大底盘双塔连体结构的能量分析研究
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摘要
针对大型复杂结构的能量分析问题,采用SAP 2000建立大底盘双塔连体结构模型,利用MATLAB和SAP 2000的接口程序对其进行弹性能量分析,给出结构能量反应和单自由度体系能量反应之间的关系,以此分析结构的振型分解能量和建立能量反应谱,研究结构在三维地震作用下的弹塑性能量反应,并与无连体的情况进行比较。研究表明:振型分解能量分析法可以快速、有效地估算结构的能量反应,连体结构的抗震性能在一定程度上优于无连体结构。
For the energy analysis problem of large and complex structures,SAP 2000 was used to established a model of the enlarged-base twin-tower with connective structures,and elastic energy analysis was carried out by using the corresponding program of MATLAB and SAP 2000,and gave the relationship between the structural energy response and the energy response of a single degree of freedom system was given in order to carry out a structural vibration modal decomposition energy analysis and build an energy response spectrum. It was studied the elasticplastic energy response of the structure under the action of three-dimensional seism,whose result was compared with that of the case without connected structures. The studies showed that the vibration modal decomposition energy analysis method could quickly,efficiently estimate the energy response of structures,and the aseismic performance of a connecting structure was better than non-connected structure in a certain extent.
For the energy analysis problem of large and complex structures,SAP 2000 was used to established a model of the enlarged-base twin-tower with connective structures,and elastic energy analysis was carried out by using the corresponding program of MATLAB and SAP 2000,and gave the relationship between the structural energy response and the energy response of a single degree of freedom system was given in order to carry out a structural vibration modal decomposition energy analysis and build an energy response spectrum. It was studied the elasticplastic energy response of the structure under the action of three-dimensional seism,whose result was compared with that of the case without connected structures. The studies showed that the vibration modal decomposition energy analysis method could quickly,efficiently estimate the energy response of structures,and the aseismic performance of a connecting structure was better than non-connected structure in a certain extent.
引文
[1]周云.黏滞阻尼减震结构设计[M].武汉:武汉理工大学出版社,2006:199-204.
[2]张辉东,王元丰.基于能量指标的高层钢结构动力弹塑性抗震能力研究[J].土木工程学报,2012,45(6):65-73.
[3]肖明葵.基于性能的抗震结构位移及能量反应分析方法研究[D].重庆:重庆大学,2004:60-63.
[4]常磊.结构地震能量反应分析及其在超高层巨型框架结构中的应用研究[D].合肥:合肥工业大学,2011:15-95.
[5]中国建筑科技标准设计研究院.SAP 2000中文版使用指南[M].北京:人民交通出版社,2008:464-479.
[2]张辉东,王元丰.基于能量指标的高层钢结构动力弹塑性抗震能力研究[J].土木工程学报,2012,45(6):65-73.
[3]肖明葵.基于性能的抗震结构位移及能量反应分析方法研究[D].重庆:重庆大学,2004:60-63.
[4]常磊.结构地震能量反应分析及其在超高层巨型框架结构中的应用研究[D].合肥:合肥工业大学,2011:15-95.
[5]中国建筑科技标准设计研究院.SAP 2000中文版使用指南[M].北京:人民交通出版社,2008:464-479.
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