Vertical joint connecting structure of prefabricated shear wall without ribs on four sides

Abstract

The utility model relates to the technical field of building component connection, in particular to a vertical joint connecting structure of a prefabricated assembly type shear wall without ribs on four sides, which comprises a prefabricated wall body and a connecting structure, the connecting structures are arranged on the two sides of the prefabricated wall body. Every two adjacent prefabricated wall bodies in the horizontal direction are connected through the connecting structures on the connecting sides of the prefabricated wall bodies, and therefore connection between the two prefabricated wall bodies is achieved. Connecting section formworks are further arranged on the two sides of the prefabricated wall body. The connecting section mold shell is arranged on the outer side of the connecting structure; when the two prefabricated wall bodies connected in the horizontal direction are connected, the outer side ends of the connecting section mold shells abut against each other, and the connecting structure can be wrapped on the inner side.

Description

Technical Field

[0001] This application relates to the technical field of building component connection, and in particular to a vertical joint connection structure for a precast assembled shear wall without reinforcement on four sides. Background Art

[0002] Currently, there are mainly two ways for the vertical connection structure of precast shear wall units. The first is achieved through the splicing method between precast components. Specifically, the precast wall panels are connected through joints, and the steel bars at the joints are connected by sleeve grouting, grout anchor lap connection or lap connection in the reserved post-cast area at the bottom, etc. The second connection method is to connect two shear wall units through the connection structure on the column.

[0003] However, the existing technologies have the following problems:

[0004] (1) Due to the presence of a large number of joints and structural member connection structures at the splicing of precast components, how to ensure that these joints and nodes have sufficient connection strength is a difficult problem faced by the existing technologies. Insufficient connection strength may cause the structure to be damaged when subjected to external forces, affecting the safety and stability of the building.

[0005] (2) Grouting and grout anchor connections require concealed grouting, which may lead to grouting defects, thereby affecting the connection performance; problems such as high construction precision requirements.

[0006] (3) The construction of precast assembled shear wall structures involves the splicing and installation of multiple precast components, and has high requirements for construction quality.

[0007] (4) When using columns to connect two shear walls, the columns will be exposed. On the one hand, it is easy for the columns to age or wear, and on the other hand, it also affects the aesthetics. Utility Model Content

[0008] The purpose of this application is to provide a vertical joint connection structure for a precast assembled shear wall without reinforcement on four sides, so as to solve at least one of the technical problems existing in the prior art.

[0009] To solve the above technical problems, a vertical joint connection structure for a precast assembled shear wall without reinforcement on four sides provided by this application includes a precast wall body and a connection structure;

[0010] The connection structure is arranged on both sides of the precast wall body;

[0011] Two adjacent precast wall bodies in the horizontal direction are connected through the connection structures on their connection sides, so as to realize the connection between the two precast wall bodies.

[0012] Furthermore, connection section formworks are also arranged on both sides of the precast wall body;

[0013] The connecting section formwork is arranged outside the connecting structure;

[0014] When two precast wall bodies connected in the horizontal direction are connected, the outer ends of the connecting section formwork are abutted, and the connecting structure can be wrapped inside.

[0015] Further, the connecting structure includes extended steel bars;

[0016] The extended steel bars are arranged horizontally, one end of which is buried in the precast wall body, and the other end extends out of the precast wall body.

[0017] Further, the connecting structure includes connecting steel bars;

[0018] The connecting steel bars are arranged horizontally and are directly or indirectly connected to the extended steel bars.

[0019] Further, the connecting structure includes concealed column stirrups;

[0020] The concealed column stirrups are arranged horizontally and are directly or indirectly connected to the extended steel bars and the connecting steel bars.

[0021] Preferably, an anchoring plate structure is arranged on a section of the extended steel bar away from the precast wall body.

[0022] Further, the connecting structure includes connecting stirrups;

[0023] The connecting stirrups are arranged vertically, and the inner sides thereof are connected to a plurality of the extended steel bars.

[0024] Preferably, the connecting stirrups are connected to the extended steel bars by welding.

[0025] Preferably, anchoring plate structures are arranged on both sides of the connecting steel bars.

[0026] Further, the connecting structure includes concealed column longitudinal bars;

[0027] The concealed column longitudinal bars are arranged vertically and are used to improve the seismic performance of the shear wall.

[0028] Further, the connecting structure further includes concrete.

[0029] Further, the connecting structure includes a connecting truss;

[0030] The connecting truss includes horizontal erection bars and vertical erection bars;

[0031] The two vertical erection bars are arranged in parallel and are connected by a plurality of the horizontal erection bars;

[0032] The connecting steel bars are fixedly connected to the horizontal erection bars by welding.

[0033] Adopting the above technical solution, the present application has the following beneficial effects:

[0034] (1) By adopting the connecting section formwork design, the connection structure between precast walls is hidden, making the appearance of the walls neat and beautiful.

[0035] (2) The connection structure is protected, reducing contact with the outside world and extending the service life. It enables the precast walls to have no protruding steel bars, facilitating the fabrication, transportation, and on-site connection of precast components.

[0036] (3) Through the arrangement of connection structures such as extended steel bars, connecting steel bars, concealed column stirrups, and connecting stirrups, the tight connection between precast walls is achieved, forming a connection structure with good horizontal punching force effect. This design not only improves the overall stability of the walls but also enhances the seismic performance of the walls.

[0037] (4) The setting of the longitudinal bars of the concealed column and the pouring of concrete further improve the strength and seismic performance of the walls.

[0038] (5) The four-wall sealing structure formed by the connecting section formwork can be used as a construction formwork during concrete pouring, reducing the need for on-site formwork support and improving the assembly efficiency.

[0039] (6) After the connecting steel bars and the extended steel bars are welded with anchor plates at their ends and then lap-connected, the lap load transfer length of the steel bars is significantly reduced, which can reduce on-site wet operations and improve the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0041] Figure 1 It is a three-dimensional structural schematic diagram of the assembled vertical joint connection structure of the precast assembled shear wall without protruding steel bars on four sides provided by the embodiment of the present application;

[0042] Figure 2 It is a three-dimensional structural schematic diagram of a single shear wall;

[0043] Figure 3 For Figure 1 assembly schematic diagram;

[0044] Figure 4 For Figure 2Top view;

[0045] Figure 5 Schematic diagram of the partial three - dimensional structure of the connection structure;

[0046] Figure 6 Schematic diagram of the partial top - down plan view of the connection structure;

[0047] Figure 7 Top view schematic diagram after the shear wall is assembled;

[0048] Figure 8 Schematic diagram of the three - dimensional structure of the connection truss.

[0049] Reference numerals:

[0050] 1 - precast wall; 2 - connection structure; 3 - connection section formwork; 4 - extended steel bars; 5 - connecting steel bars; 6 - concealed column stirrups; 7 - connecting stirrups; 8 - concealed column longitudinal bars; 9 - concrete; 10 - horizontal erection bars; 11 - vertical erection bars. Specific implementation manners

[0051] Next, the technical solutions of the present application will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of them. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

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

[0053] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0054] Next, the present application will be further explained and described in conjunction with specific implementation manners.

[0055] As shown Figure 1 in the figure, a vertical joint connection structure of a precast assembled shear wall without ribs on four sides provided in this embodiment includes a precast wall body 1 and a connection structure 2;

[0056] The connection structure 2 is arranged on both sides of the precast wall body 1;

[0057] Two adjacent precast wall bodies 1 in the horizontal direction are connected through the connection structure 2 on their connection sides, so as to realize the connection between the two precast wall bodies 1.

[0058] As Figure 1 shown in a further embodiment of the present application, connection section formworks 3 are also arranged on both sides of the precast wall body 1;

[0059] The connection section formworks 3 are integrally arranged outside the connection structure 2;

[0060] When two horizontally connected precast wall bodies 1 are connected, the outer ends of the connection section formworks 3 abut against each other, and the connection structure 2 can be wrapped inside.

[0061] When the vertical joint connection structure of the precast assembled shear wall without ribs on four sides disclosed in the present application is assembled, two adjacent precast wall bodies 1 in the horizontal direction are brought close to each other and finally connected through the connection structure 2. After connection, the connection section formworks 3 of the two precast wall bodies 1 abut against each other and wrap the connection structure 2 inside, so that the connection structure 2 cannot be seen on the appearance of the precast wall body 1. Compared with the conventional connection methods through columns or joints, the connection structure 2 is hidden inside. On the one hand, it has an aesthetically neat effect. On the other hand, the connection structure 2 hidden inside the connection section formworks 3 is protected by the connection section formworks 3 and is not easily damaged by contact with the outside, and has a longer service life. In addition, the connection section formworks 3 can act as construction formworks, eliminating the formwork erection time and improving the construction efficiency.

[0062] As Figure 2 shown in a further embodiment of the present application, the connection structure 2 includes extended steel bars 4;

[0063] The extended steel bars 4 are horizontally arranged, one end of which is embedded in the precast wall body 1 and the other end extends outside the precast wall body 1.

[0064] When the vertical joint connection structure of the precast assembled shear wall without ribs on four sides disclosed in the present application is assembled, adjacent shear walls can be assembled and connected by welding or lapping the extended steel bars 4.

[0065] As Figure 3 shown in a further embodiment of the present application, the connection structure 2 includes connecting steel bars 5;

[0066] The connecting steel bars 5 are horizontally arranged and are directly or indirectly connected to the extended steel bars 4.

[0067] During the assembly of the vertical joint connection structure of the precast prefabricated shear wall without steel bars protruding from all four sides disclosed in the present application, the connecting steel bars 5 are arranged between two shear walls and are directly or indirectly connected to the extended steel bars 4. When the connecting steel bars 5 are directly connected to the extended steel bars 4, welding or lapping can be used for connection.

[0068] As Figure 2 shown in a further embodiment of the present application, the connection structure 2 includes concealed column stirrups 6;

[0069] The concealed column stirrups 6 are horizontally arranged and are directly or indirectly connected to the extended steel bars 4 and the connecting steel bars 5.

[0070] As Figure 6 shown in a preferred embodiment of the present application, an anchoring plate structure is provided at a section of the extended steel bar 4 away from the precast wall body 1, and the extended steel bar 4 is connected to the concealed column stirrups 6 through the anchoring plate structure.

[0071] As Figure 4-5 shown in a further embodiment of the present application, the connection structure 2 includes connecting stirrups 7;

[0072] The connecting stirrups 7 are vertically arranged, and the inner sides thereof are connected to a plurality of the extended steel bars 4.

[0073] As Figure 6 shown in a preferred embodiment of the present application, the connection mode between the connecting stirrups 7 and the extended steel bars 4 is welding.

[0074] As Figure 6 shown in a preferred embodiment of the present application, anchoring plate structures are provided on both sides of the connecting steel bars 5, and the connecting steel bars 5 are connected to the connecting stirrups 7 through the anchoring plate structures.

[0075] When the vertical joint connection structure of the precast assembled shear wall without horizontal reinforcement on all four sides disclosed in this application is assembled, the extended reinforcement 4 extends horizontally, and the inner side of the connecting stirrup 7 is welded to the extended reinforcement 4. The concealed column stirrup 6 is directly or indirectly connected to the extended reinforcement 4. The concealed column can be directly lapped or welded with the extended reinforcement 4. In this embodiment, the concealed column stirrup 6 is arranged on the connecting section formwork 3. Since the connecting section formwork 3 is an integral structure of the precast wall 1, and the connecting reinforcement 5 is fixedly connected to the precast wall 1, the concealed column stirrup 6 is indirectly connected to the extended reinforcement 4. To further enhance the structural stability, an anchor plate structure is provided at a section of the extended reinforcement 4 away from the precast wall 1, and the extended reinforcement 4 is connected to the concealed column stirrup 6 through the anchor plate structure. Anchor plate structures are provided on both sides of the connecting reinforcement 5, and the connecting reinforcement 5 is connected to the connecting stirrup 7 through the anchor plate structures. The structure and connection method of the anchor plate are prior arts, and this application does not further limit them. The connecting stirrup 7 and the concealed column stirrup 6 are connected by welding, so that various horizontally and vertically arranged reinforcements and stirrups are tightly connected, and a connection structure 2 of "reinforcement with anchor plate - double-headed anchor plate reinforcement - reinforcement with anchor plate" is formed between the shear walls, having a good horizontal penetration effect.

[0076] As Figure 7 shown in a further embodiment of this application, the connection structure 2 includes concealed column longitudinal bars 8;

[0077] The concealed column longitudinal bars 8 are vertically arranged and are used to improve the seismic performance of the shear wall.

[0078] As Figure 7 shown in a further embodiment of this application, the connection structure 2 further includes concrete 9.

[0079] By arranging the concealed column longitudinal bars 8 and pouring the concrete 9, the shear wall has higher strength and seismic performance. The concrete 9 can be ordinary concrete 9, or high-performance concrete such as ECC or UHPC, which improves the performance of the connecting section and also enhances the overall seismic performance.

[0080] In addition, after the shear walls are spliced horizontally, since a four-wall sealed structure is formed between the connecting section formworks 3, it can be directly used as a construction formwork when pouring the concrete 9, reducing on-site formwork support and improving the assembly efficiency.

[0081] As a preferred embodiment of the present application, the connecting steel bar 5 and the extended steel bar 4 are at the same horizontal height, and the connecting steel bar 5 and the extended steel bar 4 are indirectly lapped and connected. By setting the anchorage plate, the lap length of the steel bars is reduced, and at the same time, the connecting stirrup 7 restricts the concrete of the steel bar connection section, further improving the steel bar connection performance. In addition, after the connecting steel bar 5 and the extended steel bar 4 are respectively connected to the concealed column stirrup 6 and the connecting stirrup 7 through the anchorage plate, a better force transmission effect can be achieved in the horizontal direction.

[0082] As a preferred embodiment of the present application, the precast wall is a solid wall or a multi-ribbed perforated shear wall. The use of a multi-ribbed perforated shear wall can reduce the weight of the shear wall unit and improve the efficiency and quality of on-site connection.

[0083] As a preferred embodiment of the present application, a part of the connecting stirrup 7 is buried inside the wall.

[0084] As a preferred embodiment of the present application, the length of the extended section of the extended steel bar can be designed according to the specifications of the horizontal steel bars to be connected and the size of the shear wall, and it is generally 100 mm to 200 mm.

[0085] As Figure 8 shown in the further embodiment of the present application, the connection structure further includes a connection truss;

[0086] The connection truss includes horizontal erection bars and vertical erection bars;

[0087] The two vertical erection bars are arranged in parallel and connected by a plurality of the horizontal erection bars;

[0088] The connecting steel bar 5 is fixedly connected to the horizontal erection bar by welding.

[0089] By setting the connection truss, multiple connecting steel bars can be moved together during the assembly process and lapped with the extended steel bar, reducing the workload and working difficulty during actual construction and improving work efficiency. In addition, the connection truss connects multiple connecting steel bars into a whole, enhancing the force conduction performance in the vertical direction at the connection of the shear wall.

[0090] As a further embodiment of the present application,

[0091] Adopting the above technical solutions, the present application has the following beneficial effects:

[0092] (1) By adopting the design of the connection section formwork 3, the connection structure 2 between the precast walls 1 is hidden, making the appearance of the wall clean and beautiful.

[0093] (2) The connection structure 2 is protected, reducing contact with the outside world and extending the service life. This enables the precast wall 1 to be free of protruding reinforcement bars, facilitating the fabrication, transportation, and on-site connection of precast components.

[0094] (3) Through the arrangement of the connection structure 2 such as the extended reinforcement bars 4, connection reinforcement bars 5, concealed column stirrups 6, and connection stirrups 7, the tight connection between the precast walls 1 is achieved, forming a connection structure 2 with a good horizontal penetration effect. This design not only improves the overall stability of the wall but also enhances the seismic performance of the wall.

[0095] (4) The arrangement of the concealed column longitudinal reinforcement bars 8 and the pouring of the concrete 9 further improve the strength and seismic performance of the wall.

[0096] (5) The four-wall sealed structure formed by the connection section formwork 3 can serve as a construction formwork during the pouring of the concrete 9, reducing the need for on-site formwork support and improving the assembly efficiency.

Claims

1. A vertical joint connection structure of a prefabricated assembled shear wall without reinforcement on four sides, characterized in that: Includes prefabricated walls and connecting structures; The connection structure is arranged on both sides of the prefabricated wall; Two adjacent prefabricated walls in the horizontal direction are connected via the connecting structure on their connecting sides, thereby achieving connection between the two prefabricated walls; The two sides of the prefabricated wall are also provided with connecting section formworks; The connecting section formwork is arranged outside the connecting structure; When two prefabricated walls connected in a horizontal direction are connected, the outer ends of the connecting section formworks abut against each other, so that the connecting structure can be wrapped inside.

2. The vertical joint connection structure of the prefabricated assembled shear wall without reinforcement on four sides according to claim 1 is characterized in that: The connection structure includes an outrigger steel bar; The outrigger steel bar is arranged horizontally, one end of which is embedded in the prefabricated wall, and the other end of which is extended out of the prefabricated wall.

3. The vertical joint connection structure of the prefabricated assembled shear wall without reinforcement on four sides according to claim 2 is characterized in that: The connection structure includes connecting steel bars; The connecting steel bars are arranged horizontally and are directly or indirectly connected to the extending steel bars.

4. The vertical joint connection structure of the prefabricated assembled shear wall without reinforcement on four sides according to claim 3 is characterized in that: The connection structure includes hidden column stirrups; The hidden column stirrups are arranged horizontally and are directly or indirectly connected to the protruding steel bars and the connecting steel bars.

5. The vertical joint connection structure of the prefabricated assembled shear wall without reinforcement on four sides according to claim 4 is characterized in that: An anchor plate structure is arranged at a section of the outwardly extending steel bar away from the prefabricated wall.

6. The vertical joint connection structure of the prefabricated assembled shear wall without reinforcement on four sides according to claim 3 is characterized in that: The connection structure includes connection stirrups; The connecting stirrups are arranged vertically, and the inner sides thereof are connected to the plurality of the extending steel bars.

7. The vertical joint connection structure of the prefabricated assembled shear wall without reinforcement on four sides according to claim 6 is characterized in that: The connection method of the connecting stirrups and the protruding steel bars is welding.

8. The vertical joint connection structure of the prefabricated assembled shear wall without reinforcement on four sides according to claim 3 is characterized in that: Anchor plate structures are arranged on both sides of the connecting steel bars.

9. The vertical joint connection structure of the prefabricated assembled shear wall without reinforcement on four sides according to claim 1, characterized in that: The connection structure includes concealed column longitudinal reinforcement and concrete; The concealed column longitudinal reinforcement is arranged vertically to improve the seismic performance of the shear wall.

10. The vertical joint connection structure of the prefabricated assembled shear wall without reinforcement on four sides according to claim 3, characterized in that: The connection structure includes a connection truss; The connecting truss comprises horizontal reinforcement bars and vertical reinforcement bars; The two vertical reinforcement bars are arranged parallel to each other and connected by a plurality of horizontal reinforcement bars; The connecting steel bars are fixedly connected to the horizontal frame bars by welding.

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