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

Zhang Shuigen; Tong Genshu; Zhang Lei

doi:10.13204/j.gyjz201312007

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 BENDING[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(12): 45-51,33. doi: 10.13204/j.gyjz201312007

Citation:

Zhang Shuigen, Tong Genshu, Zhang Lei. LOCAL AND DISTORTIONAL BUCKLING OF COLD-FORMED C AND Z-SECTION MEMBERS UNDER BENDING[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(12): 45-51,33. doi: 10.13204/j.gyjz201312007

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

doi: 10.13204/j.gyjz201312007

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 C and Z sections under bending. In the current Australian and American codes the thin-walled member theory is used to analyze the distortional buckling loads. In this method a reduced restraining rigidity of web to flange is adopted because such a model overestimates the rigidity of flange-lip section. It was derived the formulas to calculate restraining rigidities of web to flange, by using the equivalent bending rigidity of the lip，as well as the theory of plate element，which were used to calculate the local and distortional bucklings of flange-lip sections，whose results were compared with those of FEM，by which the buckling factors had excellent accuracy，and they were on the safe side.
- local buckling,
- distortional buckling,
- cold-formed section steel

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References(9)

References

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