作　　者： ; ;

机构地区： 华南理工大学建筑学院建筑系

出　　处： 《华南理工大学学报（自然科学版）》 2000年第2期99-105,共7页

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为实腹筒体,假设考虑剪力滞后的位移函数,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. 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.

关 键 词： 框筒结构 二阶分析 摄动法 高层建筑

领　　域： [建筑科学]