ANALYSIS OF GLOBAL STABILITY OF C-PURLINS UNDER WIND SUCTION

Tong Genshu; Xu Yuanjie; Zhang Lei

doi:10.13204/j.gyjz201312005

Volume 43 Issue 12

Dec. 2014

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Tong Genshu, Xu Yuanjie, Zhang Lei. ANALYSIS OF GLOBAL STABILITY OF C-PURLINS UNDER WIND SUCTION[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(12): 34-37,11. doi: 10.13204/j.gyjz201312005

Citation:

Tong Genshu, Xu Yuanjie, Zhang Lei. ANALYSIS OF GLOBAL STABILITY OF C-PURLINS UNDER WIND SUCTION[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(12): 34-37,11. doi: 10.13204/j.gyjz201312005

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ANALYSIS OF GLOBAL STABILITY OF C-PURLINS UNDER WIND SUCTION

doi: 10.13204/j.gyjz201312005

1.
Department of Civil Engineering,Zhejiang University,Hangzhou 310058,China

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

Abstract

Abstract

Using the theory of thin-walled members，this paper derived the total potential for bending and torsional buckling of C purlins under wind suction，the expression of the critical moments of the purlins was proposed，whose results were compared with those of ANSYS model. The critical moment formula without taking account of deformation effect before buckling was given，and the possible use of the model and the formulas were pointed out by comparing EC3 method with the test results，showing that EC3 method was conservative，yet the proposed formula was simple, whose calculated length coefficient was 10% smaller and bearing capacity was about 20% higher than EC3 method.
- purlin,
- overall stability,
- critical moment

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References(6)

References

[2] Pekoez T.Diaphragm-Braced Thin-Walled Channel and Z-SectionBeams,in Beams and Beam Columns［M].London: AppliedScience Publishers, 1983.

CECS 102:2002 门式刚架轻型房屋钢结构技术规程［S].

[3] Toma T,Wittemann K.Design of Cold-Formed Purlins and GirtsRestrained by Sheeting ［J].Journal of Constructional SteelResearch, 1994, 31(2):149-168.

[4] Sokol L.Stability of Cold-Formed Purlins Braced by Steel Sheeting[J].Thin Walled Structures, 1996, 25(4):247-268.

[5] 童根树.钢结构的平面外稳定(修订版)［M].北京:中国建筑工业出版社, 2013.

[6] Eurocode 3.Part 1-3: General Rules-Supplementary Rules forCold-Formed Members and Sheeting[S].2006.

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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