Local buckling resistances of cold-formed high-strength steel SHS and RHS with varying corner radius

被引：27

作者：

Yang, Lu ^{[1
]}

Yin, Fei ^{[1
]}

Wang, Jie ^{[2
]}

Bilal, Azrat ^{[2
]}

Ahmed, Ari Habeeb ^{[2
]}

Lin, Manfang ^{[1
]}

机构：

[1] Beijing Univ Technol, Fac Architecture Civil & Transportat Engn, Beijing, Peoples R China

[2] Univ Bath, Dept Architecture & Civil Engn, Bath, Avon, England

来源：

THIN-WALLED STRUCTURES | 2022年 / 172卷

关键词：

Cold-formed steel structures; Effect of corner radius; High strength steels; Local buckling; Square and rectangular hollow sections (SHSand RHS); Stub column tests; 3-point bending tests; 4-point bending tests; DESIGN;

D O I：

10.1016/j.tws.2022.108909

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper reports an experimental and numerical study of the cross-sectional behaviour of cold-formed high strength steel (HSS) square and rectangular hollow section (SHS and RHS) members. Six stub column tests, six 3-point and three 4-point bending tests have been carried out, followed by the development of accurate finite element (FE) models and a parametric study. Based on the test and FE results, the design rules for slender cross-sections in European, American, Australian and Chinese standards and the GSRM method have been assessed via reliability analyses. A new equation for deriving the cross-sectional slenderness of SHS and RHS considering the influence of corner radius and new area reduction factors for designing slender cold-formed S900 (and above) SHS and RHS have also been proposed.

引用

页数：12

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