矩形筒中筒结构动力特性的简化分析  

Simplified Analysis of Dynamic Behaviors of Rectangular Tube-in-tube Structures

作　　者：李恒增[1] 翁大根[1] 徐新济 

机构地区：[1]同济大学建筑工程系,同济大学结构理论研究所

出　　处：《同济大学学报（自然科学版）》1996年第6期719-725,共7页Journal of Tongji University:Natural Science

摘　　要：导出了截面合双对称轴的矩形筒中简单元的刚度矩阵，这可使框筒和筒中筒结构的动力特性分析大大简化．计算表明：文中方法具有较高的计算精度和效率．In this paper the stiffness matrix of rectangular tube-in-tube element, of which the cross-section has bisymmetric axes, is devoloped. It can be used to simplify analysis of dynamic behaviors of the framed-tube and tube-in-tube structures considerably. Numerical examples show that the method in this paper has the advantages of accuracy and effectiveness.

关 键 词：筒中筒结构 框筒 内筒 动力特性 

分 类 号：TU333.01[建筑科学—结构工程]