A vertical steel bar and muscle dislocation lap joint connection composite shear wall

Abstract

The application discloses a vertical steel bar and muscle staggered lap joint connected composite shear wall, wherein the vertical steel bars of the composite shear wall do not protrude from the top surface and the bottom surface of the composite shear wall, vertical additional connecting steel bars are arranged in the cavity near the floor to be connected with the vertical steel bars of the upper and lower composite shear walls, the connection of the vertical steel bars of the upper and lower composite shear walls is realized, and the vertical additional connecting steel bars are arranged in a staggered manner or in a muscle arrangement along the length direction of the composite shear wall. Compared with the double-row parallel arrangement of the common vertical additional connecting steel bars, the vertical additional connecting steel bars of the application have a large net distance from the inner wall of the cavity of the composite shear wall, can allow a large installation error, can effectively improve the on-site installation speed of the composite shear wall, the installation position of the composite shear wall is easy to adjust and has high installation precision, and meanwhile, the adverse effect of the small net distance between the vertical additional connecting steel bars in the cavity on the stress performance can be avoided.

Description

Technical Field

[0001] This invention belongs to the field of building technology, and relates to shear walls, and particularly to a composite shear wall with staggered lap joints of vertical reinforcing bars. Background Technology

[0002] Currently, composite shear wall structures, represented by double-sided composite shear walls and SPCS reinforced welded mesh composite shear walls, are gradually being applied in engineering projects. These composite shear walls consist of two concrete wall panels on both sides and a cavity in the middle. Vertical steel bars, horizontal steel bars, and stirrups are arranged inside the concrete wall panels on both sides. The concrete wall panels on both sides are connected as a whole by truss steel bars or welded steel mesh. In the overall structure, the vertical steel bars of the upper and lower composite shear walls are connected by lap splices. The steel bar connection can be achieved by pouring concrete in the cavity on site. Its on-site construction management is similar to that of traditional cast-in-place structures, without complex and delicate work such as sleeve grouting, and it is gradually gaining attention from construction units.

[0003] Currently, in composite shear wall structures, the vertical reinforcement of the edge members of the upper and lower composite shear walls and the vertical distribution reinforcement of the wall body are mostly connected by additional vertical connecting reinforcement. The additional vertical connecting reinforcement is arranged in the cavity of the composite shear wall. The existing composite shear wall structure and the Chinese national design standard "Technical Standard for Prefabricated Concrete Buildings" GB / T 51231-2016 both require that the additional vertical connecting reinforcement be arranged in two rows along the thickness of the wall in the cavity. At the same time, in order to avoid the net distance between the two rows of additional vertical connecting reinforcement being too small, which would cause stress concentration and weaken the force transmission performance of the reinforcement lap joint, it is necessary to ensure that the net distance between the two rows of additional vertical connecting reinforcement is large. Considering that the cavity dimensions along the wall thickness direction are between 80 and 150 mm, the net distance between the additional vertical connecting steel bars and the inner wall of the cavity is mostly less than 15 mm. At the same time, the additional vertical connecting steel bars are difficult to position on site and are easily affected by construction disturbances, causing deviations. During the installation of the composite shear wall, the additional vertical connecting steel bars are prone to collision with the inner wall of the composite shear wall and the stirrups in the cavity, interfering with the installation of the composite shear wall, seriously affecting the installation speed of the composite shear wall. Moreover, after the composite shear wall is installed, it is stuck by the additional vertical connecting steel bars, making it difficult to adjust the installation accuracy, which affects the overall construction quality. Summary of the Invention

[0004] To overcome the shortcomings and quality risks of existing composite shear wall structures with additional vertical reinforcement, this invention aims to provide a composite shear wall with staggered lap joints of vertical reinforcement. The additional vertical reinforcement in the edge members and the wall body is arranged either staggered or parallel along the length of the composite shear wall within the cavity. In this invention, the net distance between the additional vertical reinforcement in the edge members and the wall body and the inner wall of the cavity can be increased by more than 10mm compared to existing composite shear walls for the same wall thickness, thus improving the installation speed and accuracy of the composite shear wall.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A composite shear wall with staggered lap joints of vertical reinforcing bars is composed of two concrete wall panels 11 on both sides and a cavity 12 in the middle. Vertical reinforcing bars, horizontal reinforcing bars and stirrups are arranged in the concrete wall panels 11 on both sides. The concrete wall panels 11 on both sides are connected as a whole by truss reinforcing bars or welded steel mesh. Vertical additional connecting reinforcing bars are arranged near the floor slab 4 in the cavity 12 and lap joint with the vertical reinforcing bars of the upper and lower composite shear walls. The vertical additional connecting reinforcing bars are arranged staggered or parallel to the vertical reinforcing bars along the length of the composite shear wall 1 in the cavity 12 to increase the net distance between the vertical additional connecting reinforcing bars and the inner wall of the cavity 12, thereby improving the installation speed and installation accuracy of the composite shear wall 1.

[0007] The vertical additional connecting reinforcement includes vertical additional connecting reinforcement 24 for edge members and vertical additional connecting reinforcement 32 for the wall body area. The total cross-sectional area of ​​the vertical additional connecting reinforcement 24 for edge members is not less than the total cross-sectional area of ​​the vertical reinforcement 21 for edge members in the corresponding composite shear wall 1, and the total cross-sectional area of ​​the vertical additional connecting reinforcement 32 for the wall body area is not less than the total cross-sectional area of ​​the vertical distribution reinforcement 31 in the corresponding composite shear wall 1.

[0008] The vertical additional connecting steel bars 24 of the edge members and the vertical additional connecting steel bars 32 of the wall area are staggered along the length of the composite shear wall 1 in the cavity 12, forming a quincunx pattern. This ensures that the net distance between the vertical additional connecting steel bars 24 of the edge members and the vertical additional connecting steel bars 32 of the wall area and the inner wall of the cavity 12 is not less than 20mm, and the net distance between the vertical additional connecting steel bars 24 of adjacent edge members and the vertical additional connecting steel bars 32 of adjacent wall areas is not less than 50mm, taking into account both the on-site installation of the composite shear wall 1 and the force transmission performance of the lap joint of the vertical steel bars.

[0009] When the vertical additional connecting steel bars 24 of the edge member are staggered along the length of the composite shear wall 1, the number of vertical additional connecting steel bars 24 of the edge member is the same as that of the vertical steel bars 21 of the edge member; or, the number of vertical additional connecting steel bars 24 of the edge member is less than that of the vertical steel bars 21 of the edge member, and the diameter of the vertical additional connecting steel bars 24 of the edge member is increased to ensure that the total cross-sectional area of ​​the vertical additional connecting steel bars 24 of the edge member is not less than the total cross-sectional area of ​​the corresponding vertical steel bars 21 of the edge member.

[0010] When the vertical additional connecting steel bars 32 in the wall area are staggered along the length of the composite shear wall 1, the number of vertical additional connecting steel bars 32 in the wall area is the same as that of the vertical distributed steel bars 31.

[0011] When the diameter of the vertical reinforcement 21 of the inner edge member of the composite shear wall 1 does not exceed 18mm, the vertical additional connecting reinforcement 24 of the edge member and the vertical additional connecting reinforcement 32 of the wall body area are arranged in double rows along the length of the wall in the cavity 12 to ensure that the net distance between the vertical additional connecting reinforcement 24 of the edge member and the vertical additional connecting reinforcement 32 of the wall body area and the inner wall of the cavity 12 is not less than 25mm; or, the vertical additional connecting reinforcement 24 of the edge member and the vertical additional connecting reinforcement 32 of the wall body area are arranged in a single row along the length of the wall in the cavity 12 to ensure that the net distance between the vertical additional connecting reinforcement 24 of the edge member and the vertical additional connecting reinforcement 32 of the wall body area and the inner wall of the cavity 12 is not less than 30mm.

[0012] When the reinforcement is arranged in parallel, the clear distance between the vertical additional connecting reinforcement 24 of the adjacent edge members and the vertical additional connecting reinforcement 32 of the adjacent wall area is between 5 and 30 mm.

[0013] The vertical additional connecting steel bars 24 of the edge members and the vertical additional connecting steel bars 32 of the wall area are not of continuous height in the longitudinal direction, as long as they meet the requirements for lap stress.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] (1) The vertical additional connecting steel bars in the cavity of the composite shear wall have a large net distance from the inner wall of the cavity, which avoids collision between the vertical additional connecting steel bars and the inner wall of the cavity, the stirrups and tie bars of the edge members of the composite shear wall during the installation process, and can improve the installation speed of the composite shear wall.

[0016] (2) After the composite shear wall is installed and positioned, the vertical additional connecting steel bars in the cavity are far from the inner wall of the cavity, the stirrups and tie bars of the edge members of the composite shear wall. This avoids the vertical additional connecting steel bars in the cavity from getting stuck in the composite shear wall, which would cause the installation accuracy of the composite shear wall to be unable to be adjusted after it is positioned, thus ensuring the accuracy of the composite shear wall. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the staggered lap splicing connection of the vertical reinforcing bars of the upper and lower layer composite shear walls of the present invention.

[0018] Figure 2 for Figure 1 Schematic diagram of section AA.

[0019] Figure 3 for Figure 1 Schematic diagram of the BB section.

[0020] Figure 4 for Figure 3 A schematic diagram of an improved composite shear wall.

[0021] Figure 5 for Figure 3 , Figure 4 The diagram shows a comparative example of a composite shear wall, specifically a schematic diagram of the lapped connection of vertical reinforcing bars in existing upper and lower composite shear walls.

[0022] Figure 6 This is a schematic diagram of the construction of the vertical steel bars of the upper and lower layer composite shear walls of the present invention, showing the lap splicing connection.

[0023] Figure 7 for Figure 6 A schematic diagram of an improved version of the composite shear wall.

[0024] Figure 8 for Figure 6 A schematic diagram of the improved version 2 of the composite shear wall.

[0025] In the diagram: 1-Composite shear wall; 11-Concrete wall panel; 12-Cavity; 13-Lower layer composite shear wall; 14-Upper layer composite shear wall; 2-Edge member area; 21-Vertical reinforcement of edge member; 22-Stirrups of edge member; 23-Tie bar; 24-Vertical additional connecting reinforcement of edge member; 3-Wall area; 31-Vertical distributed reinforcement; 32-Vertical additional connecting reinforcement of wall area; 4-Floor slab. Detailed Implementation

[0026] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings and examples.

[0027] like Figures 1 to 8 As shown, a composite shear wall with staggered lap joints of vertical reinforcing bars is disclosed. The composite shear wall 1 consists of two concrete wall panels 11 on both sides and a cavity 12 in the middle. Vertical reinforcing bars, horizontal reinforcing bars, and stirrups are arranged inside the two concrete wall panels 11. The two concrete wall panels 11 are connected as a whole by truss reinforcing bars or welded steel mesh. In the overall structure, additional vertical connecting reinforcing bars are provided in the cavity 12 near the floor slab 4 and lapped with the vertical reinforcing bars in the lower composite shear wall 13 and the upper composite shear wall 14.

[0028] The vertical additional connecting reinforcement includes the vertical additional connecting reinforcement 24 of the edge member and the vertical additional connecting reinforcement 32 of the wall area. The two are staggered or arranged together along the length of the composite shear wall 1 in the cavity 12, thereby increasing the net distance b between the vertical additional connecting reinforcement 24 of the edge member and the vertical additional connecting reinforcement 32 of the wall area and the inner wall of the cavity 12, and improving the installation speed and installation accuracy of the composite shear wall 1.

[0029] Among them, the total cross-sectional area of ​​the vertical additional connecting steel bars 24 of the edge members is not less than the total cross-sectional area of ​​the vertical steel bars 21 of the edge members in the corresponding composite shear wall 1, and the total cross-sectional area of ​​the vertical additional connecting steel bars 32 of the wall area is not less than the total cross-sectional area of ​​the vertical distributed steel bars 31 in the corresponding composite shear wall 1.

[0030] To balance the on-site installation of the composite shear wall 1 with the load transfer performance of the vertical reinforcement lap joints, the additional vertical connecting bars 24 of the edge members and the additional vertical connecting bars 32 of the wall body are preferentially staggered along the length of the composite shear wall 1 within the cavity 12, arranged in a staggered pattern. At this time, the net distance b between the additional vertical connecting bars 24 of the edge members and the additional vertical connecting bars 32 of the wall body and the inner wall of the cavity 12 is not less than 20mm. This avoids collisions between the additional vertical connecting bars 24 of the edge members and the additional vertical connecting bars 32 of the wall body and the inner wall of the cavity 12, the stirrups 22 of the edge members, and the tie bars 23 during the installation of the upper composite shear wall 14, thus improving the installation speed and accuracy of the upper composite shear wall 14. The net distance c between adjacent additional vertical connecting bars 24 of the edge members and the additional vertical connecting bars 32 of the wall body is not less than 50mm to avoid stress concentration caused by excessively small net distance c, ensuring the load transfer performance of the vertical reinforcement lap joints.

[0031] Specifically, the number of vertical additional connecting steel bars 24 of the edge members arranged in a staggered manner along the length of the composite shear wall 1 is the same as the number of vertical steel bars 21 of the edge members inside the composite shear wall 1; or, the number of vertical additional connecting steel bars 24 of the edge members is less than the number of vertical steel bars 21 of the edge members inside the composite shear wall 1, and the diameter of the vertical additional connecting steel bars 24 of the edge members is increased to ensure that the total cross-sectional area of ​​the vertical additional connecting steel bars 24 of the edge members is not less than the total cross-sectional area of ​​the vertical steel bars 21 of the corresponding edge members inside the composite shear wall 1.

[0032] Furthermore, when the diameter of the vertical reinforcement 21 of the inner edge member of the composite shear wall 1 does not exceed 18mm, the impact of stress concentration caused by the small clear distance c on the force transmission performance of the reinforcement lap joint is acceptable. The vertical additional connecting reinforcement 24 of the edge member and the vertical additional connecting reinforcement 32 of the wall area can be arranged in double rows along the length of the wall in the cavity 12 to ensure that the clear distance b between the vertical additional connecting reinforcement 24 of the edge member and the vertical additional connecting reinforcement 32 of the wall area and the inner wall of the cavity 12 is not less than 25mm; or, the vertical additional connecting reinforcement 24 of the edge member and the vertical additional connecting reinforcement 32 of the wall area can be arranged in a single row along the length of the wall in the cavity 12 to ensure that the clear distance b between the vertical additional connecting reinforcement 24 of the edge member and the vertical additional connecting reinforcement 32 of the wall area and the inner wall of the cavity 12 is not less than 30mm.

[0033] Specifically, the net distance c between the vertical additional connecting steel bars 24 of the adjacent edge members and the vertical additional connecting steel bars 32 of the wall area is between 5 and 30 mm. The number of vertical additional connecting steel bars 24 of the edge members is the same as the vertical steel bars 21 of the corresponding edge members in the composite shear wall 1. The number of vertical additional connecting steel bars 32 of the wall area is the same as the vertical distributed steel bars 31 in the corresponding composite shear wall 1.

[0034] Figures 1-3 A schematic diagram of a composite shear wall with staggered lap splicing of vertical reinforcing bars according to the present invention is provided. The additional vertical connecting bars 24 for the edge members and the additional vertical connecting bars 32 for the wall body are preferentially staggered along the length of the composite shear wall 1 within the cavity 12, arranged in a staggered pattern. The number of additional vertical connecting bars 24 for the edge members is the same as the corresponding vertical reinforcing bars 21 for the edge members within the composite shear wall 1, and the diameter of the additional vertical connecting bars 24 for the edge members is not less than that of the corresponding vertical reinforcing bars 21 for the edge members within the composite shear wall 1. The number of additional vertical connecting bars 32 for the wall body is the same as the corresponding vertical distributed reinforcing bars 31 for the composite shear wall 1, and the diameter of the additional vertical connecting bars 32 for the wall body is not less than that of the corresponding vertical distributed reinforcing bars 31 for the composite shear wall 1.

[0035] At this time, the net distance b between the vertical additional connecting steel bars 24 of the edge members and the vertical additional connecting steel bars 32 of the wall area and the inner wall of the cavity 12 is not less than 20mm. This can prevent the vertical additional connecting steel bars 24 of the edge members and the vertical additional connecting steel bars 32 of the wall area from the inner wall of the cavity 12, the stirrups 22 and the tie bars 23 of the edge members during the installation of the upper composite shear wall 14, thereby improving the installation speed and accuracy of the upper composite shear wall 14. The net distance c between the vertical additional connecting steel bars 24 of the adjacent edge members and the vertical additional connecting steel bars 32 of the adjacent wall area is not less than 50mm. This can prevent stress concentration caused by too small a net distance c and ensure the lap force transmission performance of the vertical steel bars.

[0036] Figure 4 for Figures 1-3 The improved version of the composite shear wall shown is improved by having fewer vertical additional connecting bars 24 in the edge members than the vertical connecting bars 21 in the edge members of the composite shear wall 1. This facilitates the arrangement of the vertical additional connecting bars 24 in the edge members within the cavity 12 and further increases the clear distance between the vertical additional connecting bars 24 and the stirrups 22 and tie bars 23 in the edge members, preventing mutual interference. At this point, the diameter of the vertical additional connecting bars 24 in the edge members needs to be increased to ensure that the total cross-sectional area of ​​the vertical additional connecting bars 24 in the edge members is not less than the total cross-sectional area of ​​the vertical connecting bars 21 in the corresponding edge members of the composite shear wall 1.

[0037] Figure 5The diagram shows a schematic representation of the lapped connection of vertical reinforcing bars in the upper and lower layers of a conventional composite shear wall structure, serving as a comparative example of this invention. The additional vertical reinforcing bars 24 for the edge members and 32 for the wall body are arranged in double rows along the thickness direction of the composite shear wall 1 within the cavity 12. To avoid excessively small net distance c between the double rows of additional vertical reinforcing bars, which could cause stress concentration and weaken the force transmission performance of the lapped connection, and because the dimension a of the cavity 12 along the wall thickness direction is between 80 and 150 mm, the net distance b between the additional vertical reinforcing bars 24 for the edge members and 32 for the wall body and the inner wall of the cavity 12 is mostly less than 15 mm. Compared to the comparative example, under the same cavity dimension a, Figures 1-4 As shown in the invention, the net distance b between the vertical additional connecting steel bars 24 of the edge component and the vertical additional connecting steel bars 32 of the wall area and the inner wall of the cavity 12 can be increased by more than 10mm. This effectively avoids collisions between the vertical additional connecting steel bars 24 of the edge component and the vertical additional connecting steel bars 32 of the wall area and the inner wall of the cavity 12 of the composite shear wall 1, as well as the stirrups 22 and tie bars 23 of the edge component, during the installation of the composite shear wall 1. This can improve the installation speed and installation accuracy of the composite shear wall 1.

[0038] Figure 6 The diagram shows a schematic of the lapped connection of vertical reinforcing bars in the upper and lower layers of the composite shear wall according to the present invention. This method is applicable when the diameter of the vertical reinforcing bars 21 in the inner edge members of the composite shear wall 1 does not exceed 18mm. In this case, the stress concentration caused by the small net distance c has an acceptable impact on the force transmission performance of the lapped reinforcement. The additional vertical connecting reinforcing bars 24 in the edge members and the additional vertical connecting reinforcing bars 32 in the wall area are arranged in double rows along the length of the wall within the cavity 12, ensuring that the net distance b between the additional vertical connecting reinforcing bars 24 in the edge members and the additional vertical connecting reinforcing bars 32 in the wall area and the inner wall of the cavity 12 is not less than 25mm. The net distance c between adjacent additional vertical connecting reinforcing bars 24 in the edge members and the additional vertical connecting reinforcing bars 32 in the wall area is between 5 and 30mm. The number of additional vertical connecting reinforcing bars 24 in the edge members is the same as the corresponding vertical reinforcing bars 21 in the inner edge members of the composite shear wall 1, and the number of additional vertical connecting reinforcing bars 32 in the wall area is the same as the corresponding vertical distributed reinforcing bars 31 in the composite shear wall 1.

[0039] Figure 7 As shown Figure 6 Improved version one, with additional vertical connecting steel bars 24 for edge members and additional vertical connecting steel bars 32 for the wall area. Figure 6 Based on this, the shear walls are staggered by 5 to 30 mm along the length of the composite shear wall 1.

[0040] Figure 8 As shown Figure 6The second improvement is that the vertical additional connecting steel bars 24 of the edge components and the vertical additional connecting steel bars 32 of the wall area are arranged in a single row along the length of the wall in the cavity 12, so as to ensure that the net distance b between the vertical additional connecting steel bars 24 of the edge components and the vertical additional connecting steel bars 32 of the wall area and the inner wall of the cavity 12 is not less than 30mm, and the net distance c between adjacent vertical additional connecting steel bars 24 of the edge components and vertical additional connecting steel bars 32 of the wall area is between 5 and 30mm.

[0041] In summary, the vertical additional connecting steel bars of the edge members and the vertical additional connecting steel bars of the wall body area of ​​the composite shear wall of the present invention are staggered or arranged together along the length of the composite shear wall in the cavity. The net distance between the vertical additional connecting steel bars of the edge members and the vertical additional connecting steel bars of the wall body area and the inner wall of the cavity can be increased by more than 10mm compared with the existing composite shear wall under the same wall thickness, which can improve the installation speed and installation accuracy of the composite shear wall.

[0042] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations and substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A composite shear wall with staggered lap splicing of vertical reinforcing bars, comprising two concrete wall panels (11) on both sides and a cavity (12) in the middle, wherein vertical reinforcing bars, horizontal reinforcing bars and stirrups are arranged inside the two concrete wall panels (11), and the two concrete wall panels (11) are connected as a whole by truss reinforcing bars or welded steel mesh, characterized in that, Vertical additional connecting bars are set near the floor slab (4) in the cavity (12) and lapped with the vertical bars of the upper and lower layer composite shear walls. The vertical additional connecting bars are arranged staggered or parallel to the vertical bars along the length of the composite shear wall (1) in the cavity (12) to increase the net distance between the vertical additional connecting bars and the inner wall of the cavity (12) and improve the installation speed and installation accuracy of the composite shear wall (1). The vertical additional connecting bars include vertical additional connecting bars (24) for edge members and vertical additional connecting bars (32) for the wall area. The additional connecting steel bars (24) and the vertical additional connecting steel bars (32) in the wall area are staggered along the length of the composite shear wall (1) in the cavity (12) in a quincunx pattern, ensuring that the net distance between the vertical additional connecting steel bars (24) of the edge members and the vertical additional connecting steel bars (32) of the wall area and the inner wall of the cavity (12) is not less than 20mm, and the net distance between the vertical additional connecting steel bars (24) of the adjacent edge members and the vertical additional connecting steel bars (32) of the adjacent wall area is not less than 50mm, taking into account the on-site installation of the composite shear wall (1) and the lap force transmission performance of the vertical steel bars.

2. The composite shear wall with staggered lap splices of vertical reinforcing bars according to claim 1, characterized in that, The total cross-sectional area of ​​the vertical additional connecting steel bars (24) of the edge member is not less than the total cross-sectional area of ​​the vertical steel bars (21) of the edge member in the corresponding composite shear wall (1), and the total cross-sectional area of ​​the vertical additional connecting steel bars (32) of the wall body area is not less than the total cross-sectional area of ​​the vertical distributed steel bars (31) in the corresponding composite shear wall (1).

3. The composite shear wall with staggered lap splices of vertical reinforcing bars according to claim 1, characterized in that, When the vertical additional connecting steel bars (24) of the edge member are staggered along the length direction of the composite shear wall (1), the number of vertical additional connecting steel bars (24) of the edge member is the same as that of the vertical steel bars (21) of the edge member; or, the number of vertical additional connecting steel bars (24) of the edge member is less than that of the vertical steel bars (21) of the edge member, and the diameter of the vertical additional connecting steel bars (24) of the edge member is increased to ensure that the total cross-sectional area of ​​the vertical additional connecting steel bars (24) of the edge member is not less than the total cross-sectional area of ​​the corresponding vertical steel bars (21) of the edge member.

4. The composite shear wall with staggered lap splices of vertical reinforcing bars according to claim 1, characterized in that, When the vertical additional connecting steel bars (32) in the wall area are staggered along the length of the composite shear wall (1), the number of vertical additional connecting steel bars (32) in the wall area is the same as that of the vertical distributed steel bars (31).

5. The composite shear wall with staggered lap splices of vertical reinforcing bars according to claim 1, characterized in that, When the diameter of the vertical reinforcement (21) of the inner edge member of the composite shear wall (1) does not exceed 18mm, the vertical additional connecting reinforcement (24) of the edge member and the vertical additional connecting reinforcement (32) of the wall body area are arranged in double rows along the length of the wall in the cavity (12) to ensure that the net distance between the vertical additional connecting reinforcement (24) of the edge member and the vertical additional connecting reinforcement (32) of the wall body area and the inner wall of the cavity (12) is not less than 25mm; or, the vertical additional connecting reinforcement (24) of the edge member and the vertical additional connecting reinforcement (32) of the wall body area are arranged in single rows along the length of the wall in the cavity (12) to ensure that the net distance between the vertical additional connecting reinforcement (24) of the edge member and the vertical additional connecting reinforcement (32) of the wall body area and the inner wall of the cavity (12) is not less than 30mm.

6. The composite shear wall with staggered lap splices of vertical reinforcing bars according to claim 5, characterized in that, The clear distance between the vertical additional connecting bars (24) of the adjacent edge members and the vertical additional connecting bars (32) of the adjacent wall area is between 5 and 30 mm.

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