| 塑性区法在平面钢框架稳定分析中的应用 |
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| 引用本文： | 胡强.塑性区法在平面钢框架稳定分析中的应用[J].广西工学院学报,2006,17(1):61-65. |
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| 作者姓名： | 胡强 |
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| 作者单位： | 广西工学院建筑工程系,广西,柳州,545006 |
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| 摘 要： | 应用结构稳定性分析的塑性区理论对平面钢框架进行平面内稳定性研究.基于塑性区理论建立单元各纤维元与单元位移之间的关系,采用修改的拉格朗日列式法和虚功原理建立结构的刚度矩阵和刚度方程.然后对Williams框架进行了分析,获得了令人满意的结果,与文献中计算结果比较表明塑性区法由于其充分考虑了材料的塑性扩展,因而是比其他稳定性分析方法更为精确的方法.
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| 关 键 词： | 塑性区法 虚功原理 稳定性 平面刚架 |
| 文章编号： | 1004-6410（2006）01-0061-05 |
| 收稿时间： | 2005-11-20 |
| 修稿时间： | 2005年11月20 |
Application of plastic district theory to stability analysis of plane Rigid Frame |
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| HU Qiang.Application of plastic district theory to stability analysis of plane Rigid Frame[J].Journal of Guangxi University of Technology,2006,17(1):61-65. |
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| Authors: | HU Qiang |
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| Affiliation: | Department of Civil Engineering, Guangxi University of Technology,Liuzhou 545006,China |
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| Abstract: | Plasticity district theory has been applied to plane frame on stability analysis.The relationship of displacement of each element and each fiber in it is built up on the basis of plasticity district theory.Structure matrix and rigidity equation is established by the U.L.method and virtual work theory.And then the above mentioned conclusion has been used to analyze Williams frame.The calculated results are satisfactory.And compared with those in literatures,plastic district theory is an accurate method and an effective tool on the stability analysis of structure. |
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| Keywords: | plastic district theory principle of virtual work stability plane rigid frame |
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