大底盘多塔楼结构的整体稳定计算  

Overall Stability Analysis of Multi-Tower-Building Structures with Enlarged Base at the Bottom

作　　者：包世华[1] 王建东[2] 

机构地区：[1]清华大学土木系,北京100084 [2]河北省建筑设计研究院,石家庄050011

出　　处：《建筑结构》1998年第2期8-12,共5页Building Structure

基　　金：北京市和河北省建委科学基金资助项目

摘　　要：用沿高度方向分段连续化的方法,对底部为大底盘、上部为多塔楼的高层建筑结构建立了整体的稳定方程,用常微分方程求解器COLSYS求解,为这种复杂的高层建筑结构的整体稳定计算提供了一种简化算法.A piecewise continuous model is taken as the computational model for the overall stability analysis of multi-tower-building structures with enlarged base at the bottom. The stability differential equations for the model are derived. Moreover, the critical loads and the corresponding buckling modes are determined numerically by means of the ODE(Ordinary Differential Equation) Solver, which is a program developed for solving various ODEs, including eigenvalue problems.

关 键 词：高层建筑 结构 大底盘 多塔楼 整体稳定 

分 类 号：TU973.25[建筑科学—结构工程]