高层框筒和筒中筒结构的整体稳定分析  

OVERALL STABILITY ANALYSIS OF TALL FRAMED-TUBE AND TUBE IN TUBE STRUCTURE

作　　者：李恒增[1] 徐新济[1] 冯虹[1] 

机构地区：[1]同济大学,上海200092

出　　处：《上海力学》1999年第4期388-395,共8页Chinese Quarterly Mechanics

摘　　要：本文将有限元法用于高层筒体结构的整体稳定分析。导出了截面含双对称轴的矩形筒中筒单元刚度矩阵和单元几何刚度矩阵。可用于框筒和筒中筒结构的整体稳定计算。计算结果验证了本文方法的精度。In this paper, the finite element method is used for overall stability analysis of tall building tubular structures. The stiffness matrix and geometric stiffness matrix of rectangular tube-in-tube element of which the cross-section has bisymmetric axes are developed. It can be used for overall stability analysis of tall framed-tube and tube-in-tube structure. The accuracy of the method is confirmed by examples.

关 键 词：筒中筒 框筒 内筒 高层筒体结构 整体稳定分析 

分 类 号：TU973.17[建筑科学—结构工程]