高耸结构的竖向地震随机响应分析  

RESPONSE ANALYSIS OF A HIGH BUILDING UNDER VERTICAL STOCHASTIC GROUND MOTION

作　　者：沈俊杰 张宪宏[2] 

机构地区：[1]宁波机电工业研究设计院 [2]清华大学

出　　处：《土木工程学报》1993年第6期56-63,共8页China Civil Engineering Journal

摘　　要：本文把地震作为非平稳随机过程考虑,用觋代控制理论的时域方法对对称线性变截面高耸结构进行了竖向地震响应分析。讨论了忽略振型耦合反应引起的误差。还提出了绝对加速度均方差反应谱,以便分析计算和对反应谱理论进一步研究。Based on modern control theory in time domain, the vertical earthquake response of a model cantilever structure with symmetrical linear variable section is computed. The errors that might be induced by neglecting the coupling of vibration shape modes have been discussed. The response spectrum of mean square variance of absolute acceleration are put forward that could be used in the calaulation of vertical seismic stress in structure and that might also be useful for furture study on response spectrum theory.

关 键 词：高耸结构 竖向地震 随机响应 

分 类 号：TU973.212[建筑科学—结构工程]