0060] Four easily detachable shear-resistant connection structures 12 are provided between the top plate 3 of the first prefabricated module A and the bottom plate 1 of the second prefabricated module B.

[0061] like Figure 6 As shown, the upper surface of the first connecting steel plate 7 is flush with the top surface of the first prefabricated module A. The lower surface of the second connecting steel plate 8 is flush with the bottom surface of the second prefabricated module B.

[0062] like Figures 1-14As shown, each of the first connecting portions 9 includes a first connecting segment 91 and a second connecting segment 92. The anchoring steel bars 11 include first anchoring steel bars 111 and second anchoring steel bars 112. Each first connecting segment 91 is anchored to the corresponding floor slab and side plate by multiple first anchoring steel bars 111. Each second connecting segment 92 is anchored to the corresponding floor slab by multiple second anchoring steel bars 112.

[0063] The first connecting segment 91 and the first anchoring rebar 111, as well as the second connecting segment 92 and the second anchoring rebar 112, are fixedly connected by through-hole plug welding. The first connecting steel plate 7 and the second connecting steel plate 8 are provided with welding connection holes 14, through which the first connecting steel plate 7 and the second connecting steel plate 8 are welded to the corresponding anchoring rebars.

[0064] The bolt structure 13 includes a first oblong hole 131, a second oblong hole 132, and a bolt 133. The first oblong hole 131 is provided on the second connecting portion 10 of the first connecting steel plate 7, and the second oblong hole 132 is provided on the second connecting portion 10 of the second connecting steel plate 8. The bolt 133 is inserted between the first oblong hole 131 and the second oblong hole 132. The bolt 133 is a high-strength bolt.

[0065] The length direction of the first oblong hole 131 and the length direction of the second oblong hole 132 are perpendicular to each other. This reduces the likelihood of problems arising from processing or installation errors of the first connecting steel plate 7 and the second connecting steel plate 8 preventing the installation of the two prefabricated modules.

[0066] like Figures 1-6 and Figures 15-17 As shown, the shear-resistant connection structure 12 includes a first connecting hole (not shown), a pin 121, and a third connecting steel plate 122 disposed between the top plate of the first prefabricated module A and the bottom plate of the second prefabricated module B. The first connecting hole vertically passes through the first connecting steel plate 7 and the second connecting steel plate 8. The top end of the first connecting hole is placed in the bottom plate 1 of the first prefabricated module A, and its bottom end is placed in the top plate 3 of the first prefabricated module A. The pin 121 is placed in the first connecting hole. The third connecting steel plate 122 is provided with a second connecting hole 123, through which the pin 121 passes and is fixedly connected to the third connecting steel plate 122.

[0067] like Figures 1-17As shown, the upper end of the first connecting steel plate 7 has a first groove 71 facing downwards. The lower end of the second connecting steel plate 8 has a second groove 81 facing upwards. The first groove 71, the second groove 81, and the third connecting steel plate 122 are all L-shaped. The third connecting steel plate 122 is disposed between the first groove 71 and the corresponding second groove 81. The thickness of the third connecting steel plate 122 is greater than or equal to the sum of the groove depths of the first groove 71 and the second groove 81. Therefore, the third connecting steel plate can be easily embedded and installed in the first and second grooves, and the alignment and installation of the first prefabricated module A and the second prefabricated module B can be easily achieved.

[0068] In this embodiment of modular building installation, a pin is first installed on the top of the first prefabricated module. Then, the second prefabricated module is stacked and aligned with the first prefabricated module. After installation, the pin is placed in the first connecting hole. After the stacking and alignment are completed, construction workers can use bolts to fix the two second connecting parts of the first and second connecting steel plates through the installation opening. This completes the assembly and installation of the upper and lower prefabricated modules. The shear-resistant connection structure and bolt structure of this embodiment ensure the stability and reliability of the modular building connection, while also facilitating installation and dismantling. After all modular buildings are installed, the gaps in the installation openings can be filled with rubber blocks to avoid affecting the normal use of the modular building.

[0069] This embodiment of a modular building enables rapid delivery. All components of the modular building can be prefabricated in the factory. After the components are transported to the construction site, they can be quickly installed and put into use. The modular building of this embodiment is easy to install and connect, has good stability after installation, can speed up the construction progress, and save the construction cycle. The modular building of this embodiment can be easily dismantled, enabling rapid turnover, high reusability, and low amortization costs.

[0070] The above embodiments should be understood as being used only to illustrate the present invention more clearly, and not to limit the scope of the present invention. After reading the present invention, any modifications of the present embodiments by those skilled in the art will fall within the scope defined by the appended claims.

Claims

1. A modular building comprising at least two stacked prefabricated modules, any two adjacent prefabricated modules comprising a first prefabricated module (A) and a second prefabricated module (B), the second prefabricated module (B) being located above the first prefabricated module (A); both the first prefabricated module (A) and the second prefabricated module (B) comprising a bottom plate (1), a first side plate (2), a top plate, and a second side plate (4) connected in sequence; characterized in that, The first prefabricated module (A) and the second prefabricated module (B) are fixedly connected by multiple connection nodes. The connection nodes include an installation opening (6), a first connecting steel plate (7), and a second connecting steel plate (8). The installation opening (6) is provided through the top plate (3) of the first prefabricated module (A) and the bottom plate (1) of the second prefabricated module (B) along the thickness direction. The connection nodes are provided between the top of the four corners of the first prefabricated module (A) and the bottom of the four corners of the second prefabricated module (B); The first prefabricated module (A) has a first connecting steel plate (7) on its top plate (3) and the second prefabricated module (B) has a second connecting steel plate (8) on its bottom plate (1). The first connecting steel plate (7) and the second connecting steel plate (8) each include a first connecting part (9) and a second connecting part (10). Each first connecting part (9) is fixedly connected to an anchoring steel bar (11) by a through-hole plug welding connection method. The anchoring steel bar (11) is anchored in the corresponding prefabricated module. Each second connecting part (10) is placed in the installation opening (6). A plurality of easily detachable shear-resistant connection structures (12) are provided between the top plate (3) of the first prefabricated module (A) and the bottom plate (1) of the second prefabricated module (B). The shear-resistant connection structure (12) includes a first connecting hole and a pin (121) provided between the top plate (3) of the first prefabricated module (A) and the bottom plate (1) of the second prefabricated module (B), and a third connecting steel plate (122). The third connecting steel plate (122) is provided with a second connecting hole (123), and the pin (121) passes through the second connecting hole (123) and is fixed to the third connecting steel plate (122). The two second connecting parts (10) of the first connecting steel plate (7) and the second connecting steel plate (8) are fixedly connected by a bolt structure (13); the bolt structure (13) includes a first waist-shaped hole (131), a second waist-shaped hole (132) and a bolt (133); the first connecting steel plate (7) is provided with the first waist-shaped hole (131), the second connecting steel plate (8) is provided with the second waist-shaped hole (132), the length direction of the first waist-shaped hole (131) and the length direction of the second waist-shaped hole (132) are perpendicular to each other, and the bolt (133) passes through the first waist-shaped hole (131) and the second waist-shaped hole (132).

2. A modular building according to claim 1, characterized in that, The upper end face of the first connecting steel plate (7) is flush with the top end face of the first prefabricated module (A); the lower end face of the second connecting steel plate (8) is flush with the bottom end face of the second prefabricated module (B).

3. A modular building according to claim 1, characterized in that, The first connecting steel plate (7) has a first groove (71) facing downward at its upper end, and the second connecting steel plate (8) has a second groove (81) facing upward at its lower end. The third connecting steel plate (122) is provided between the first groove (71) and the second groove (81).

4. A modular building according to claim 3, characterized in that, The thickness of the third connecting steel plate (122) is greater than or equal to the sum of the groove depths of the first groove (71) and the second groove (81).

5. A modular building according to claim 3, characterized in that, The first groove (71), the second groove (81) and the third connecting steel plate (122) are all L-shaped.

6. A modular building according to claim 1, characterized in that, Each of the first connecting portions (9) includes a first connecting segment (91) and a second connecting segment (92); the anchoring steel bar (11) includes a first anchoring steel bar (111) and a second anchoring steel bar (112); each of the first connecting segments (91) is anchored to the corresponding floor slab and side plate by the first anchoring steel bar (111), and each of the second connecting segments (92) is anchored to the corresponding floor slab by the second anchoring steel bar (112).

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