| MG(南汽)展示厅异型单层网壳结构稳定性分析 |
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| 引用本文： | 姚东生. MG(南汽)展示厅异型单层网壳结构稳定性分析[J]. 结构工程师, 2008, 24(2): 39-43 |
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| 作者姓名： | 姚东生 |
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| 作者单位： | 同济大学结构工程与防灾研究所,上海,200092 |
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| 摘 要： | 在介绍几何非线性有限元法一般列式（T．L）的基础上，推导了三维空间梁单元的刚度矩阵，采用有限元非线性分析理论对MG（南汽）展示厅空间屋盖的整体稳定进行了全过程分析。文中分别讨论了该网壳在有无初始安装偏差影响状态下的稳定性态，采用了弧长法求解非线性方程，得到了该空间网壳结构整体稳定的全过程P-△曲线，为此类异型网壳的设计和分析提供了有价值的参考。
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| 关 键 词： | 几何非线性分析 网壳结构 整体稳定性 特征值分析 |
| 修稿时间： | 2007-07-16 |
Stability Analysis of Single Layer Special Latticed Shell for Exhibited Hall of MG |
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| YAO Dongsheng. Stability Analysis of Single Layer Special Latticed Shell for Exhibited Hall of MG[J]. Structural Engineers, 2008, 24(2): 39-43 |
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| Authors: | YAO Dongsheng |
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| Affiliation: | YAO Dongsheng (Research Institute of Structural Engineering , Disaster Reduction,Tongji University,Shanghai 200092,China) |
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| Abstract: | In this paper,the stiffness matrix of a three dimensional beam element was deduced on the base of introduced geometric nonlinear finite element in T.L Formulation.The geometrically nonlinear overall stability analysis with or without considering the effects of geometric imperfections of the latticed shell have been con- ducted by means of the nonlinear finite element method.And the dynamic characters have been studied.The arc-length method was utilized to solve the nonlinear equation systems,and the P-A cur... |
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| Keywords: | geometric nonlinear analysis latticed shell structure overall stability eigenvalue analysis |
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