| 高层框筒结构二阶分析变分摄动法 |
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| 引用本文： | 徐彬,梁启智.高层框筒结构二阶分析变分摄动法[J].华南理工大学学报(自然科学版),2000,28(2):99-105. |
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| 作者姓名： | 徐彬 梁启智 |
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| 作者单位： | XU Bin LIANG Qi_zhi
（Dept. of Civil
Engineering, South China Univ. of Tech., Guangzhou 510640, China） |
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| 摘 要： | 采用摄动法求解框筒结构的二阶位移，首先将框筒结构等效连续化实腹筒体，假设考虑剪滞后的位移函数，由最小势能原理建立筒体分析的微分方程，将位移按小参数展开，求解各阶方程组，可得到二阶位移的渐近解。
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| 关 键 词： | 框筒结构 二阶分析 摄动法 高层建筑 |
| 文章编号： | 1000-565X(2000)02-0099-07 |
Second-Order Analysis of Framed-Tube Structures by Perturbation Method |
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| XU Bin,LIANG Qi_zhi.Second-Order Analysis of Framed-Tube Structures by Perturbation Method[J].Journal of South China University of Technology(Natural Science Edition),2000,28(2):99-105. |
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| Authors: | XU Bin LIANG Qi_zhi |
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| Abstract: | In this paper, second_order displacements of framed_tube structures are obtained by the Perturbation Method. Firstly, the framed_tube is replaced by an equivalent continuous tube. The displacement functions including the influence of shear_lag effect are assumed. Secondly, the Minimum Potential Energy Principle is used to set up the equations. Using a small parameter, the displacements are expanded. Lastly, from the asymptotic equations, the second_order displacements are obtained directly. |
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| Keywords: | framed_tube structure second_order analysis perturbation method |
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