A dry connection structure of a prefabricated double-sided laminated shear wall and a prefabricated beam

Abstract

This application discloses a dry connection structure for a prefabricated double-sided composite shear wall and a prefabricated beam, including a double-sided composite shear wall, a prefabricated beam, and multiple fasteners. The double-sided composite shear wall has a slot extending along its thickness direction. A beam end connector is provided at the end of the prefabricated beam, which is inserted into the slot. The beam end connector has multiple mating plates, each located in a different plane and conforming to the inner wall of the slot, forming an operating cavity between the mating plates. Each fastener passes through the corresponding mating plate from one side of the operating cavity and connects to the double-sided composite shear wall. The dry connection structure for the prefabricated double-sided composite shear wall and prefabricated beam provided by this application simplifies the pre-connection process, eliminating the need for specialized welding technicians. The multiple mating plates of the beam end connector conform to the inner wall of the slot, providing multi-directional positioning and easily ensuring accurate pre-installation of the double-sided composite shear wall and prefabricated beam.

Description

Technical Field

[0001] This utility model relates to the field of building technology, specifically to a dry connection structure between a prefabricated double-sided composite shear wall and a prefabricated beam. Background Technology

[0002] In prefabricated buildings, precast double-sided composite shear walls are widely used due to their reliable connections and low installation difficulty, while precast beams have become mainstream due to their factory production and rapid on-site installation. However, the pre-positioned connection between shear walls and horizontal structures in existing prefabricated concrete buildings is mostly achieved through welding. Welding is a cumbersome operation, requires specialized technicians, and is prone to inaccurate positioning after welding.

[0003] In view of the above, this utility model is hereby proposed. Utility Model Content

[0004] To solve one of the above-mentioned technical problems, this utility model provides a dry connection structure for prefabricated double-sided composite shear wall and prefabricated beam.

[0005] This application provides the following technical solution: A dry connection structure between a precast double-sided composite shear wall and a precast beam includes: A double-sided composite shear wall, wherein the double-sided composite shear wall has a slot that extends along the thickness direction of the double-sided composite shear wall; A precast beam, wherein the end of the precast beam is provided with a beam end connector, the beam end connector is inserted into the slot, the beam end connector has multiple mating plates, each mating plate is located in a different plane, each mating plate is attached to the inner wall of the slot, and an operating cavity is formed between each mating plate; Multiple fasteners, each of which passes through a corresponding mating plate from one side of the operating cavity and is connected to the double-sided composite shear wall.

[0006] Optionally, the double-sided composite shear wall includes an outer wall panel and an inner wall panel, with a casting cavity between the outer wall panel and the inner wall panel; The slot is provided on the inner wall panel, and the slot is connected to the casting cavity.

[0007] Optionally, the slot includes a bottom wall and side walls located on both sides of the bottom wall; Each mating plate of the beam end connecting seat includes a base plate and side plates located on both sides of the base plate; With the beam end connector inserted into the slot, the base plate is attached to the bottom wall, and the two side plates are respectively attached to the corresponding side walls; The fasteners include horizontal fasteners and vertical fasteners; The horizontal fastener passes through the side plate and is connected to the side wall, and the vertical fastener passes through the bottom plate and is connected to the bottom wall.

[0008] Optionally, reinforcing ribs are connected between the base plate and the side plate.

[0009] Optionally, it includes a first pre-embedded internal threaded cylinder and a second pre-embedded internal threaded cylinder; The first and second pre-embedded internal threaded cylinders are both pre-embedded in the double-sided composite shear wall, and the insertion port of the first pre-embedded internal threaded cylinder is exposed on the side wall, while the insertion port of the second pre-embedded internal threaded cylinder is exposed on the bottom wall. One end of the transverse fastener passes through the side plate and is threaded to the first pre-embedded internal thread cylinder; One end of the vertical fastener passes through the base plate and is threadedly connected to the second pre-embedded internal thread cylinder.

[0010] Optionally, a bottom hole is provided on the base plate, the bottom hole extending along the thickness direction of the double-sided composite shear wall, and the vertical fastener is provided through the bottom hole; The side plate is provided with a side hole, which extends along the height direction of the double-sided composite shear wall, and the transverse fastener is provided through the side hole.

[0011] Optionally, it may include a resilient pad; The elastic pad is located between the inner wall of the slot and each mating plate of the end beam connector.

[0012] Optionally, it includes a pre-embedded seat, the pre-embedded seat having a pre-embedded portion and an exposed portion; The embedded part is located inside the precast beam, and the exposed part is exposed on the surface of the precast beam; The end beam connector is connected to the exposed portion.

[0013] Optionally, the exposed portion includes a steel plate; The embedded part includes multiple embedded ribs, one end of each embedded rib is vertically connected to the steel plate, and the other end is bent to form a bent section; The steel plate is exposed on the surface of the end beam; The end beam connector is fixed to the steel plate.

[0014] Optionally, the beam end connector is connected to the steel plate by fasteners; Alternatively, the beam end connector is welded to the steel plate.

[0015] By adopting the above technical solution, this application has the following beneficial effects: The dry connection structure between the prefabricated double-sided composite shear wall and the prefabricated beam provided in this application has a simple pre-connection process that does not require the operation of welding professionals. Multiple mating plates of the beam end connector fit against the inner wall of the slot, providing multi-directional positioning, which can easily ensure the accurate pre-installation position of the double-sided composite shear wall and the prefabricated beam. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are merely some embodiments, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0017] Figure 1 This is a schematic diagram of the main sectional view of the dry connection structure between the prefabricated double-sided composite shear wall and the prefabricated beam provided in an embodiment of the present invention. Figure 2 for Figure 1 A magnified view of a section at point A in the middle; Figure 3 This diagram shows a side sectional view of the dry connection structure between the prefabricated double-sided composite shear wall and the prefabricated beam provided in an embodiment of the present invention.

[0018] In the figure: double-sided composite shear wall 1, outer wall panel 11, inner wall panel 12, slot 121, bottom wall 1211, side wall 1212, casting cavity 13, precast beam 2, beam end connector 21, bottom plate 211, bottom hole 2111, side plate 212, side hole 2121, operating cavity 213, reinforcing rib 214, fastener 3, horizontal fastener 31, vertical fastener 32, first embedded internal threaded cylinder 4, second embedded internal threaded cylinder 5, elastic pad 6, embedded seat 7, embedded part 71, exposed part 72. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0020] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] like Figures 1 to 3 As shown, this application embodiment provides a dry connection structure between a prefabricated double-sided composite shear wall and a prefabricated beam, including a double-sided composite shear wall 1, a prefabricated beam 2, and multiple fasteners 3. The double-sided composite shear wall 1 has a slot 121 extending along the thickness direction of the double-sided composite shear wall 1. The end of the prefabricated beam 2 is provided with a beam end connecting seat 21, which is inserted into the slot 121. The beam end connecting seat 21 has multiple mating plates, each mating plate located in a different plane, and each mating plate is attached to the inner wall of the slot 121, forming an operating cavity 213 between the mating plates. Each of the fasteners 3 passes through the corresponding mating plate from one side of the operating cavity 213 and is connected to the double-sided composite shear wall 1.

[0023] The dry connection structure between the precast double-sided composite shear wall and the precast beam provided in this application features a slot 121 on the shear wall and a beam end connector 21 on the precast beam 2. The beam end connector 21 is inserted into the slot 121, and then fasteners 3 are used to connect the beam end connector 21 and the slot 121. The pre-connection process is simple and does not require the operation of welding professionals. Multiple mating plates of the beam end connector 21 fit against the inner wall of the slot 121, providing multi-directional positioning, which can easily ensure the accurate pre-installation position of the double-sided composite shear wall 1 and the precast beam 2.

[0024] The operating cavity 213 allows operators to place the fasteners 3 into the beam end connecting seat 21 and connect the double-sided composite shear wall 1.

[0025] In some possible implementations, the double-sided composite shear wall 1 includes an outer wall panel 11 and an inner wall panel 12, with a casting cavity 13 between the outer wall panel 11 and the inner wall panel 12. A slot 121 is provided on the inner wall panel 12, and the slot 121 communicates with the casting cavity 13. After the pre-connection is stabilized, concrete can be poured into the casting cavity 13. When pouring concrete, both the casting cavity 13 and the slot 121 will be filled with integral concrete, improving the stability of the connection.

[0026] In some possible implementations, the slot 121 includes a bottom wall 1211 and side walls 1212 located on both sides of the bottom wall 1211. Each mating plate of the beam end connector 21 includes a bottom plate 211 and side plates 212 located on both sides of the bottom plate 211. When the beam end connector 21 is inserted into the slot 121, the bottom plate 211 is attached to the bottom wall 1211, and the two side plates 212 are respectively attached to the corresponding side walls 1212. The fastener 3 includes a horizontal fastener 31 and a vertical fastener 32. The horizontal fastener 31 passes through the side plate 212 and is connected to the side wall 1212, and the vertical fastener 32 passes through the bottom plate 211 and is connected to the bottom wall 1211.

[0027] In some possible implementations, a reinforcing rib 214 connects the base plate 211 and the side plate 212. The reinforcing rib 214 can improve the connection stability between the base plate 211 and the side plate 212, has strong compressive strength, and ensures that the two remain perpendicular and not easily changed.

[0028] In some possible implementations, the dry connection structure between the precast double-sided composite shear wall and the precast beam includes a first embedded internally threaded cylinder 4 and a second embedded internally threaded cylinder 5. Both the first embedded internally threaded cylinder 4 and the second embedded internally threaded cylinder 5 are embedded in the double-sided composite shear wall 1, with the insertion port of the first embedded internally threaded cylinder 4 exposed on the side wall 1212, and the insertion port of the second embedded internally threaded cylinder 5 exposed on the bottom wall 1211. One end of the transverse fastener 31 passes through the side plate 212 and is threaded to the first embedded internally threaded cylinder 4, and one end of the vertical fastener 32 passes through the bottom plate 211 and is threaded to the second embedded internally threaded cylinder 5. The internally threaded cylinders are pre-embedded within the precast double-sided composite shear wall 1, resulting in high structural strength.

[0029] Among them, the horizontal fastener 31 and the vertical fastener 32 can both be studs, one end of which is connected to the first pre-embedded internal threaded cylinder 4 or the second pre-embedded internal threaded cylinder 5, and the other end is threadedly connected to the nut.

[0030] In some possible implementations, the base plate 211 has a bottom hole 2111 extending along the thickness direction of the double-sided composite shear wall 1, and the vertical fastener 32 passes through the bottom hole 2111. The side plate 212 has a side hole 2121 extending along the height direction of the double-sided composite shear wall 1, and the transverse fastener 31 passes through the side hole 2121. Both the bottom hole 2111 and the side hole 2121 are strip-shaped holes. Changing the position of the fastener 3 within the strip-shaped hole can fine-tune the position of the beam end connector 21 within the slot 121.

[0031] In some possible implementations, the dry connection structure between the precast double-sided composite shear wall 1 and the precast beam 2 includes an elastic pad 6, which is located between the inner wall of the slot 121 and each mating plate of the end beam connecting seat. The elastic pad 6 can serve as a buffer and shock absorber, absorbing vibration energy through its elastic properties. It also serves as an anti-loosening and fixing device, compensating for gaps caused by vibration through pre-tightening force and preventing nuts from loosening.

[0032] In some possible implementations, the dry connection structure between the precast double-sided composite shear wall and the precast beam includes an embedded seat 7, which has an embedded part 71 and an exposed part 72. The embedded part 71 is located inside the precast beam 2, and the exposed part 72 is exposed on the surface of the precast beam 2. The end beam connecting seat is connected to the exposed part 72. By setting the embedded seat 7 and then connecting the end beam connecting seat and the precast beam 2 through the embedded seat 7, the connection between the embedded seat 7 and the end beam connecting seat and the precast beam 2 is made more stable.

[0033] In some possible implementations, the exposed portion 72 includes a steel plate, and the embedded portion 71 includes a plurality of embedded ribs, each rib having one end vertically connected to the steel plate and the other end bent to form a bent section. The steel plate is exposed on the surface of the end beam, and the end beam connecting seat is fixed to the steel plate. The bent section embedded in the structure of the precast beam 2 can improve the gripping force with the beam body and ensure the stability of the embedded portion.

[0034] In some possible implementations, the beam end connector 21 is connected to the steel plate by fasteners 3. Alternatively, the beam end connector 21 is welded to the steel plate. Preferably, welding the beam end connector 21 to the steel plate provides good weld stability and allows for connection at the prefabrication site, eliminating the need for on-site construction.

[0035] The preferred embodiments disclosed above are merely illustrative of this application. These preferred embodiments do not exhaustively describe all details, nor do they limit the application to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this application, thereby enabling those skilled in the art to better understand and utilize this application. This application is limited only by the claims and their full scope and equivalents.

Claims

1. A dry connection structure between a precast double-sided composite shear wall and a precast beam, characterized in that, include: A double-sided composite shear wall, wherein the double-sided composite shear wall has a slot that extends along the thickness direction of the double-sided composite shear wall; A precast beam, wherein the end of the precast beam is provided with a beam end connector, the beam end connector is inserted into the slot, the beam end connector has multiple mating plates, each mating plate is located in a different plane, each mating plate is attached to the inner wall of the slot, and an operating cavity is formed between each mating plate; Multiple fasteners, each of which passes through a corresponding mating plate from one side of the operating cavity and is connected to the double-sided composite shear wall.

2. The dry connection structure between the precast double-sided composite shear wall and the precast beam according to claim 1, characterized in that, The double-sided composite shear wall includes an outer wall panel and an inner wall panel, with a casting cavity between the outer wall panel and the inner wall panel; The slot is provided on the inner wall panel, and the slot is connected to the casting cavity.

3. The dry connection structure between the precast double-sided composite shear wall and the precast beam according to claim 1, characterized in that, The slot includes a bottom wall and side walls located on both sides of the bottom wall; Each mating plate of the beam end connecting seat includes a base plate and side plates located on both sides of the base plate; With the beam end connector inserted into the slot, the base plate is attached to the bottom wall, and the two side plates are respectively attached to the corresponding side walls; The fasteners include horizontal fasteners and vertical fasteners; The horizontal fastener passes through the side plate and is connected to the side wall, and the vertical fastener passes through the bottom plate and is connected to the bottom wall.

4. The dry connection structure between the precast double-sided composite shear wall and the precast beam according to claim 3, characterized in that, The base plate and the side plates are connected by reinforcing ribs.

5. The dry connection structure between the precast double-sided composite shear wall and the precast beam according to claim 3, characterized in that, This includes a first pre-embedded internal threaded cylinder and a second pre-embedded internal threaded cylinder; The first and second pre-embedded internal threaded cylinders are both pre-embedded in the double-sided composite shear wall, and the insertion port of the first pre-embedded internal threaded cylinder is exposed on the side wall, while the insertion port of the second pre-embedded internal threaded cylinder is exposed on the bottom wall. One end of the transverse fastener passes through the side plate and is threaded to the first pre-embedded internal thread cylinder; One end of the vertical fastener passes through the base plate and is threadedly connected to the second pre-embedded internal thread cylinder.

6. The dry connection structure between the precast double-sided composite shear wall and the precast beam according to claim 3, characterized in that, A bottom hole is provided on the base plate, the bottom hole extends along the thickness direction of the double-sided composite shear wall, and the vertical fastener is provided through the bottom hole; The side plate is provided with a side hole, which extends along the height direction of the double-sided composite shear wall, and the transverse fastener is provided through the side hole.

7. The dry connection structure between the precast double-sided composite shear wall and the precast beam according to claim 1, characterized in that, Including elastic pads; The elastic pad is located between the inner wall of the slot and each mating plate of the end beam connector.

8. The dry connection structure between the precast double-sided composite shear wall and the precast beam according to claim 1, characterized in that, Includes a pre-embedded seat, which has a pre-embedded part and an exposed part; The embedded part is located inside the precast beam, and the exposed part is exposed on the surface of the precast beam; The end beam connector is connected to the exposed portion.

9. The dry connection structure between the precast double-sided composite shear wall and the precast beam according to claim 8, characterized in that, The exposed portion includes a steel plate; The embedded part includes multiple embedded ribs, one end of each embedded rib is vertically connected to the steel plate, and the other end is bent to form a bent section; The steel plate is exposed on the surface of the end beam; The end beam connector is fixed to the steel plate.

10. The dry connection structure between the precast double-sided composite shear wall and the precast beam according to claim 9, characterized in that, The beam end connector is connected to the steel plate by fasteners; Alternatively, the beam end connector is welded to the steel plate.

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