| 变截面门式刚架结构的有限元分析 |
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| 引用本文： | 王文明,郭彦林,赵熙元. 变截面门式刚架结构的有限元分析[J]. 建筑结构, 1999, 0(10) |
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| 作者姓名： | 王文明 郭彦林 赵熙元 |
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| 作者单位： | 清华大学土木系!北京100084(王文明，郭彦林)，重庆钢铁设计研究院!630013(赵熙元) |
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| 摘 要： | 论述了变截面梁单元有限元线弹性分析方法，以及不同类型梁单元（等截面梁单元、普通位移模式变截面梁单元、积分位移模式变截面梁单元）对变截面刚架内力分析的差异。在大量算例分析的基础上，给出两段变截面梁（远端铰接）等效转动惯性矩的计算公式，供设计人员参考。
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| 关 键 词： | 门式刚架 变截面梁 有限元 等效刚度 |
Finite Element Analysis of Portal Frame with Tapered Members |
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| Wang Wenming,Guo Yanlin,Zhao Xiyuan. Finite Element Analysis of Portal Frame with Tapered Members[J]. Building Structure, 1999, 0(10) |
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| Authors: | Wang Wenming Guo Yanlin Zhao Xiyuan |
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| Abstract: | The authors present a finite element formulation of a portal frame with tapered members, and demonstrate the convergent difference of three types of finite elements used in the analysis. A lot of numerical studies are carried out to investigate the behavior of the portal frame and conduct a set of design formula for evaluating the equivalent stiffness of the beams with tapered sections. |
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| Keywords: | portal frame tapered members finite element method equivalent stiffness |
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