Batten-plate-type cold-formed thin-walled trapezoidal section lattice steel column

Abstract

The invention discloses a batten-plate-type cold-formed thin-walled trapezoidal section lattice steel column, and mainly relates to structures such as low-rise steel structure residences, office and temporary structures, light steel plants and villas in civil engineering. Through a cold bending process, a steel plate is cold-bent into the trapezoidal section; roll rims are arranged on the inclinedsections of two cold-formed thin-walled trapezoidal section columns; according to the size of the steel column, batten plates are arranged every certain distance; the two cold-bent trapezoidal section columns are connected through the batten plates; and the batten plates and trapezoidal section steel are assembled in a connection mode to form the batten-plate-type cold-formed thin-walled trapezoidal section lattice steel column. Under the condition of the same consumables, compared with steel composite columns with other section forms, the steel composite column with the trapezoidal section has the main advantages that bending performance, earthquake resistance and stability are all improved; and when the steel composite column is used as a component to mainly bear pressure and bending moment, the very good economic effect can be achieved.

Description

technical field [0001] The invention relates to the field of civil engineering, in particular to a plate-decorated cold-formed thin-walled trapezoidal cross-section lattice steel column. Background technique [0002] With the development of my country's construction industry, the emergence of various new structural forms has driven the development of cold-formed thin-wall composite structures. Cold-formed thin-walled steel is formed by rolling, molding, cold-bending or cold-drawing of strip steel or steel plate, and the wall thickness of the load-bearing member is generally between 2 and 6mm. Compared with ordinary hot-rolled steel, due to the influence of cold hardening during the forming process, the yield point of cold-formed steel is significantly improved, that is, the so-called cold-bending effect, which improves the mechanical properties of components and saves steel. The cold-formed thin-walled steel structure is light in weight, multi-functional, and capable of ind...

AI Technical Summary

Problems solved by technology

[0003] At present, there is some research on cold-formed thin-walled steel special-shaped columns in our country, and there are also analyzes on specific projects, but the research is still in its infancy, and a complete theoretical framework has not been formed, and no systematic experimental research has been carried out; the finite element method adopted The research mainly focuses on the numerical simulation analysis of the components, and cannot simulate the boundary conditions, which makes the application of the conclusions in actual engineering have certain limitations.

Images