| 突变理论在单层网壳屈曲分析中的应用 |
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| 引用本文： | 靳卫恒,张毅刚.突变理论在单层网壳屈曲分析中的应用[J].工业建筑,2009(Z1). |
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| 作者姓名： | 靳卫恒 张毅刚 |
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| 作者单位： | 北京工业大学建筑工程学院; |
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| 基金项目： | 国家重点科技基金项目(90715034) |
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| 摘 要： | 将突变理论应用于大跨空间结构,推导了单层网壳结构的总势能方程、平衡曲面方程和分叉集方程,证明了单层网壳结构的突变模型符合尖点突变模型,并且通过计算拟合出结果各曲线和数据,验证了理论推导的正确性,并且为研究连续倒塌得出了一些有意义的数据。
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| 关 键 词： | 突变理论 能量法 连续倒塌 |
APPLICATION OF CATASTROPHS THEORY IN BUCKLING ANALYSIS OF SINGLE-LAYER SPHERICAL SHELL |
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| Jin Weiheng Zhang Yigang.APPLICATION OF CATASTROPHS THEORY IN BUCKLING ANALYSIS OF SINGLE-LAYER SPHERICAL SHELL[J].Industrial Construction,2009(Z1). |
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| Authors: | Jin Weiheng Zhang Yigang |
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| Affiliation: | Beijing University of Technology;Beijing 100124;China |
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| Abstract: | It is applied Catastrophic theory to long-span space structures.A catastrophic theory is presented to derive an equation of total potential energy,the equation of the balanced surface and bifurcation set equation.It has been proved that the catastrophic mode of single-layer reticulated shell structure confirms cusp catastrophic mode.A series of curves are obtained based on data fitting and curve fitting,which confirms the correctness of the theoretical derivation.In addition,it provides some useful data for... |
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| Keywords: | catastrophic theory enegy mathod progressive collapse |
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