Vertical connecting structure of shear wall

Abstract

The utility model discloses a shear wall vertical connecting structure which comprises an upper shear wall and a lower shear wall which are oppositely arranged, and a plurality of vertical connecting holes extending in the height direction of the shear walls are distributed in the upper ends and the lower ends of the shear walls in the width direction of the shear walls respectively. The connecting structure further comprises a connecting truss, the two ends of the connecting truss are inserted into the vertical connecting holes of the upper shear wall and the lower shear wall respectively, and the vertical connecting holes are filled with concrete. The connecting trusses are adopted as the connecting bars of the shear wall, the integrity of the vertical steel bars and the web bars of the connecting trusses is good, the web bars serve as the transverse steel bars, the anchoring strength of the connecting trusses can be further improved, and therefore the connecting strength of vertical connection of the shear wall is improved; the technology is mature, production is convenient, self-rigidity is large, penetrating installation and fixing are convenient, and construction efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of building structures, in particular to a shear wall vertical connection structure. Background Art

[0002] In order to achieve vertical connection, most of the current prefabricated reinforced concrete shear walls are equipped with rebars, which are connected to the upper or lower building structure through the rebars. When the shear wall is produced, the mold of such a rebar structure is complex and difficult to standardize, which brings inconvenience to production. Therefore, some shear walls are vertically connected by opening vertical through holes and inserting vertical connecting steel bars therein. However, the current connecting steel bars generally use U-shaped steel bars or ring steel bars, and the structural form is relatively simple. The connecting steel bars mainly rely on the anchoring effect of the vertical section to achieve the connection between the structures, and their connection strength is relatively poor. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a shear wall vertical connection structure to solve the problem of poor connection strength of the existing prefabricated shear wall vertical connection structure.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A shear wall vertical connection structure comprises two upper and lower shear walls arranged opposite to each other, wherein a plurality of vertical connection holes extending along the height direction of the shear walls are distributed along the width direction at the upper and lower ends of the shear walls respectively; and a connecting truss is further comprised, wherein the two ends of the connecting truss are respectively inserted into the vertical connection holes of the upper and lower shear walls, and the vertical connection holes are filled with concrete.

[0006] As an optimization, there is a spacing between the two shear walls; and there are also two floor slabs arranged opposite to each other on the left and right, the ends of the two floor slabs extend into the spacing between the two shear walls, and there is also a spacing between the ends of the two floor slabs, so that the spacing between the shear walls and the spacing between the floor slabs together enclose a post-cast strip, the connecting truss passes through the post-cast strip, and its two ends are respectively inserted into the vertical connecting holes of the two shear walls, and the post-cast strip and the vertical connecting holes are filled with concrete.

[0007] As an optimization, the shear wall includes a concrete wall panel and a steel frame wrapped in the wall panel, the steel frame includes a first steel mesh and a second steel mesh respectively provided on opposite sides of the wall panel along the thickness direction, a plurality of trusses extending along the height direction of the wall panel are provided between the first steel mesh and the second steel mesh, the plurality of trusses are distributed along the width direction of the wall panel and are respectively connected to the first steel mesh and the second steel mesh; a horizontal connecting structure is provided on at least one side facade of the wall panel for horizontal connection with the building structure.

[0008] As an optimization, the first steel mesh and the second steel mesh both include cross-arranged horizontal steel bars and vertical steel bars, and the corresponding parts of the vertical steel bars of the first steel mesh and the second steel mesh are connected by stirrups to form a plurality of columnar steel skeletons.

[0009] As an optimization, there are two columnar steel bar skeletons, which are close to both ends of the wall panel along the width direction.

[0010] As an optimization, a plurality of the trusses are distributed at intervals between adjacent columnar steel reinforcement skeletons.

[0011] As an optimization, the vertical connection holes are distributed between adjacent trusses and in the columnar steel reinforcement skeleton.

[0012] As an optimization, the truss is a plane truss or a triangular truss.

[0013] As an optimization, the horizontal connection structure includes a connection groove opened on at least one side of the vertical surface of the wall panel, and the connection groove is arranged along the height direction of the wall panel or at intervals, and multiple anchor rings or threaded sleeves or flexible lassos for installing anchor rings are pre-embedded in the connection groove.

[0014] As an optimization, a plurality of operating grooves are arranged at intervals on the side facades adjacent to the side facades with the connecting grooves, the operating grooves penetrate the two adjacent side facades and communicate with the connecting grooves, and correspond to the positions of the threaded sleeves or lassos.

[0015] Compared with the prior art, this application has the following beneficial effects:

[0016] The utility model,

[0017] By using connecting trusses as connecting bars of shear walls, the vertical reinforcement and web reinforcement of the connecting trusses have better integrity, and the web reinforcement as transverse reinforcement can further improve the anchoring strength of the connecting trusses, thereby improving the connection strength of the vertical connection of the shear wall. At the same time, the truss structure is a mature prefabricated component with mature technology, easy to produce, large rigidity, easy to install and fix, and high construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the vertical connection structure in the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the shear wall in the utility model after the connecting truss is inserted;

[0020] In the figure, 1 is shear wall, 2 is first steel mesh, 3 is second steel mesh, 4 is truss, 5 is vertical connection hole, 6 is stirrup, 7 is columnar steel skeleton, 8 is connection groove, 9 is anchor ring, 10 is flexible lasso, 11 is connection truss, and 12 is floor slab. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0022] For specific implementation: see Figure 1-2 ,

[0023] A shear wall vertical connection structure includes two upper and lower shear walls 1 arranged opposite to each other, wherein a plurality of vertical connection holes 5 extending along the height direction of the shear wall are distributed along the width direction at the upper and lower ends of the shear wall 1; and a connecting truss 11 is further included, wherein the two ends of the connecting truss 11 are respectively inserted into the vertical connection holes 5 of the upper and lower shear walls, and the vertical connection holes 5 are filled with concrete.

[0024] Specifically, under normal circumstances, there is a spacing between the two shear walls 1; and there are also two floor slabs 12 arranged opposite to each other on the left and right, the ends of the two floor slabs 12 extend into the spacing between the two shear walls, and there is also a spacing between the ends of the two floor slabs 12, so that the spacing between the shear walls 1 and the spacing between the floor slabs 12 together enclose a post-cast strip, the connecting truss 11 passes through the post-cast strip, and its two ends are respectively inserted into the vertical connection holes 5 of the two shear walls 1, and the post-cast strip and the vertical connection holes 5 are filled with concrete. In this embodiment, the floor slab 12 generally adopts a composite slab, and the post-cast strip and the composite layer on the upper side of the floor slab form an integral cast-in-place structure, which has better integrity and is easy to ensure connection strength.

[0025] By using the connecting truss as the connecting reinforcement of the shear wall, the vertical reinforcement and web reinforcement of the connecting truss have good integrity, and the web reinforcement can strengthen the vertical connection of the shear wall and play a good pinning role. At the same time, compared with the use of a single large-diameter steel bar connection, the anchorage length of the small-diameter steel bar is shorter and more economical. At the same time, as a mature prefabricated component, the truss structure has mature technology, is easy to produce, has a large rigidity, is easy to insert, install and fix, and has high construction efficiency.

[0026] In this embodiment, the shear wall 1 includes a concrete wall panel and a steel frame wrapped in the wall panel, and the steel frame includes a first steel mesh 2 and a second steel mesh 3 respectively arranged on opposite sides of the wall panel along the thickness direction. Specifically, the first steel mesh 2 and the second steel mesh 3 both include horizontal steel bars and vertical steel bars arranged crosswise, and the corresponding parts of the vertical steel bars of the first steel mesh and the second steel mesh are connected by stirrups 6 to form a plurality of columnar steel frame 7, and the stirrups 6 are spiral stirrups. In this embodiment, there are two columnar steel frame 7, which are close to the two ends of the wall panel along the width direction to form a square column structure, thereby improving the overall strength and stability of the shear wall 1. A plurality of trusses 4 extending along the height direction of the wall panel are arranged between the first steel mesh 2 and the second steel mesh 3, and the plurality of trusses 4 are distributed along the width direction of the wall panel and are respectively connected to the first steel mesh 2 and the second steel mesh 3. Specifically, the truss 4 can be a plane truss or a triangular truss, or other forms of truss structures. A plurality of the trusses 4 are spaced and distributed between adjacent columnar steel skeletons 7. The truss 4 can play the role of tying the steel mesh, and at the same time has a certain restraining ability on the concrete, which can appropriately improve the ductility of the wall, and the truss and the steel mesh can be standardized and automatically processed and formed. The truss 4 is convenient for pre-embedding and pre-reservation as a skeleton, and can realize the vertical forming process of the wall panel (the traditional steel skeleton is relatively soft, and the pre-embedding and pre-reservation cannot be positioned, so it cannot be produced vertically), reducing production costs, improving the degree of automation, and realizing smart construction.

[0027] A horizontal connection structure is provided on at least one side of the vertical surface of the wall panel, which is used for horizontal connection with the building structure. Specifically, the horizontal connection structure includes a connection groove 8 opened on at least one side of the vertical surface of the wall panel, and the connection groove 8 is arranged along the height direction of the wall panel or arranged at intervals, and a plurality of anchor rings 9 or threaded sleeves or flexible lassos 10 for installing the anchor rings 9 are pre-embedded in the connection groove. Correspondingly, the same connection groove is provided at the adjacent building structure where the shear wall is pre-installed, and a flexible lasso 10 or anchor ring 9 matching with the anchor ring 9 or the flexible lasso 10 is pre-embedded in the connection groove, so that the anchor ring 9 matches with the flexible lasso 10. In this way, during installation, since the flexible lasso 10 itself can be deformed, when the shear wall 1 is placed, the flexible lasso 10 can well pass over the rigid anchor ring 9. Finally, the anchor ring 9 and the flexible lasso 10 are staggered and the center holes are opposite, which is convenient for inserting the dowel and pouring concrete in the center hole to achieve horizontal connection, avoiding the problem that the anchor rings interfere with each other and are inconvenient to install in the traditional connection method of all using anchor rings and dowels. In addition, in order to further improve the convenience of installation, a plurality of operation grooves are arranged at intervals on the side facades adjacent to the side facades with the connection grooves, and the operation grooves penetrate the two adjacent side facades and communicate with the connection grooves, and correspond to the positions of the threaded sleeves or lassoes. In this way, it is convenient to operate the anchor ring and the flexible lasso as a hand hole when encountering special circumstances, and it is also convenient to observe the matching of the anchor ring and the flexible lasso. At the same time, after pouring concrete, the post-cast part forms a complex mosaic structure to improve the overall strength of the horizontal connection. In addition, the truss 4 can also be replaced by a corrugated steel plate, the crests and troughs of the corrugated steel plate are respectively connected to the first steel mesh 2 and the second steel mesh 3. Specifically, the corrugated steel plate is arranged between adjacent columnar steel skeletons 7, and its two ends are respectively welded to the stirrups 6 of the columnar steel skeleton 7. Its crests and troughs extend along the height direction of the wall panel, and the two ends of the corrugated steel plate are connected to the columnar steel skeleton 7. The corrugated steel plate includes crest plates and trough plates that are alternately and staggeredly arranged. The crest plates and trough plates are connected by inclined web plates, and a plurality of through holes spaced apart along the height direction of the wall panels are opened on the inclined web plates to facilitate the flow of concrete during pouring, improve the uniformity of pouring, and improve the integrity of the wall panels.

[0028] This application adopts a non-reinforced structure and retains the starting point that the steel skeleton is assembled from standardized products, laying the foundation for automated assembly. The production mold is easy to standardize and simplify. The truss forms longitudinal ribs inside the wall panel, which will hinder the development of through cracks, thereby improving the hysteresis performance and energy consumption capacity of the wall panel. The truss, as a vertical stability component, is convenient for vertical molding production, reduces floor space, improves plant utilization efficiency, and reduces fixed costs. At the same time, independent vertical connection holes and horizontal connection structures are set on the shear wall to achieve vertical and horizontal connections, which is convenient for installation and improves construction efficiency.

[0029] Although the embodiments of the present invention have been shown and described, it is apparent to those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and foundations of the present invention. The scope of the present invention is defined by the appended claims and their equivalents. Therefore, the embodiments of the present invention are merely illustrative examples of the present invention. The embodiments of the present invention do not constitute limitations on the present invention from any point of view.

Claims

1. A shear wall vertical connection structure, characterized in that: It includes two upper and lower shear walls arranged in parallel, and a plurality of vertical connection holes extending along the height direction of the shear walls are distributed along the width direction at the upper and lower ends of the shear walls; it also includes a connecting truss, the two ends of the connecting truss are respectively inserted into the vertical connection holes of the upper and lower shear walls, and the vertical connection holes are filled with concrete.

2. A shear wall vertical connection structure according to claim 1, characterized in that: There is a spacing between the two shear walls; it also includes two floor slabs arranged opposite to each other on the left and right, the ends of the two floor slabs extend into the spacing between the two shear walls, and there is also a spacing between the ends of the two floor slabs, so that the spacing between the shear walls and the spacing between the floor slabs together enclose a post-cast strip, the connecting truss passes through the post-cast strip, and its two ends are respectively inserted into the vertical connecting holes of the two shear walls, and the post-cast strip and the vertical connecting holes are filled with concrete.

3. A shear wall vertical connection structure according to claim 1 or 2, characterized in that: The shear wall includes a concrete wall panel and a steel frame wrapped in the wall panel, wherein the steel frame includes a first steel mesh and a second steel mesh respectively arranged on opposite sides of the wall panel along the thickness direction, and a plurality of trusses extending along the height direction of the wall panel are arranged between the first steel mesh and the second steel mesh, and the plurality of trusses are distributed along the width direction of the wall panel and are respectively connected to the first steel mesh and the second steel mesh; a horizontal connection structure is arranged on at least one side elevation of the wall panel for horizontal connection with the building structure.

4. A shear wall vertical connection structure according to claim 3, characterized in that: The first steel mesh and the second steel mesh both include cross-arranged horizontal steel bars and vertical steel bars, and the corresponding parts of the vertical steel bars of the first steel mesh and the second steel mesh are connected by stirrups to form a plurality of columnar steel skeletons.

5. A shear wall vertical connection structure according to claim 4, characterized in that: There are two columnar steel bar skeletons, which are close to both ends of the wall panel along the width direction.

6. A shear wall vertical connection structure according to claim 4, characterized in that: A plurality of trusses are distributed at intervals between adjacent columnar steel bar skeletons.

7. A shear wall vertical connection structure according to claim 4, characterized in that: The vertical connection holes are distributed between adjacent trusses and in the columnar steel reinforcement skeleton.

8. A shear wall vertical connection structure according to claim 4, characterized in that: The truss is a plane truss or a triangular truss.

9. A shear wall vertical connection structure according to claim 8, characterized in that: The horizontal connection structure includes a connection groove opened on at least one side of the wall panel, the connection groove is arranged along the height direction of the wall panel or at intervals, and a plurality of anchor rings or threaded sleeves or flexible lassoes for installing anchor rings are pre-buried in the connection groove.

10. A shear wall vertical connection structure according to claim 9, characterized in that: A plurality of operating grooves are arranged at intervals on the side facades of the wall panel adjacent to the side facades with the connecting grooves, the operating grooves penetrate the two adjacent side facades and communicate with the connecting grooves, and correspond to the positions of the threaded sleeves or lassos.

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