| 钢框架弹塑性非线性有限元分析方法的改进 |
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| 引用本文： | 赵金城,沈祖炎.钢框架弹塑性非线性有限元分析方法的改进[J].钢结构,1994(4). |
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| 作者姓名： | 赵金城 沈祖炎 |
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| 作者单位： | 同济大学 讲师
(赵金城)，同济大学 教授(沈祖炎) |
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| 摘 要： | 本文用有限元法进行钢框架非线性分析,几种常见方法进行了比较后,提出了采用割线刚度矩阵对多层钢框架进行非线性分析的全量法,分析了塑性区沿单元截面高度及长度方向的扩展,采用应变判断屈服的概念,并编制了有限元程序,计算结果令人满意。
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| 关 键 词： | 钢框架 弹塑性 非线性 有限元 |
IMPROVEMENT IN NONLINEAR ELASTOPLASTIC FEM ANALYSIS OF STEEL FRAME |
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| Zhao Jincheng Shen Zuyan.IMPROVEMENT IN NONLINEAR ELASTOPLASTIC FEM ANALYSIS OF STEEL FRAME[J].Steel Construction,1994(4). |
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| Authors: | Zhao Jincheng Shen Zuyan |
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| Affiliation: | Tongji University |
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| Abstract: | In comparison with several conventional methods on non-linear frame analysis,ttic paper put forward a non-linear analysis method of multi-storey using secant module of stiffness.In analysis,expansion of plastic zone both in depth of section and over length of members were considered.Yielding was judged by growth in strain.A FEM analysis program was compiled which gives satisfied results. |
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| Keywords: | Steel frame Elasto-plastic Non-linear Finite clement |
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