竖向不规则结构的抗震性能评估

英文篇名：Seismic performance evaluation for a vertical irregular structure
中文刊名：振动与冲击
英文刊名：Journal of Vibration and Shock
作者：张凯 ; 刘洪兵 ; 王巍峰 ; 刘玮
英文作者：ZHANG Kai1 ; LIU Hong-bing1 ; WANG Wei-feng1 ; LIU Wei2(1.School of Mechanics ; Civil Engineering and Architecture ; Northwestern Polytechnical University ; Xi'an 710072 ; China ; 2.Department of Civil Engineering ; Xi'an Technological University ; Xi'an 710032 ; China)
中文关键词：竖向不规则结构 ; 模态Pushover方法 ; 等效单自由度 ; 等强度延性需求谱
英文关键词：vertical irregular structure ; modal pushover analysis(MPA) ; equivalent single degree of freedom sys-tem ; constant-strength ductility demand spectrum method
出版日期：2009-07-25
机构：西北工业大学力学与土木建筑学院;西安工业大学建筑工程系;
年：2009
期：07
出版单位：振动与冲击

摘要

基于模态Pushover方法和等强度延性需求谱理论,给出了竖向不规则结构评估的方法和步骤。通过模态Pushover方法,以考虑竖向不规则结构在地震作用下高振型的影响,利用等强度延性需求谱对等效单自由度体系进行计算,得到其延性和位移需求,并转化为多自由度体系的位移需求。利用上述方法对典型的竖向不规则结构算例进行了分析计算,结果表明该方法能够有效应用于竖向不规则结构的计算。
Based on the modal pushover analysis(MPA)and the constant-strength ductility demand spectrum method,the basic solving process of a vertical irregular structure was put forward.Using the modal pushover analysis,the influence of higher modes could be taken into account.Using the constant-strength ductility demand spectrum method,the ductility and displacement demand of the equivalent single degree of freedom system were obtained,then they were trans-lated into the displacement demand of a multi-degree of freedom system.Using these methods the examples of typical ir-regular vertical structures were analyzed,the results demonstrated that these methods could be used in the seismic per-formance calculation of a vertical irregular structure effectively.

引文

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