Cold-formed thin-wall section steel composite sheet steel shear wall

Abstract

The invention discloses a cold-formed thin-wall section steel composite sheet steel shear wall, which is applicable to multi-storey and small high-rise building systems in an area with high seismic intensity. The shear wall is formed by fixedly connecting double-layer double-side wall board units positioned at the outer layer and cold-formed thin-wall section steel framework units positioned at the inner layer through fixing screws (1), wherein a bottom layer formed in each side of each double-layer double-side wall board unit is sheet steel (2); the face layer is a paper surface fireproof gypsum plaster board (3); and each cold-formed thin-wall section steel framework unit consists of side steel upright posts (4), middle steel upright posts, an upper steel guide rail (6) and a lower steel guide rail (7). The cold-formed thin-wall section steel composite sheet steel shear wall has the advantages that the prefabrication, the standardization and the assemblage can be realized; all components can be prefabricated and processed in a factory according to the standard; then, the assembly is completed in a construction site; the structure self weight is light; the anti-seismic performance is greatly improved through being compared with that of a conventional cold-formed thin-wall section steel composite wall. The cold-formed thin-wall section steel composite sheet steel shear wall is applicable to the multi-storey and small high-rise building systems in the area with high seismic intensity, and has wide application prospects.

Description

technical field [0001] The invention belongs to the technical field of civil engineering, and relates to a cold-formed thin-walled steel composite steel-skinned shear wall suitable for multi-storey and small high-rise cold-formed thin-walled steel residential systems in high-intensity earthquake areas. Background technique [0002] The cold-formed thin-walled steel composite house structure includes a cold-formed thin-walled steel skeleton composed of cold-formed thin-walled steel columns and guide rails, and wall panels and roofs fixed to the cold-formed thin-walled steel skeleton by self-tapping screws. Due to the high degree of standardization of the cold-formed thin-walled steel structure system, good seismic performance, and environmental protection, building structures using cold-formed thin-walled steel structures as load-bearing systems have been widely used in North America, Australia, and Japan, but they are mainly used for below three floors residential houses. m...

AI Technical Summary

Problems solved by technology

[0003] The bearing capacity of the cold-formed thin-walled steel residential system in the prior art is smaller than that of ordinary reinforced concrete structures and ordinary steel structures, and the number of floors of the residence is greatly limited, and only low-rise buildings can be built.

Most areas in my country are located in areas with serious earthquake disasters. The cold-formed thin-walled steel residential system in the prior art still has the following problems in terms of earthquake resistance: (a) With the increase of the structure height, the P-Δ effect of the earthquake load will Intensified, the characteristics of the cold-formed thin-walled steel residential system in the prior art, such as the hinged column and the beam, and the disconnection of the column, will obviously reduce the lateral stiffness and bearing capacity of the structure; The energy dissipation capacity of the curved thin-walled steel residential system is lower than that of the frame structure and the shear wall structure; (c) from the perspective of multiple seismic fortifications, the cold-formed thin-walled steel residential system in the prior art has only one seismic fortification. Sustained earthquakes that follow will cause the building to collapse

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