CN108086535A - A kind of assembled square steel tube steel plate concrete combined shear wall - Google Patents

Abstract

The invention discloses an assembled square steel pipe and steel plate concrete combined shear wall, which comprises a vertical beam and a cross beam to form a frame structure; the vertical beam includes a special-shaped square steel pipe group (1) and a single square steel pipe (2); the cross beam Including H-shaped steel beams (3); said H-shaped steel beams (3) are respectively welded with special-shaped square steel pipe groups (1) or single square steel pipes (2) as interlayer beams; above the H-shaped steel beams (3) The two-way connecting piece (4) connects the upper and lower floors; the H-shaped steel beam (3) on the upper floor, the two-way connecting piece (4) on the lower floor and the special-shaped square steel pipe group (1) or single square steel pipe (2) on both sides ) welded steel plates (5) on both sides of the square space formed by two steel plates (5); filling concrete (8) is poured between the two steel plates (5); the layout is flexible and the stress is clear, which significantly improves the lateral resistance of the structural system. The steel plate concrete composite structure and frame The structures work together and coordinate deformation, forming two anti-seismic defense lines, and the anti-seismic performance is reliably guaranteed.

Description

An Assembled Square Steel Tube Steel Plate Concrete Composite Shear Wall

technical field

The invention relates to the technical field of building structures, in particular to an assembled square steel tube steel plate concrete composite shear wall.

Background technique

At present, the structural systems often used in high-rise residential buildings include shear wall structure, frame-shear wall structure, frame support-shear wall structure, etc. Or introduce a shear wall system with stronger lateral stiffness into the super high-rise structure. Reinforced concrete shear wall is one of the most commonly used shear wall forms in structures at present. It is favored by the majority of designers for its advantages of good integrity, high rigidity, small lateral deformation, and good resistance to wind load and small and medium-level earthquakes. , but its own shortcomings are also prominent, such as excessive stiffness, low ductility, early cracks, shear damage in the later stage of stress, and difficult repair after earthquakes. In addition, the size of reinforced concrete shear walls The weight and self-weight are relatively large, which not only increases the burden of the structural foundation but also wastes the indoor area. The on-site construction process needs to support formwork, tie steel bars and other processes, and the efficiency is relatively low.

The other type of double-steel plate concrete composite shear wall is mostly a vertical through-hole structure, and is connected to the floor through reinforcement holes at the floor position. The joint strength between the wall and the floor is weak, and the seismic performance is poor.

Contents of the invention

The purpose of the present invention is to provide an assembled square steel-steel-concrete-concrete composite shear wall, which has flexible layout and clear stress, and significantly improves the lateral resistance of the structural system. The two lines of defense for earthquake resistance are established, and the earthquake resistance performance is reliably guaranteed.

The purpose of the present invention is achieved through the following technical solutions:

An assembled square steel pipe and steel plate concrete composite shear wall, comprising a vertical beam and a cross beam to form a frame structure; the vertical beam includes a special-shaped square steel pipe group 1 and a single square steel pipe 2; the cross beam includes an H-shaped steel beam 3;

The H-shaped steel beam 3 is respectively welded with the special-shaped square steel pipe group 1 or the single square steel pipe 2 as an interlayer beam; the two-way connecting piece 4 above the H-shaped steel beam 3 connects the upper and lower floors;

The H-shaped steel beam 3 on the upper floor, the two-way connecting piece 4 on the lower floor and the special-shaped square steel pipe group 1 or the single square steel pipe 2 on both sides form a square space with welded steel plates 5 on both sides; the two steel plates 5 are filled with concrete 8;

The steel plate 5 on both sides is welded to the H-shaped steel beam 3 on the upper layer, the two-way connecting piece 4 on the lower layer, and the fishplate 6 on the special-shaped square steel pipe group 1 or the single square steel pipe 2 on both sides.

A plurality of evenly distributed support nails 7 are arranged between the steel plates 5 on both sides.

The special-shaped square steel pipe group 1 includes straight, L-shaped, T-shaped and cross-shaped.

The two-way connecting member 4 includes a cross-pass plate 41, and a plurality of evenly distributed and intermittently arranged vertical studs 42 are welded above the cross-pass plate 41, and are poured and connected with the concrete 8;

A plurality of evenly distributed and discontinuously arranged vertical steel plates 43 are welded below the horizontal plate 41, and the steel bars and concrete of the floor 9 are connected with the steel bars and concrete of the floor 9 in the adjacent space through the gaps of the vertical steel plates 43.

The floor slab 9 includes a laminated floor slab, a reinforced truss slab and a profiled steel plate.

It can be seen from the above-mentioned technical solution provided by the present invention that the assembled square steel pipe and steel plate concrete composite shear wall provided by the embodiment of the present invention has flexible layout and clear force, and significantly improves the lateral resistance of the structural system. The concrete composite structure and the frame structure work together and coordinate deformation, forming two lines of defense against earthquakes, and the seismic performance is reliably guaranteed.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings on the premise of not paying creative work.

Fig. 1 is the first schematic diagram of the assembled square steel pipe and steel plate concrete composite shear wall provided by the embodiment of the present invention;

Fig. 2 is the second schematic diagram of the assembled square steel pipe and steel plate concrete composite shear wall provided by the embodiment of the present invention;

Figure 3 is a schematic diagram of four structures of the assembled square steel pipe and steel plate concrete composite shear wall special-shaped square steel pipe group provided by the embodiment of the present invention;

Fig. 4 is a structural schematic diagram 1 of the two-way connecting member of the assembled square steel pipe and steel plate concrete composite shear wall provided by the embodiment of the present invention;

Fig. 5 is a structural schematic diagram II of the two-way connecting member of the assembled square steel pipe and steel plate concrete composite shear wall provided by the embodiment of the present invention;

Fig. 6 is a schematic diagram of the connection structure of the assembled square steel pipe and steel plate concrete combined shear wall floor provided by the embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

As shown in Figures 1 to 2, an assembled square steel pipe and steel plate concrete composite shear wall includes a vertical beam and a beam to form a frame structure; the vertical beam includes a special-shaped square steel pipe group 1 and a single square steel pipe 2; The beams include H-shaped steel beams 3; as shown in Figure 3, the special-shaped square steel pipe group 1 includes straight, L-shaped, T-shaped and cross-shaped. One type is used for vertical beams between walls, L type is used for corner vertical beams, T type is used for corner vertical beams of two adjacent rooms, and cross type is used for corner vertical beams of four adjacent rooms.

The H-shaped steel beam 3 is welded with the special-shaped square steel pipe group 1 or the single square steel pipe 2 respectively as an interlayer beam; the two-way connecting piece 4 above the H-shaped steel beam 3 connects the upper and lower floors; 3. The two-way connecting piece 4 of the lower layer and the special-shaped square steel pipe group 1 or the single square steel pipe 2 on both sides are welded with steel plates 5 on both sides of the square space; specifically, two of the inner sides of the H-shaped steel beam 3 of the upper layer are welded Two fishplates 6 are welded above the fishplate 6 and the two-way connecting piece 4 of the lower layer, and two fishplates 6 are respectively welded on the inner sides of the special-shaped square steel pipe group 1 or the single square steel pipe 2 on both sides. The steel plate 5 is welded to the profiled steel beam 3 on the upper layer, the two-way connecting piece 4 on the lower layer, and the fishplate 6 on the special-shaped square steel pipe group 1 or the single square steel pipe 2 on both sides. In this way, the two steel plates 5 form a cavity, and concrete 8 is poured between the two steel plates 5; at the same time, a plurality of evenly distributed supporting nails 7 are arranged between the two steel plates 5. The support nail 7 adopts a horizontal bolt and a pull screw to connect the steel plates 5 on both sides. The interaction between the steel plate 5 and concrete can be enhanced.

As shown in Figures 4 and 5, the two-way connecting member 4 includes a horizontal plate 41, and a plurality of evenly distributed and intermittently arranged vertical studs 42 are welded above the horizontal plate 41 to be connected with the concrete 8 by pouring; The pegs 42 can be in double rows, or in a single row as shown in Fig. 5 . A plurality of evenly distributed vertical steel plates 43 arranged discontinuously are welded below the cross-through plate 41, as shown in Figure 4, the vertical steel plates 43 can be arranged horizontally, or as shown in Figure 54, the vertical steel plates 43 are arranged vertically. As shown in FIG. 6 , the steel bars and concrete of the floor 9 are connected with the steel bars and concrete of the floor 9 in the adjacent space through the gaps of the vertical steel plates 43 . The floor slab 9 includes a laminated floor slab, a reinforced truss slab and a profiled steel plate.

Advantages of the present invention:

1. Between the upper and lower floors of the shear wall, two-way connecting parts 4 of the wall panel are used, which can realize the continuity of the vertical direction of the wall and the continuity of the horizontal direction of the floor, and the structure is safer;

2. The vertical beams of special-shaped square steel pipe group 1 or single square steel pipe 2 are used at the edge of the shear wall, which has a relatively strong adaptability to the building type and can make indoors without convex corners;

3. The H-shaped steel beam 3 is embedded in the shear wall, which can separate the construction of the shear wall and the construction of the frame structure, and the construction efficiency is higher;

4. Concrete is poured between the frame of the square pipe column and the steel beam and the double steel plate 5. During the construction process, the square steel pipe and the double steel plate are used as a formwork, and formwork is not required. After the structure construction is completed, the steel plate 5 and the concrete cooperate to form a combined structure, Force;

5. The fishplate 6 is welded on the inner side of the frame of the square pipe column and the steel beam, and the double-sided steel plate 5 is directly welded on the fishplate 6, which is convenient and quick to construct, and can effectively reduce the residual stress caused by the thin plate welding;

6. The double steel plates 5 are arranged at intervals by tension bolts and studs, which not only prevents the out-of-plane deformation of the steel 5 plates during the concrete pouring process, but also reduces the number of holes on the steel plates, which is more economical and practical.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person familiar with the technical field can easily conceive of changes or changes within the technical scope disclosed in the present invention. Replacement should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (5)

1. an assembled square steel pipe and steel plate concrete combined shear wall is characterized in that, comprises vertical beam and beam and forms frame structure; Described vertical beam comprises special-shaped square steel pipe group (1) and single square steel pipe (2) ; The beam comprises an H-shaped steel beam (3); The H-shaped steel beam (3) is welded with the special-shaped square steel pipe group (1) or the single square steel pipe (2) respectively as an interlayer beam; the two-way connecting piece (4) above the H-shaped steel beam (3) is connected Floor; The H-shaped steel beam (3) on the upper floor, the two-way connecting piece (4) on the lower floor and the special-shaped square steel pipe group (1) or single square steel pipe (2) on both sides constitute a square space with welded steel plates on both sides (5 ); Pouring filled concrete (8) between two steel plates (5); The steel plates (5) on both sides are welded to the H-shaped steel beam (3) on the upper layer, the two-way connecting piece (4) on the lower layer and the special-shaped square steel pipe group (1) or single square steel pipe (2) on both sides. The upper fishplate (6) is welded. 2. The assembled square steel pipe and steel plate concrete composite shear wall according to claim 1, characterized in that a plurality of evenly distributed support nails (7) are arranged between the steel plates (5) on both sides. 3. The assembled square steel pipe and steel plate concrete composite shear wall according to claim 1 or 2, characterized in that, the special-shaped square steel pipe group (1) includes a straight, L-shaped, T-shaped and cross-shaped . 4. The assembled square steel pipe and steel plate concrete composite shear wall according to claim 1 or 2, characterized in that, the two-way connecting member (4) comprises a transverse plate (41), a transverse plate (41) A plurality of vertical studs (42) evenly distributed and arranged intermittently are welded on the top, and are poured and connected with the concrete (8); A plurality of evenly distributed and discontinuously arranged vertical steel plates (43) are welded under the horizontal plate (41), and the reinforcement and concrete of the floor plate (9) pass through the gap between the vertical steel plate (43) and the floor plate (9) of the adjacent space. Rebar and concrete connections. 5. The assembled square steel pipe and steel plate concrete composite shear wall according to claim 4, characterized in that, the floor (9) includes a laminated floor, a reinforced truss plate and a profiled steel plate.