高层连体结构振型及其参与系数的分析  

Analysis of Vibration Modes and Participating Coefficients for High-rise Connecting Structure

作　　者：卞朝东[1] 李爱群[1] 娄宇[2] 吴耀辉[1] 

机构地区：[1]东南大学土木工程学院,南京210096 [2]中国电子工程设计院,北京100840

出　　处：《建筑科学》2002年第4期20-24,共5页Building Science

摘　　要：以双塔连体结构为例,运用振型分解法,采用串并联刚片层模型,对多塔连体结构在水平地震作用下的动力方程进行了分析,对振型和振型参与系数的数学概念和物理力学概念进行了深入讨论,并考虑了结构的对称性、地震行波效应对振型参与系数的影响。同时文中对连体内力和振型的选取作了简要分析。In this paper, on the basis of the example of connected double tower structure, the dynamic equation of multi tower connecting structure subject to horizontal earthquake is analyzed by applying the mode decomposition method and adopting the serial parallel layer model. The mathematics and mechanics concepts of vibration modes and participating coefficients are discussed, and the influence of the symmetry of structure and the traveling wave effect of earthquake on the participating coefficient of vibration mode is taken into account. At the same time, inner forces of the connecting body and selection of vibration modes are simply analyzed.

关 键 词：高层连体结构 振型分解法 对称结构 不对称结构 

分 类 号：TU973.2[建筑科学—结构工程]