对钢结构设计规范截面塑性发展系数取值规定的建议
he Proposal to Steel design specifications about cross-section plastic development coefficient
我国钢结构规范和国外规范都对截面塑性开展系数做了具体规定，但具体数值有一定的差别。我国规范按构件截面类型对塑性发展系数的取值做了具体规定，其中 H型钢的塑性开展系数为1.05，而国外规范有的已经加大到1.08，甚至加大到1.15。本文应用ANSYS有限元软件对几种 H型钢进行了分析，分析结果显示我国规范对截面塑性发展系数的取值规定偏小。根据有限元分析结果、钢结构规范对构件挠度的取值规定及相关公式计算出几种 型钢的塑性开展系数,为具体工程设计提供参考。
he cross-section plastic development coefficient is specified in Chinese Steel norm and abroad norms,but values are not different. the cross-section plastic development coefficient is specified according to cross-section in Chinese Steel norms,it is 1.05 to H Steel ,but it is 1.08, or 1.15 in abroad norms. In this paper, several H steels are analyzed througn ANSYS FEA software, the results indicate that the cross-section plastic development coefficient is low in Chinese Steel norm. The cross-section plastic development coefficient Several H steels are calculated According to results of finite element analysis,specificasions to component deflection in steel norms and related formulas so that it can provide References to project design.
巩玉发、郭殿申
金属压力加工焊接、金属切割、金属粘接材料科学
塑性开展系数塑性应变挠度
he cross-section plastic development coefficient Plastic strain Deflection
巩玉发,郭殿申.对钢结构设计规范截面塑性发展系数取值规定的建议[EB/OL].(2007-12-19)[2025-06-02].http://www.paper.edu.cn/releasepaper/content/200712-446.点此复制
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