| 三向球面空腹网壳稳定性分析 |
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| 引用本文： | 李峰,林山.三向球面空腹网壳稳定性分析[J].低温建筑技术,2010,32(8):56-58. |
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| 作者姓名： | 李峰 林山 |
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| 作者单位： | 西安建筑科技大学土木学院,西安,710055 |
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| 摘 要： | 利用非线性有限元法对三向球面空腹网壳稳定性能进行了研究,采用了特征值屈曲分析和非线性屈曲分析两种方法来考查了三向球面空腹网壳的屈曲模态和失稳全过程。通过大规模的几何参数分析得到了不同矢跨比、网壳厚度和不同支承条件下的荷载—位移曲线和极限承载力。最后将三向球面空腹网壳与相同用钢量的单层网壳进行了对比。
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| 关 键 词： | 三向球面空腹网壳 特征值屈曲分析 非线性屈曲分析 极限荷载 |
STABILITY ANALYSIS OF THREE-DIMENSIONAL RETICULATED VIERENDEEL SHELLS |
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| LI Feng,LIN Shan.STABILITY ANALYSIS OF THREE-DIMENSIONAL RETICULATED VIERENDEEL SHELLS[J].Low Temperature Architecture Technology,2010,32(8):56-58. |
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| Authors: | LI Feng LIN Shan |
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| Affiliation: | (School of Civil Engineering,Xi＇ an Univ. of Arch. and Tech. ,Xi＇ an 710055 ,China) |
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| Abstract: | Based on nonlinear finite element method, the stability of three-dimensional reticulated vierendeel shells are analysed. The buckling modal and the whole course of analysis methods, the eigen-bucking analysis and nonlinear bucking analysis. instability are shown by two Through large-scale analysis of the geometrical parameters, including the rise-to-span, thickness of the shell and boundary condition, the ultimate capacity and the load-displacement curve are obtained. Finally, the comparison between three-dimensional reticulated vierendeel shell and the single layer shell with the same steel consumption is carried out. |
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| Keywords: | three-dimensional reticulated vierendeel shell eigen-buckling analysis ultimate load |
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