Prefabricated shear wall structure for sleeve grouting

Abstract

The utility model discloses a prefabricated shear wall structure for sleeve grouting, which belongs to the technical field of prefabricated buildings, a prefabricated wall body is prefabricated by concrete, longitudinal steel bars and transverse steel bars, one end of each longitudinal steel bar is provided with a grouting sleeve, and the inner wall of each grouting sleeve is communicated with a grouting hole and a grout outlet. The prefabricated wall body is provided with an upper connecting surface, a lower connecting surface, a first side connecting surface and a second side connecting surface, the surface of the upper connecting surface is provided with an upper connecting structure, and the surface of the lower connecting surface is provided with a lower connecting structure. According to the prefabricated shear wall, the horizontal moving position and the vertical moving position of the prefabricated shear wall can be guaranteed when the prefabricated wall and the concrete floor are fixed, the connecting firmness of the prefabricated shear wall and the concrete floor is greatly improved, the connecting position of the upper end of the prefabricated wall and a building can be guaranteed through the upper connecting groove and the upper clamping groove, and then the connecting firmness is improved.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building technology, and more specifically, to a prefabricated shear wall structure with sleeve grouting. Background Technology

[0002] Prefabricated buildings refer to buildings where a large amount of on-site work in traditional construction methods is transferred to factories. Building components and accessories are processed and manufactured in factories, transported to the construction site, and assembled on-site using reliable connection methods. Common examples include prefabricated shear walls with sleeve grouting. After the structure is connected to the floor, the bottom connection surface is mostly flat, which cannot guarantee the horizontal and vertical movement of the structure, thus reducing the connection strength. At the same time, the top connection surface with the building is also flat, which reduces the connection strength.

[0003] For example, CN219343636U discloses a precast shear wall structure for improving the quality of sleeve grouting. The precast shear wall structure includes: a precast wall panel, transverse and longitudinal reinforcing bars disposed in the precast wall panel, and a grouting sleeve disposed at the bottom of the longitudinal reinforcing bars; a groove with a certain height is provided at the bottom of the precast wall panel, and the bottom of the grouting sleeve communicates with the top of the groove.

[0004] As can be seen from the above-mentioned disclosed scheme, the groove set at the bottom of the precast wall panel cannot guarantee the connection strength of its horizontal and vertical positions after being bonded to the floor surface by concrete. This leads to the precast wall panel being tilted or displaced, reducing its connection firmness. Moreover, the top of the precast wall panel is connected to the building by reserved connecting steel bars, but its connection surface is flat, which makes its connection strength insufficient and prone to gaps and cracks, reducing the connection firmness. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a precast shear wall structure with sleeve grouting. This precast shear wall structure with sleeve grouting, through the lower connecting groove and lower locking groove set on the lower connecting surface, can ensure the horizontal and vertical movement positions of the precast wall when it is fixed to the concrete floor, which greatly improves the connection firmness between the precast shear wall and the concrete floor. Furthermore, through the upper connecting groove and upper locking groove, the connection position between the upper end of the precast wall and the building can be guaranteed, thereby improving the connection firmness.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A precast shear wall structure with sleeve grouting includes a precast wall body, which is precast from concrete, longitudinal steel bars, and transverse steel bars. One end of each longitudinal steel bar is provided with a grouting sleeve. The inner wall of the grouting sleeve is connected to an injection hole and a discharge hole. The precast wall body has an upper connecting surface, a lower connecting surface, a first side connecting surface, and a second side connecting surface. The upper connecting surface has an upper connecting structure, and the lower connecting surface has a lower connecting structure. The first side connecting surface has a first side groove, and the second side connecting surface has a second side groove. This sleeve grouting precast shear wall structure, through the lower connecting groove and lower locking groove on the lower connecting surface, ensures the horizontal and vertical movement of the precast wall when it is fixed to the concrete floor, greatly improving the connection strength between the precast shear wall and the concrete floor. Furthermore, the upper connecting groove and upper locking groove ensure the connection position between the upper end of the precast wall and the building, thereby improving the connection strength.

[0008] Furthermore, the upper connecting structure includes an upper connecting groove, with an upper boss in the middle of the upper connecting groove. The center of the longitudinal steel bar and the axis of the upper boss are on the same plane. An upper slot is provided on the side of the upper boss. After the upper connecting groove is bonded to the concrete, it can prevent the upper end of the precast wall body from moving horizontally.

[0009] Furthermore, the lower connecting structure includes a lower connecting groove, the side of which is connected to a recess, a lower boss is provided in the middle of the lower connecting groove, and a lower locking groove is provided on the side of the lower boss. After the lower connecting groove is bonded to the concrete, it can prevent the lower end of the precast wall body from moving horizontally.

[0010] Furthermore, one end of the grouting sleeve is located in the lower slot. Both the lower and upper slots are dovetail-shaped and are staggered. After the lower and upper slots are bonded to the concrete, they can fix the connection strength and firmness between the two ends of the precast wall body and the building, and prevent gaps and cracks from forming at the connection.

[0011] Furthermore, the first side groove is dovetail-shaped and is evenly distributed along the length of the first side connection surface. The first side groove can improve the connection strength between one side of the precast wall body and the building.

[0012] Furthermore, the second side groove is dovetail-shaped and is evenly distributed along the length of the second side connection surface. The second side groove can improve the connection strength between the other side of the precast wall body and the building.

[0013] Furthermore, both the first and second side connecting surfaces are provided with embedded lifting rings, which facilitate the stable lifting of the precast wall body.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) This solution, through the lower connecting groove and lower locking groove set on the lower connecting surface, can ensure the horizontal and vertical movement of the precast wall when it is fixed to the concrete floor, which greatly improves the connection between the precast shear wall and the concrete floor.

[0016] (2) This solution can ensure the connection position between the upper end of the precast wall and the building by setting the upper connecting groove and the upper carding groove, thereby improving the connection firmness. Attached Figure Description

[0017] Figure 1 This is a perspective view of the overall structure of this utility model;

[0018] Figure 2 for Figure 1 A front view of the overall structure;

[0019] Figure 3 for Figure 2 A three-dimensional view of the lower connecting surface structure;

[0020] Figure 4 for Figure 3 A partial cross-sectional view of the lower connecting surface;

[0021] Figure 5 for Figure 1 A partial cross-sectional view of the upper connecting surface.

[0022] Explanation of the labels in the diagram:

[0023] 1. Precast wall body, 11. Upper connecting surface, 12. Lower connecting surface, 13. First side connecting surface, 14. Second side connecting surface, 15. Longitudinal reinforcement, 16. Transverse reinforcement, 17. Embedded lifting ring, 18. Upper connecting groove, 19. Upper boss, 20. Upper slot, 21. Lower connecting groove, 22. Groove, 23. Lower boss, 24. Lower slot, 25. Grouting sleeve, 26. Grouting hole, 27. Grout outlet hole, 28. First side groove, 29. Second side groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] Please see Figures 1-5A precast shear wall structure with sleeve grouting includes a precast wall body 1, which is precast from concrete, longitudinal steel bars 15, and transverse steel bars 16. One end of the longitudinal steel bars 15 is provided with a grouting sleeve 25. The grouting sleeve 25 is existing technology and is used to connect with the building's connecting steel bars for grouting. Its composition and working principle are well known to those skilled in the art and will not be described in detail here. The inner wall of the grouting sleeve 25 is connected to a grouting hole 26 and a grouting outlet 27. The precast wall body 1 is provided with an upper connecting surface 11, a lower connecting surface 12, a first side connecting surface 13, and a second side connecting surface 14. The surface of the upper connecting surface 11 is provided with an upper connecting structure, which includes an upper connecting groove 18. A groove 18 is provided in the middle of the upper connecting groove 18. The wall has an upper boss 19, the center of the longitudinal steel bar 15 is on the same plane as the axis of the upper boss 19, the upper boss 19 has an upper groove 20 on its side, and the upper connecting groove 18 can prevent the upper end of the precast wall body 1 from moving horizontally after being bonded to the concrete. The lower connecting surface 12 has a lower connecting structure, which includes a lower connecting groove 21. The lower connecting groove 21 has a groove 22 connected to its side, and a lower boss 23 is provided in the middle of the lower connecting groove 21. The lower boss 23 has a lower groove 24 on its side. After being bonded to the concrete, the lower connecting groove 21 can prevent the lower end of the precast wall body 1 from moving horizontally. The first side connecting surface 13 has a first side groove 28, and the second side connecting surface 14 has a second side groove 29.

[0027] One end of the grouting sleeve 25 is located in the lower groove 24. Both the lower groove 24 and the upper groove 20 are dovetail-shaped and are staggered. After the lower groove 24 and the upper groove 20 are bonded to the concrete, they can fix the connection strength and firmness between the two ends of the precast wall body 1 and the building, and avoid gaps and cracks at the connection. The second side groove 29 is dovetail-shaped and is evenly distributed along the length of the second side connection surface 14. The second side groove 29 can improve the connection strength between the other side of the precast wall body 1 and the building.

[0028] The first side groove 28 is dovetail shaped and is evenly distributed along the length of the first side connection surface 13. The first side groove 28 can improve the connection strength between one side of the precast wall body 1 and the building. The first side connection surface 13 and the second side connection surface 14 are both provided with embedded lifting rings 17. The embedded lifting rings 17 facilitate the stable lifting of the precast wall body 1.

[0029] In the assembly of the precast shear wall structure using sleeve grouting, a crane lifts the precast wall body 1 by hooking it to two embedded lifting rings 17. Then, the grouting sleeve 25 is connected to the floor slab reinforcement from top to bottom. Grouting and concrete pouring follow, connecting the reinforcement within the grouting sleeve 25 and allowing concrete to solidify in the lower connecting groove 21, lower retaining groove 24, and groove 22. This secures the precast wall body 1 firmly to the floor slab surface. When connecting to the upper structure, concrete solidifies in the upper connecting groove 18 and upper retaining groove 20, ensuring... The connection strength of the upper end of the precast wall body 1 is guaranteed. At the same time, when the two sides of the precast wall body 1 are connected to the building, the connection strength between the two sides and the building can be guaranteed by the first side groove 28 and the second side groove 29. The lower connecting groove 21 and the lower locking groove 24 set on the lower connecting surface can guarantee the horizontal and vertical movement position when the precast wall is fixed to the concrete floor, which greatly improves the connection strength between the precast shear wall and the concrete floor. Furthermore, the upper connecting groove 18 and the upper locking groove 20 can guarantee the connection position between the upper end of the precast wall and the building, thereby improving the connection strength.

[0030] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A prefabricated shear wall structure of sleeve grouting, comprising a prefabricated wall body (1) which is prefabricated by concrete, longitudinal steel bars (15) and transverse steel bars (16), one end of the longitudinal steel bars (15) is provided with a grouting sleeve (25), and the inner wall of the grouting sleeve (25) is communicated with a grouting hole (26) and a grouting outlet hole (27), characterized in that: The prefabricated wall body (1) is provided with an upper connecting surface (11), a lower connecting surface (12), a first side connecting surface (13) and a second side connecting surface (14), the surface of the upper connecting surface (11) is provided with an upper connecting structure, the surface of the lower connecting surface (12) is provided with a lower connecting structure, the surface of the first side connecting surface (13) is provided with a first side groove (28), and the surface of the second side connecting surface (14) is provided with a second side groove (29).

2. A precast shear wall structure of sleeve grouting according to claim 1, characterized in that: The upper connecting structure comprises an upper connecting groove (18), the middle of the upper connecting groove (18) is provided with an upper boss (19), the center of the longitudinal steel bar (15) and the axis of the upper boss (19) are in the same plane, and the side surface of the upper boss (19) is provided with an upper clamping groove (20).

3. A precast shear wall structure of sleeve grouting according to claim 1, characterized in that: The lower connecting structure comprises a lower connecting groove (21), the side surface of the lower connecting groove (21) is communicated with a groove (22), the middle position of the lower connecting groove (21) is provided with a lower boss (23), and the side surface of the lower boss (23) is provided with a lower clamping groove (24).

4. A precast shear wall structure of sleeve grouting according to claim 1, characterized in that: One end of the grouting sleeve (25) is located in the lower clamping groove (24), the shapes of the lower clamping groove (24) and the upper clamping groove (20) are dovetail shapes, and the lower clamping groove (24) and the upper clamping groove (20) are staggered.

5. A precast shear wall structure of sleeve grouting according to claim 1, characterized in that: The first side groove (28) is in a dovetail shape, and the first side groove (28) is distributed at equal intervals along the length direction of the first side connecting surface (13).

6. A precast shear wall structure of sleeve grouting according to claim 1, characterized in that: The second side groove (29) is in a dovetail shape, and the second side groove (29) is distributed at equal intervals along the length direction of the second side connecting surface (14).

7. A precast shear wall structure of sleeve grouting according to claim 1, characterized in that: The side surfaces of the first side connecting surface (13) and the second side connecting surface (14) are both provided with embedded lifting rings (17).

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