Double-layer steel plate composite shear wall with corrugated steel plates resisting side drawknot
Technical Field
The patent relates to a double-deck steel sheet compound shear wall of anti side drawknot of ripples folded steel board belongs to the structural engineering field.
Background
With the continuous progress of our society, the steel yield of our country is stable in the world first, and the steel for the construction industry is rapidly developed. The steel structure building becomes an important component of the building in China, becomes a steel frame-shear wall (core tube) structure system, is more and more used in high-rise buildings due to outstanding advantages, the shear wall is used as an important component of the system, a concrete shear wall, a steel plate shear wall and the like can be adopted, and great attention is paid to the exploration of the steel plate shear wall along with the development and scientific progress of times. The steel plate shear wall system is a structural form for researching hot door as a structural system with excellent wind resistance and earthquake resistance, and has good application in high-rise building structures. The method has the advantages of high initial lateral stiffness, high shear bearing capacity after buckling, high energy consumption capacity, high ductility and the like, and provides a good lateral force resistant structural system for a multi-story and high-rise steel structure. Many engineering applications show that the high-rise building adopting the steel frame-steel plate shear wall has the advantages of short construction period and good wind and earthquake resistance, is a high-rise building lateral force resistant structure system with good development prospect, is an ideal choice for earthquake resistance reinforcement of old buildings, particularly buildings in high-intensity earthquake areas, and can be increasingly applied to engineering structures.
The shear wall is mainly a single-layer steel plate shear wall or a combined shear wall formed by combining double-layer steel plates and concrete, the shear bearing capacity of the shear wall can meet the shear requirement of general building engineering, but for special buildings with great shear requirements, the existing various shear walls can not meet the shear requirement of the special buildings.
In order to overcome the problems, the patent provides the double-layer steel plate combined shear wall with the corrugated steel plate resisting side drawknot based on the idea of improving the elastic shear buckling load of the shear wall and the shear bearing capacity of the shear wall. By the ripples steel sheet with the outside steel sheet link together with bolt and welded mode, then concreting forms the combination shear wall, the ripples steel sheet passes through welded connection with the outside steel sheet, through the drawknot effect of ripples steel sheet, can restrict the buckling deformation of outside steel sheet to the outside, concreting in the cavity that ripples steel sheet and outside steel sheet formed, also can restrict the inside buckling deformation of steel sheet through the concrete, wholly through the combined action of two kinds of steel sheets and concrete, the effectual whole bearing capacity that has improved.
Disclosure of Invention
The invention provides a double-layer steel plate composite shear wall with corrugated steel plates resisting side pulling, and belongs to the field of structural engineering. The corrugated steel plate and the outer steel plate are connected together in a bolt and welding mode, then concrete is poured to form a combined shear wall, and the overall bearing capacity is effectively improved through the combined action of the two steel plates and the concrete.
In order to achieve the purpose, the invention adopts the following technical means:
the combined shear wall comprises two corrugated steel plates, a plurality of outer steel plates, bolts and filled concrete; the first corrugated steel plate and the second corrugated steel plate are two steel plates with the same shape, the two steel plates are buckled with each other, the two corrugated steel plates are placed in an axisymmetric mode, and then the two corrugated steel plates are connected through bolts; the outer steel plate is respectively connected with the first corrugated steel plate and the second corrugated steel plate in a welding mode, and concrete is poured in a cavity formed by the first corrugated steel plate and the outer steel plate to form the double-layer steel plate combined shear wall resisting side pulling of the corrugated steel plate.
The advantages of the patent are mainly shown in the following aspects:
1. by adopting the combination of the corrugated steel plate and the welded and attached outer steel plate, the lateral stiffness can be effectively provided for the steel plate shear wall, the force flow transmission of the shear wall is more definite, and the problem of insufficient lateral resistance of the giant steel plate shear wall is effectively solved; meanwhile, the flat straight section and the outer steel plate of the corrugated steel plate directly participate in the tensile action of the anti-side and corrugated sections of the corrugated steel plate on the outer steel plate of the shear wall, so that the elastic shear buckling load of the outer steel plate and the shear resisting bearing capacity of the outer steel plate can be effectively improved, and the economy of the steel plate shear wall is improved; in addition, the contact surface of the corrugated steel plate and the concrete is larger, and the bonding effect between the steel plate and the concrete can be enhanced.
2. The corrugated steel plate, the welded and attached outer steel plate and the filled concrete interact with each other, so that the overall bearing capacity of the wall body is improved. On one hand, in the process of bearing pressure or shearing force, the two outer steel plates are easy to generate single-wave buckling instability, the outer steel plates are pulled and connected through the two corrugated steel plates, the outward bulging deformation or the inward buckling deformation of the steel plates can be limited, and in addition, the buckling deformation of the corrugated steel plates and the buckling deformation of the outer steel plates can be simultaneously inhibited through the action of concrete; on the other hand, the corrugated steel plate and the outer steel plate can inhibit the development of concrete cracks, and further improve the bearing capacity of the wall body.
3. The integrally poured concrete can improve the compression and shear bearing capacity of the steel plate composite shear wall and can restrain the buckling deformation of the outer steel plate; meanwhile, the outer steel plate provides lateral restraint for the filled concrete, so that the filled concrete is in a bidirectional compression state, the compression resistance of the concrete is improved, and the development of concrete cracks is slowed down. The bilateral steel plates can be used as concrete templates, so that a formwork supporting procedure is omitted, the construction period is shortened, and the concrete is restrained by the steel plates and does not have the risk of falling even if being crushed.
4. This patent has very big partly work to accomplish in the factory in the work progress, very big shortening construction period, the error that probably appears in the effectual field construction of having avoided has still alleviateed the environmental pollution of job site simultaneously.
Drawings
FIG. 1 is a top view of a corrugated steel plate anti-lateral-pulling double-layer steel plate composite shear wall;
FIG. 2 is a three-dimensional view of a corrugated steel plate anti-lateral-pulling-bonded double-layer steel plate composite shear wall;
FIG. 3 is a schematic view of a pure steel plate of a corrugated steel plate lateral tension resistant composite shear wall with partially disassembled double-layer steel plates;
fig. 4 is a schematic view of the wall shape of a corrugated steel plate lateral tension resistant double-layer steel plate composite shear wall.
Detailed Description
Embodiments of the present patent are described in detail below with reference to the accompanying drawings.
As shown in figures 1-3, a double-layer steel plate composite shear wall with corrugated steel plates resisting side pulling
Comprises the following components.
1-corrugated steel plate I;
2-corrugated steel plate II;
3-outer steel plate;
4-bolt;
5-concrete.
As shown in fig. 1 to 3, a double-layer steel plate composite shear wall with corrugated steel plates resisting side drawknot is characterized in that:
the combined shear wall comprises a corrugated steel plate I (1), a corrugated steel plate II (2), a plurality of outer steel plates (3), bolts (4) and inner filling concrete (5); the first corrugated steel plate (1) and the second corrugated steel plate (2) are two steel plates with the same shape, are buckled with each other, are placed in an axisymmetric mode, and are connected by a plurality of bolts (4) at the position of a web plate jointed by the two corrugated steel plates; the width of outside steel sheet (3) is the same with the width of ripples steel sheet, but highly less, and a plurality of outside steel sheet (3) stack can reach the height of ripples steel sheet, along the consecutive welding of ripples steel sheet direction of height a plurality of outside steel sheet (3), pours concrete (5) in the cavity that ripples web and outside steel sheet (3) formed and forms this ripples steel sheet anti side pull combined shear wall.
As shown in fig. 4, the shape of the wall body is specifically a linear combined shear wall, an L-shaped combined shear wall, a T-shaped combined shear wall, a Z-shaped combined shear wall, or a cross-shaped combined shear wall.