Experimental investigation on the cold-forming effect of high strength cold-formed steel sections

被引：2

作者：

Li, Gong -Wen ^{[1
,2
]}

Wu, Zhi-Xiao ^{[1
]}

Wen, Dong-Hui ^{[3
]}

Shao, Jian-Feng ^{[2
]}

Hu, Chuan-Xin ^{[2
]}

机构：

[1] Cent South Architectural Design Inst Co Ltd, Wuhan, Peoples R China

[2] Wuhan Univ Sci & Technol, Sch Urban Construct, Wuhan, Peoples R China

[3] Taiyuan Univ, Dept Architecture & Environm Engn, Taiyuan, Peoples R China

来源：

STRUCTURES | 2023年 / 58卷

基金：

湖北省教育厅重点项目;

关键词：

High strength; Cold-formed steel; Cold-forming effect; Residual stress; Column curve; RESIDUAL-STRESSES; BEHAVIOR;

D O I：

10.1016/j.istruc.2023.105615

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Many researches were carried out on the cold-forming effect of cold-formed steel sections while research on that of high strength cold-formed steel sections was quite few. Thus, an experimental investigation on the material property and residual stress of high strength cold-formed steel sections was carried out and the effect of residual stress on the overall stability bearing capacity was studied. It was found that: (1) the increase of yield strength of high strength cold-formed steel was similar to that of Q235 and Q345 cold-formed steel; (2) the residual stress at corner parts was much higher than that at flat parts and the bending residual stress of high strength cold-formed steel was much lower than that of Q235 and Q345 cold-formed steel; (3) residual stress would lead to a decline of the overall stability bearing capacity of axially loaded high strength cold-formed C-shaped steel sections and the effect became lower with the increase of strength grade.

引用

页数：16

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