轴压力下薄壳边界效应的刚度与稳定性分析  

THE STIFFNESS COEFFICIENTS AND STABILITY ANALYSIS UNDER THE AXIAL COMPRESSION BY BOUNDARY EFFECT THEORY OF SHELLS

作　　者：金问鲁 

机构地区：[1]杭州市城建设计院

出　　处：《空间结构》1996年第4期2-6,M001,共6页Spatial Structures

摘　　要：作者前已指出薄壳边界效应理论并不限于轴对称壳及扁壳，而可发展为实用薄壳力学［１～３］。同时，薄壳的稳定分析也是当前的困难问题［４］，对于压弯杆件作者曾提出用刚度系数法来分析稳定问题，这种方法不仅可以分析单杆的稳定，而且可以分析多杆如连续框架的稳定［５］。本文从变分原理出发，建立了轴压力下薄壳效应的方程，由此求出刚度系数并作了稳定性分析。值得提出，刚度系数不仅可用作稳定性分析，而且用来分析结构具有很高的应用价值。例如在高层建筑结构设计中常用到Ｐ－Δ分析法，用作者的刚度系数法会获得更准确的结果［６］。The author has pointed out that the boundary effect theory can be applied to a wide regien of shells. At present, the stability analysis of shells is very difficult. For compression bending members the author has suggested the stiffness coefficient method to analysis the general rigid frames and their behaviour of stability. In present paper, the author started from the variational principles to establish the control equations to find the stiffness coefficients and the stability behaviours.

关 键 词：薄壳 轴压 边界效应 刚度系数 高层建筑结构 压弯杆件 稳定性分析 稳定分析 

分 类 号：TU33[建筑科学—结构工程] TU392.3