扭转耦联效应的随机分析及讨论

英文篇名：ANALYSIS AND DISCUSSION OF RESPONSE OF TORSION COUPLING UNDER RANDOM EXCITATION
中文刊名：内蒙古农业大学学报(自然科学版)
英文刊名：Journal of Inner Mongolia Agricultural University(Natural Science Edition)
作者：王文武 ; 刘娟 ; 付春
英文作者：WANG Wen-wu ; LIU Juan FU Chun (Liaoning chmeical&petrolum university ; Fushun 113001 ; China)
中文关键词：基础隔震 ; 随机反应 ; 等效线性化 ; 扭转耦联 ; 虚拟激励法
英文关键词：Base isolation ; random response ; equivalent linearization ; translation-torsion ; pseudo excitation method
出版日期：2009-06-15
机构：辽宁石油化工大学储运与建筑工程学院;
年：2009
期：02
出版单位：内蒙古农业大学学报(自然科学版)

摘要

目的:对单向偏心隔震结构进行随机反应分析。方法:对隔震层非线性问题进行线性化,利用过滤白噪声地震动模型,应用虚拟激励法进行计算。结果:计算了偏心结构响应的自功率谱密度和方差。结论:得出扭转耦联效应不可忽视,设置隔震层可以消减上部结构的响应,适当的加大隔震层的扭转柔性可以降低结构的响应,也就是可以减小扭转效应。
Investigations into the non-linear model of base isolation device with equivalent linearization method.Random analysis of eccentric isolated structure is performed with pseudo excitation method and filter white noise ground excitation model.The power spectrum density and variance is calculated,translation-torsion coupling response of eccentric structure is discussed.The torsion coupling response can not be ignored and The response of upper structure can be reduced by use of isolated layer.With the increasing of torsional flexible of isolated layer,the response of structure is decreased as well as torsional effect of eccentric isolated structure.

引文

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