<strong>Z</strong>形截面檩条在风吸力作用下的整体稳定分析

童根树; 徐媛杰; 张磊

doi:10.13204/j.gyjz201312004

Z形截面檩条在风吸力作用下的整体稳定分析

doi: 10.13204/j.gyjz201312004

1.
浙江大学建筑工程学院,杭州 310058

详细信息

作者简介:
童根树，男，1963年出生，博士，教授，博士生导师。电子信箱:tonggs@ccea.zju.edu.cn

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出版历程
- 收稿日期: 2013-08-04
- 刊出日期: 2013-12-20

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

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

摘要

摘要: 采用开口薄壁构件理论,推导了上翼缘受约束的Z形截面简支檩条在风吸力作用下发生弯扭屈曲的总势能,提出无拉条的与带1道拉条的檩条的临界弯矩表达式,并与采用ANSYS板壳单元建模的结果进行对比。探讨了檩条整体稳定的内在本质,并通过计算表明拉条可以作为檩条的侧向完全支撑。
- 檩条 /
- 整体稳定 /
- 临界弯矩 /
- 完全支撑
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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参考文献(11)

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