Experimental study on distortional buckling of 550MPa high strength cold-formed thin-walled channel flexural members

被引：0

作者：

Zhao, Jinyou ^{[1
]}

Wang, Jun ^{[1
]}

Feng, Wei ^{[1
]}

机构：

[1] Northeast Forestry University, Harbin,150040, China

来源：

Tumu Gongcheng Xuebao/China Civil Engineering Journal | 2016年 / 49卷 / 01期

关键词：

Buckling - Thin walled structures - Bending strength - High strength steel;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

In order to investigate the distortional buckling behavior of 550 MPa high strength cold-formed thin-walled channel flexural members, 12 groups of static tests of high strength cold-formed thin-walled channel flexural members with 3 kinds of edge stiffeners including upright, inclined and complex edge stiffeners were conducted, including 6 pure bending tests and 6 non-pure bending tests. It is indicated that the edge stiffener is a key factor that influences the member's distortional buckling or interaction between local and distortional buckling. The bending strength of non-pure bending members is higher than that of pure bending members for the same edge stiffener. Moreover, the increased magnitude is related to the member's buckling modes. For the members in which only distortional buckling occurs, the increased magnitude is the greatest. For the members in which interaction between local and distortional buckling occurs, the increased magnitude of members whose failure is caused by distortional buckling takes the second place, and the increased magnitude of members whose failure is caused by local buckling is the least. © 2016, Editorial Office of China Civil Engineering Journal. All right reserved.

引用

页码：53 / 61