Cold-formed steel composite wall sandwiched with light-weight fabricated anti-buckling supports

Abstract

The invention belongs to the field of building engineering, and particularly relates to a cold-formed steel composite wall sandwiched with anti-buckling supports, and wall surface plate material layers and cold-formed steel are used as constraining parts for the anti-buckling supports. The cold-formed steel composite wall includes upper and lower guide rails transversely arranged and vertically-and-oppositely-arranged keel columns, and the anti-buckling supports and outer cover wall panels are sandwiched between the vertically-and-oppositely-arranged keel columns. Steel strips are used as corematerials in the sandwiched supports, a wrap-around cross-section body composed of wall surface plate materials such as OSB plates and the cold-formed steel is used as a constraining member, and thewrap-around cross-section body in the constraining member are connected with the outer cover wall panels correspondingly by self-tapping screws. According to the cold-formed steel composite wall sandwiched with the anti-buckling supports, the side resistant ability of the cold-formed steel composite wall can be improved, the steel strips can be brought into full play under compression and tension,and the seismic resistance of the wall can be improved. The cold-formed steel composite wall includes the anti-buckling supports, wherein the anti-buckling supports are fabricated, no wet work exists, construction is simple, less labor is applied, and the requirements of green buildings and fabricated buildings are met.

Description

technical field [0001] The invention belongs to the field of construction engineering, and in particular relates to a cold-formed steel composite wall with a buckling-proof support with a wall cladding material layer and cold-formed steel as constraining members. Background technique [0002] Cold-formed steel structures have replaced wooden structures due to their light weight, easy assembly, and good seismic performance. According to research, cold-formed steel structure houses occupy a considerable proportion in foreign countries. In recent years, my country has put forward the requirements of vigorously developing prefabricated buildings and developing green buildings. Because the steel structure itself can be recycled, there is no wet operation, no dust and pollution during the construction process. The characteristics of the cold-formed steel structure itself are easy to assemble, use less labor, and can even be designed, processed and constructed directly by computer. T...

AI Technical Summary

Problems solved by technology

[0003] The traditional cold-formed steel keel system is composed of wall panels, keel columns and guide rails connected by self-tapping screws. The bearing capacity is mainly determined by the strength of the screws connecting the panels and keels. The reliable connection between the panels and the screws is formed by the wall panels. Skin effect, mostly due to the failure of the screw connection, the wall system loses its function, and usually the keel column will also undergo buckling failure, resulting in a sharp decrease in the shear bearing capacity

[0004] In order to better improve the lateral resistance of the cold-formed steel keel wall, it is very necessary to strengthen the overall stiffness of the keel system. The keel system supported by steel belts is more obvious in improving the lateral resistance. However, due to the impact of steel structures, especially thin-walled steel structures Compressive buckling characteristics, the steel belt can only bear the tension, but not the pressure, so that its function cannot be fully exerted

In addition, adding steel strips to the keel system will also cause gaps between the outer cladding wallboard and the keel system, which will no longer be tightly connected, affecting the skin effect or even reducing its overall effect

In addition, the connection between the steel belt and the keel is also a weak part. If a small amount of screws are used for connection, the connection between the steel belt and the keel will often be damaged in the end. If a gusset plate is used, the wall panel will not be flat after installation, resulting in hollowing sense

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