Support-free shear wall and shear wall assembly

Abstract

The support-free shear wall comprises a wall body, connecting steel bars are arranged in the vertical direction of the wall body, the upper ends of the connecting steel bars penetrate out of the upper end of the wall body, connecting holes in the vertical direction are formed in the lower end of the wall body, the lower ends of the connecting steel bars are located in the connecting holes, and grouting holes are further formed in the main wall face of the wall body; the grouting holes are communicated with the connecting holes; the U-shaped units are arranged on the side wall surface at intervals in the vertical direction, each U-shaped unit comprises one or more U-shaped steel bars, and the free ends of the U-shaped steel bars are embedded in the wall body; the screw joint unit is arranged on the side wall surface, the screw joint unit comprises a screw tube, and the screw tube is arranged between any two adjacent U-shaped units; the side plates are arranged on the side wall surfaces, the height of each side plate is the same as that of each U-shaped unit, the side plates are located on one side of any main wall surface, only the first connecting piece or the second connecting piece is needed for connection during assembly, and other extra supports are not needed.

Description

Technical Field

[0001] This invention relates to the field of prefabricated buildings, and in particular to a supportless shear wall and shear wall assembly. Background Technology

[0002] Shear walls are an important component of buildings. They are walls used to withstand horizontal and vertical loads caused by wind or earthquakes, preventing structural shear failure. In conventional construction, shear wall work is typically done on-site using wet methods with bricks and concrete. This process is time-consuming, requiring waiting for the concrete to harden, and necessitates extensive scaffolding support, resulting in a cluttered construction site.

[0003] With the rise of prefabricated buildings, more and more prefabricated components are being used, with shear walls being a typical example. Shear walls are prefabricated in a factory and then transported to the construction site, where they are assembled by quickly connecting them with prefabricated columns, beams, and other components using steel structural members.

[0004] Currently, shear walls still require scaffolding for support during assembly to ensure complete assembly. Furthermore, the complex steel structural components and inconvenient operation significantly impact the assembly progress. Summary of the Invention

[0005] This invention provides a support-free shear wall and shear wall assembly, which aims to solve the problem of long assembly time and the need for scaffolding support in existing shear walls.

[0006] To achieve the above objectives, embodiments of the present invention provide a supportless shear wall, comprising: The wall includes a main wall surface, side walls, and an upper wall surface and a lower wall surface disposed above and below the main wall surface and side walls. A connecting steel bar is provided in the vertical direction of the wall, the upper end of the connecting steel bar protruding from the upper wall surface. A vertical connecting hole is provided in the lower wall surface, and the lower end of the connecting steel bar is located in the connecting hole. A grouting hole is also provided in the main wall surface of the wall, and the grouting hole communicates with the connecting hole. Several sets of U-shaped units are arranged at intervals along the vertical direction on the side wall. Each set of U-shaped units includes one or more U-shaped steel bars arranged along the vertical direction. The free end of the U-shaped steel bar is embedded in the wall. A screw-in unit is disposed on the side wall surface, the screw-in unit includes a screw tube, and the screw tube is disposed between any two adjacent U-shaped units; Side panels, a plurality of side panels are arranged at intervals along the vertical direction on the side wall, the height of each side panel is the same as the height of each U-shaped unit, and the side panels are located on one side of any main wall.

[0007] Preferably, the screw unit further includes a reinforcing member, which is perpendicularly connected to the screw tube and is embedded in the wall.

[0008] Preferably, the screw unit is integrally formed.

[0009] Preferably, the side plate is provided with a clearance groove on the side near the U-shaped unit, the U-shaped steel bar includes a first connecting section, a second connecting section and an intermediate section, the first connecting section and the second connecting section respectively include a connecting end and a free end, the connecting ends of the first connecting section and the second connecting section are connected to both ends of the intermediate section, the free ends of the first connecting section and the second connecting section are embedded in the wall, and the first connecting section or the second connecting section is located in the clearance groove.

[0010] This application also provides a supportless shear wall component, comprising: The first shear wall and the second shear wall are the unsupported shear walls as described in any one of claims 1-4; The side plates of the first shear wall and the second shear wall are located on opposite sides of the U-shaped unit. The first shear wall and the second shear wall are connected end to end. The U-shaped units of the first shear wall and the U-shaped units of the second shear wall overlap to form an overlapping area. The first connector includes a first rectangular body, a first bolt, and a second bolt. The first rectangular body has a first through hole and a second through hole respectively on a set of opposite sides. The first bolt passes through the first through hole and is connected to the threaded tube of the first shear wall. The second bolt passes through the second through hole and is connected to the threaded tube of the second shear wall. The first rectangular body has an operating hole on another set of opposite sides. The reinforcing bars are fixed and inserted vertically into the overlapping area.

[0011] Preferably, the first through hole and the second through hole are waist-shaped holes, and the projections of the first through hole and the second through hole on the side wall of the first shear wall or the second shear wall are orthogonal.

[0012] This application also provides another unsupported shear wall component, including: The third shear wall and the fourth shear wall are the unsupported shear walls as described in any one of claims 1-4. The side plates of the third shear wall and the fourth shear wall are arranged on the same side of the U-shaped unit. The third shear wall and the fourth shear wall are connected end to end and the third shear wall is perpendicular to the fourth shear wall. The U-shaped units of the third shear wall and the U-shaped units of the fourth shear wall overlap to form an overlapping area. The second connector includes a second rectangular body, a third bolt, and a fourth bolt. The second rectangular body has a first through hole and a second through hole on its adjacent side. The third bolt passes through the first through hole and is connected to the threaded tube of the third shear wall. The fourth bolt passes through the second through hole and is connected to the threaded tube of the fifth shear wall. An operating hole is provided on another adjacent side of the second rectangular body. Fixed reinforcing bars are inserted into the overlapping area.

[0013] Preferably, the first through hole and the second through hole are oblong holes, with the first through hole being horizontally positioned and the second through hole being vertically positioned; or, The first through hole is set vertically, and the second through hole is set horizontally.

[0014] The above-described solution of the present invention has the following beneficial effects: The unsupported shear wall provided in this application does not require a support structure during assembly. When assembling the shear wall, two bolted units between adjacent shear walls are initially connected by a first connector or a second connector. After connection, the U-shaped steel bars of the two shear walls overlap to form an overlapping area. At this time, fixed steel bars are inserted into the overlapping area, and concrete is poured into the overlapping area. During the concrete solidification process, the two shear walls are kept stable by the first connector or the second connector, without the need for an additional support structure. In addition, when assembling two shear walls, the side plates restrict the overlapping area, and when pouring concrete, there is no need to use additional baffles to shield the concrete, which can effectively prevent the concrete from flowing.

[0015] Third, in this application, connecting adjacent shear walls only requires connecting the first or second connector, inserting and fixing the reinforcing bars, and pouring concrete. The operation is convenient and the assembly of the shear walls can be completed quickly.

[0016] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0017] Figure 1 This is a perspective view of a shear wall; Figure 2 yes Figure 1 Enlarged view of section A; Figure 3 yes Figure 1 Enlarged view of section B; Figure 4 This is a schematic diagram of a shear wall component; Figure 5 yes Figure 4 Enlarged view of section C; Figure 6This is a schematic diagram of the first connector; Figure 7 This is a top view of another shear wall component; Figure 8 yes Figure 7 Enlarged view of section D; Figure 9 This is an enlarged schematic diagram of the second connector.

[0018] [Explanation of Labels in the Attached Image] 10-Wall, 11-Main wall, 12-Side wall, 13-Upper wall, 14-Connecting hole, 15-Grouting hole, 16-Edge plate 20-Connecting steel bars, 30-U-shaped unit 40 - Screw unit, 41 - Screw tube, 42 - Reinforcing member 50A - First connector, 51 - First bolt 50B second connector, 53 third bolt, 54 fourth bolt. 1A - First shear wall, 1B - Second shear wall, 1C - Third shear wall, 1D - Fourth shear wall 60 - Fixed reinforcing bars. Detailed Implementation

[0019] To make the technical problems, technical solutions and advantages of the present invention clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0020] like Figure 1-3 As shown, an embodiment of the present invention provides a supportless shear wall, including a wall body 10. The wall body 10 is generally rectangular and includes a main wall surface 11, side wall surfaces 12, an upper wall surface 13, and a lower wall surface. The two main wall surfaces 11 are arranged opposite each other, the two side wall surfaces 12 are arranged opposite each other, and the upper wall surface 13 and the lower wall surface are arranged opposite each other. Connecting steel bars 20 are provided vertically in the wall body 10. A connecting hole 14 is provided on the lower wall surface, extending vertically upwards from the lower wall surface. The height of the connecting hole 14 is less than half the height of the wall body 10. The upper end of the aforementioned connecting steel bar 20 extends partially through the upper wall surface 13, and the lower end is located within the connecting hole 14. The diameter of the connecting hole 14 is larger than the diameter of the connecting steel bar 20. A grouting hole 15 is also provided on the main wall surface 11, and the grouting hole 15 communicates with the connecting hole 14.

[0021] U-shaped units 30 are also provided on the wall 10. Several groups of U-shaped units 30 are arranged at intervals along the vertical direction on the side wall 12. Each group of U-shaped units 30 includes one or more U-shaped steel bars, which are arranged vertically. The U-shaped steel bars include free ends, which are embedded in the wall 10, so that the U-shaped steel bars enclose a closed area.

[0022] A screw-in unit 40 is also provided on the side wall 12. The screw-in unit 40 is embedded in the wall 10. The screw-in unit 40 includes a threaded tube 41 with internal threads, which is disposed between adjacent U-shaped units 30. Preferably, there is at least one screw-in unit 40.

[0023] A side panel 16 is also provided on the side wall 12. The side panel 16 is set along the vertical direction of the side wall 12. The height of the side panel 16 is the same as the height of the U-shaped unit 30. The side panel 16 is located on one side of any main wall 11.

[0024] In this application, the unsupported shear wall is easy to install and does not require the assistance of other supporting structures during installation. Furthermore, the unsupported shear wall enables rapid assembly, thus improving assembly speed.

[0025] Furthermore, the screw connection unit 40 also includes a reinforcement member 42, which is perpendicularly connected to the screw tube 41, and both the reinforcement member 42 and the screw tube 41 are embedded in the wall 10. When the screw connection unit 40 is embedded, one end of the screw tube 41 is exposed on the surface of the side wall 12 for easy assembly, while the reinforcement member 42 at the other end of the screw tube 41 is located inside the wall 10. By setting the reinforcement member 42, the connection between the screw tube 41 and the wall 10 can be effectively improved.

[0026] Preferably, the screw unit 40 is integrally formed and made of steel.

[0027] Preferably, the side plate 16 is also provided with a clearance groove, which is located on the side of the side plate 16 near the U-shaped unit 30. The U-shaped steel bar includes a first connecting section, a second connecting section and an intermediate section. The first connecting section and the second connecting section each include a connecting end and a free end. The connecting sections of the first connecting section and the second connecting section are connected to both ends of the intermediate section. The free ends of the first connecting section and the second connecting section are embedded in the wall 10. The first connecting section or the second connecting section is located in the clearance groove.

[0028] The purpose of setting the clearance groove is to increase the length of the connection section, so that the area surrounded by the U-shaped steel bar is larger, which can be used to insert more fixed steel bars 60 in the surrounded area, thereby enhancing the connection strength of two adjacent shear walls.

[0029] When assembling the shear wall vertically, the lower shear wall inserts the connecting steel bar 20 into the connecting hole 14 of the upper shear wall, and injects concrete into the connecting hole 14 through the grouting hole 15 to achieve longitudinal connection.

[0030] Based on the same inventive concept, this application also discloses a supportless shear wall assembly for connecting at least two supportless shear walls end-to-end in a straight line, such as... Figure 4-6 Each includes a first shear wall 1A and a second shear wall 1B. Both the first shear wall 1A and the second shear wall 1B are the aforementioned unsupported shear walls. The side plates 16 of the first shear wall 1A and the second shear wall 1B are located on opposite sides of the U-shaped unit 30. The first shear wall 1A and the second shear wall 1B are connected end to end. The U-shaped units 30 of the first shear wall 1A and the U-shaped units 30 of the second shear wall 1B overlap to form an overlapping area. A first connector 50A is also provided on the first shear wall 1A and the second shear wall 1B. The first connector 50A includes a first rectangular body, a first bolt 51 and a second bolt. A first through hole is provided on the first side of the first rectangular body, and a second through hole is provided on the second side opposite to the first side. The first bolt 51 passes through the first through hole and is screwed to the threaded tube 41 of the first shear wall 1A. The second bolt passes through the second through hole and is screwed to the threaded tube 41 of the second shear wall 1B. The first connector 50A is used to initially connect the two adjacent first shear walls 1A and second shear walls 1B.

[0031] To facilitate the tightening of the first bolt 51 and the second bolt, operating holes are also provided on the third and / or fourth sides of the first connector 50A. The first connector 50A is made of steel.

[0032] The first connector 50A extends between the first shear wall 1A and the second shear wall 1B through the gap between the two vertical side plates 16. As the first connector 50A is locked, the U-shaped unit 30 on the first shear wall 1A and the U-shaped unit 30 on the second shear wall 1B overlap to form an overlapping area. At the same time, the side of the overlapping area is surrounded by the side wall surface 12 of the first shear wall 1A and the side plate 16 of the second shear wall 1B.

[0033] At least one fixing steel bar 60 is inserted into the overlapping area, and concrete is poured into the overlapping area. After the concrete has cured, the lateral connection between the first shear wall 1A and the second shear wall 1B is completed. During the assembly process, the first connector 50A completes the connection between the first shear wall 1A and the second shear wall 1B, while the insertion of the fixing steel bar 60 and the solidification of the concrete further enhance the connection strength between the first shear wall 1A and the second shear wall 1B, ensuring that the connection strength between the first shear wall 1A and the second shear wall 1B meets the building codes.

[0034] Preferably, both the first through hole and the second through hole are waist-shaped holes, and the projections of the first through hole and the second through hole on the side wall surface 12 of the first shear wall 1A or the second shear wall 1B are orthogonal.

[0035] The projections of the first through hole and the second through hole are orthogonal, which can reduce the assembly accuracy of the first shear wall 1A and the second shear wall 1B, making it easier to assemble the first shear wall 1A and the second shear wall 1B together.

[0036] This application also provides another type of unsupported shear wall component, such as... Figure 7-9 The third shear wall 1C and the fourth shear wall 1D are both the aforementioned shear walls. The side plates 16 in the third shear wall 1C and the fourth shear wall 1D are located on the same side of the U-shaped unit 30. The third shear wall 1C and the fourth shear wall 1D are connected end to end, and the third shear wall 1C is perpendicular to the fourth shear wall 1D. The U-shaped unit 30 of the third shear wall 1C and the U-shaped unit 30 of the fourth shear wall 1D overlap to form an overlapping area.

[0037] A second connector 50B is also included between the third shear wall 1C and the fourth shear wall 1D. The second connector 50B includes a second rectangular body, a third bolt 53 and a fourth bolt 54. The first side of the second rectangular body is provided with a first through hole and the second side is provided with a second through hole. The first side and the second side are adjacent to each other. The third bolt 53 passes through the first through hole and is screwed to the threaded tube 41 in the third shear wall 1C. The fourth bolt 54 passes through the second through hole and is screwed to the threaded tube 41 in the fourth shear wall 1D.

[0038] The second connector 50B is used for the initial connection between the adjacent third shear wall 1C and fourth shear wall 1D. The second connector 50B is made of steel.

[0039] To facilitate tightening of the third bolt 53 and the fourth bolt 54, the third and / or fourth sides of the second connector 50B are provided with operating holes.

[0040] The second connector 50B extends into the space between the third shear wall 1C and the fourth shear wall 1D through the area spaced by the side plates 16 of the third shear wall 1C and the fourth shear wall 1D. As the second connector 50B is locked, the U-shaped unit 30 on the third shear wall 1C and the U-shaped unit 30 on the fourth shear wall 1D overlap to form an overlapping area. At the same time, the side of the overlapping area is surrounded by the side wall surface 12 of the third shear wall 1C and the side plate 16 of the fourth shear wall 1D.

[0041] At least one fixing steel bar 60 is inserted into the overlapping area, and concrete is poured into the overlapping area. After the concrete has cured, the connection between the third shear wall 1C and the fourth shear wall 1D is completed. Similarly, the insertion of the fixing steel bar 60 and the solidification of the concrete further enhance the connection strength between the third shear wall 1C and the fourth shear wall 1D, ensuring that the connection strength between the third shear wall 1C and the fourth shear wall 1D meets the building codes.

[0042] Preferably, both the first through hole and the second through hole are oblong holes, with the first through hole being horizontal and the second through hole being vertical, or the first through hole being vertical and the second through hole being horizontal.

[0043] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A supportless shear wall, characterized in that, include: The wall (10) includes a main wall surface (11), a side wall surface (12), and an upper wall surface (13) and a lower wall surface disposed above and below the main wall surface (11) and the side wall surface (12). A connecting steel bar (20) is provided in the vertical direction of the wall (10). The upper end of the connecting steel bar (20) extends through the upper wall surface (13). A vertical connecting hole (14) is provided on the lower wall surface. The lower end of the connecting steel bar (20) is located in the connecting hole (14). The main wall surface (11) of the wall (10) is also provided with a grouting hole (15). The grouting hole (15) is connected to the connecting hole (14). Several sets of U-shaped units (30) are arranged at intervals along the vertical direction on the side wall (12). Each set of U-shaped units (30) includes one U-shaped steel bar or multiple U-shaped steel bars arranged along the vertical direction. The free end of the U-shaped steel bar is embedded in the wall (10). A screw unit (40) is provided on the side wall (12). The screw unit (40) includes a screw tube (41), which is provided between any two adjacent U-shaped units (30). Side panels (16), a plurality of side panels (16) are arranged vertically at intervals on the side wall (12), the height of each side panel (16) is the same as the height of each U-shaped unit (30), and the side panels (16) are located on one side of any main wall (11).

2. The unsupported shear wall according to claim 1, characterized in that: The screw unit (40) also includes a reinforcing member (42), which is vertically connected to the screw tube (41) and is embedded in the wall (10).

3. The unsupported shear wall according to claim 2, characterized in that: The screw unit (40) is integrally manufactured.

4. The unsupported shear wall according to claim 2, characterized in that: The side plate (16) is provided with a clearance groove on the side near the U-shaped unit (30). The U-shaped steel bar includes a first connecting section, a second connecting section and a middle section. The first connecting section and the second connecting section respectively include a connecting end and a free end. The connecting ends of the first connecting section and the second connecting section are connected to both ends of the middle section. The free ends of the first connecting section and the second connecting section are embedded in the wall (10). The first connecting section or the second connecting section is located in the clearance groove.

5. A support-free shear wall component, characterized in that, include: The first shear wall (1A) and the second shear wall (1B) are the unsupported shear walls as described in any one of claims 1-4. The side plates (16) of the first shear wall (1A) and the second shear wall (1B) are set on opposite sides of the U-shaped unit (30). The first shear wall (1A) and the second shear wall (1B) are connected end to end. The U-shaped unit (30) of the first shear wall (1A) and the U-shaped unit (30) of the second shear wall (1B) overlap to form an overlapping area. The first connector (50A) includes a first rectangular body, a first bolt (51) and a second bolt. The first rectangular body has a first through hole and a second through hole respectively on a set of opposite sides. The first bolt (51) passes through the first through hole and is connected to the threaded tube (41) of the first shear wall (1A). The second bolt passes through the second through hole and is connected to the threaded tube (41) of the second shear wall (1B). The first rectangular body has an operating hole on another set of opposite sides. The fixed reinforcing bar (60) is inserted vertically into the overlapping area.

6. The unsupported shear wall assembly according to claim 5, characterized in that: The first through hole and the second through hole are waist-shaped holes, and the projections of the first through hole and the second through hole on the side wall surface (12) of the first shear wall (1A) or the second shear wall (1B) are orthogonal.

7. A support-free shear wall component, characterized in that, include: The third shear wall (1C) and the fourth shear wall (1D) are the unsupported shear walls according to any one of claims 1-4. The side plates (16) of the third shear wall (1C) and the fourth shear wall (1D) are arranged on the same side of the U-shaped unit (30). The third shear wall (1C) and the fourth shear wall (1D) are connected end to end and the third shear wall (1C) is perpendicular to the fourth shear wall (1D). The U-shaped unit (30) of the third shear wall (1C) and the U-shaped unit (30) of the fourth shear wall (1D) overlap to form an overlapping area. The second connector (50B) includes a second rectangular body, a third bolt (53) and a fourth bolt (54). The second rectangular body has a first through hole and a second through hole on its adjacent side. The third bolt (53) passes through the first through hole and is connected to the threaded tube (41) of the third shear wall (1C). The fourth bolt (54) passes through the second through hole and is connected to the threaded tube (41) of the fifth shear wall. An operating hole is provided on the other adjacent side of the second rectangular body. Fixed reinforcing bars (60) are inserted into the overlapping area.

8. The unsupported shear wall assembly according to claim 7, characterized in that: The first through hole and the second through hole are oblong holes, with the first through hole being horizontal and the second through hole being vertical; or, the first through hole being vertical and the second through hole being horizontal.

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