LOCAL AND DISTORTIONAL BUCKLING OF COLD-FORMED C AND Z-SECTION MEMBERS UNDER AXIAL COMPRESSION

Zhang Shuigen; Tong Genshu; Zhang Lei

doi:10.13204/j.gyjz201312006

Volume 43 Issue 12

Dec. 2014

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Zhang Shuigen, Tong Genshu, Zhang Lei. LOCAL AND DISTORTIONAL BUCKLING OF COLD-FORMED C AND Z-SECTION MEMBERS UNDER AXIAL COMPRESSION[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(12): 38-44. doi: 10.13204/j.gyjz201312006

Citation:

Zhang Shuigen, Tong Genshu, Zhang Lei. LOCAL AND DISTORTIONAL BUCKLING OF COLD-FORMED C AND Z-SECTION MEMBERS UNDER AXIAL COMPRESSION[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(12): 38-44. doi: 10.13204/j.gyjz201312006

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LOCAL AND DISTORTIONAL BUCKLING OF COLD-FORMED C AND Z-SECTION MEMBERS UNDER AXIAL COMPRESSION

doi: 10.13204/j.gyjz201312006

1.
1. Huahui Engineering Design Group,Shaoxing 312000,China;
2.
2. Institute of High-Performance Materials and Structures,Zhejiang University,Hangzhou 310058,China

Received Date: 2013-08-04
Publish Date: 2013-12-20

Abstract

Abstract

It was analyzed the distortional buckling of the flange-lip section in closed form solution. Through modelling the flange-lip section as a parallel system resisting bending loads, it was also proposed formulas to calculate the equivalent bending rigidity of the lip. Using the analytic methods，the bucklings of Z and C sections under axial loading were investigated. The critical stresses of local and distortional bucklings，buckling factors，together with buckling wave-length. Approximate formulas with excellent accuracy were proposed.
- local buckling,
- distortional buckling,
- cold-formed section steel