Buckling analysis of thin-walled cold-formed steel structural members using complex finite strip method

被引:15
|
作者
Naderian, H. R. [1 ]
Ronagh, H. R. [2 ]
机构
[1] Univ Ottawa, Dept Civil Engn, Ottawa, ON K1N 6N5, Canada
[2] Univ Queensland, Sch Civil Engn, Brisbane, Qld 4072, Australia
关键词
Cold-formed; Complex finite strip method; Local buckling; Shear buckling; Distortional buckling; Global buckling; CROSS-SECTION MEMBERS; MODE DECOMPOSITION; CHANNEL SECTIONS; C-SECTION; SHEAR; DERIVATION; FORMULAS;
D O I
10.1016/j.tws.2015.01.008
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
In this paper, a generalised complex finite strip method is proposed for buckling analysis of thin-walled cold-formed steel structures. The main advantage of this method over the ordinary finite strip method is that it can handle the shear effects due to the use of complex functions. In addition, distortional buckling as well as all other buckling modes of cold-formed steel sections like local and global modes can be investigated by the suggested complex finite strip method. A combination of general loading including bending, compression, shear and transverse compression forces is considered in the analytical model. For validation purposes, the results are compared with those obtained by the Generalized Beam Theory analysis. In order to illustrate the capabilities of complex finite strip method in modelling the buckling behavior of cold-formed steel structures, a number of case studies with different applications are presented. The studies are on both stiffened and unstiffened cold-formed steel members. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码:74 / 83
页数:10
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