ANALYSIS OF GLOBAL STABILITY OF COLD-FORMED Z PURLINS UNDER WIND SUCTION

Tong Genshu; Xu Yuanjie; Zhang Lei

doi:10.13204/j.gyjz201312004

Volume 43 Issue 12

Dec. 2014

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Tong Genshu, Xu Yuanjie, Zhang Lei. ANALYSIS OF GLOBAL STABILITY OF COLD-FORMED Z PURLINS UNDER WIND SUCTION[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(12): 26-33. doi: 10.13204/j.gyjz201312004

Citation:

Tong Genshu, Xu Yuanjie, Zhang Lei. ANALYSIS OF GLOBAL STABILITY OF COLD-FORMED Z PURLINS UNDER WIND SUCTION[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(12): 26-33. doi: 10.13204/j.gyjz201312004

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ANALYSIS OF GLOBAL STABILITY OF COLD-FORMED Z PURLINS UNDER WIND SUCTION

doi: 10.13204/j.gyjz201312004

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

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

Abstract

Abstract

Based on the buckling theory of thin-walled members，it was derived the total potentials for instability of cold-formed Z-purlins under wind suction whose lateral displacement of top flange was prohibited. The expressions of the critical moments of the purlins without and with one sag rod were obtained. The results were compared with numerical results using shell elements of ANSYS. It was explored the internal essence of the global stability of the purlin，it was shown by the calculation that the sag rod could be regarded as lateral full support of the purlin.
- purlin,
- global stability,
- critical moment,
- full support

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References(11)

References

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American Institute of Iron and Steel.North American Specificationfor the Design of Cold-Formed Steel Structural Members［S].2001.

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[6] Kemp L,Dunaiski P E,Bird W W.Structural Behaviour of Cold-Formed Profiles with Emphasis on Zeta-Profile［J].Journal ofConstructional Steel Research, 1995, 34(2):207-224.

[7] Seek M W,Murray T M.Lateral Restraint Forces in Z-SectionRoof Systems Using the Component Stiffness Method［J].Journalof Constructional Steel Research, 2008, 64(9):1366-1378.

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[10] 吴强.冷弯薄壁檩条在风吸力作用下的强度研究［D].杭州:浙江大学建筑工程学院, 2012.

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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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