隔震结构静力弹塑性分析
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摘要
以一栋4层钢筋混凝土框架隔震结构为例,采用两种方法进行pushover分析。对上部结构进行推覆分析得到上部结构的能力谱,通过折减系数得到上部结构的需求谱,进而可以得到上部结构的性能参数。对隔震结构直接进行pushover分析,得到隔震结构在罕遇地震作用下的性能参数。两种方法得到的结果接近。pushover分析隔震结构的抗震性能,在工程实践中具有一定的参考价值。
Based on a four layers of reinforced concrete frame base-isolated structures,two kinds of pushover analysis methods were used.The ability spectrum of upper structure was got through pushover analysis of upper structure.Through the reduction factor,the demand spectrum of upper structure and the upper structure performance parameters could be got.The performance parameters of the base-isolated structures under severe earthquake were obtained directly by pushover analysis.Two methods get similar results.Pushover analysis of the seismic-isolation structure anti-earthquake performance has certain reference value in engineering.
Based on a four layers of reinforced concrete frame base-isolated structures,two kinds of pushover analysis methods were used.The ability spectrum of upper structure was got through pushover analysis of upper structure.Through the reduction factor,the demand spectrum of upper structure and the upper structure performance parameters could be got.The performance parameters of the base-isolated structures under severe earthquake were obtained directly by pushover analysis.Two methods get similar results.Pushover analysis of the seismic-isolation structure anti-earthquake performance has certain reference value in engineering.
引文
[1]崔京浩.基础隔震结构设计及施工指南[M].北京:中国水利水电出版社,2007.
[2]李宏男,霍林生.多维结构减震控制[M].北京:科学出版社,2008.
[3]冷谦,于建华.Push-over方法在隔震结构中的应用[J].四川大学学报,2002,34(3):34-37.
[4]HWANG J S,CHANG K C,TSAI M H,等.隔震规则桥梁的组合阻尼比[J].世界地震工程,1997,13(3):80-88.
[5]赵玉成.基于性能的隔震加固实用设计方法研究[D].北京:北京工业大学,2007.
[6]Federal Emergency Management Agency(FEMA).Prestandardand commentary for the seismic rehabilitation of buildings[R].FEMA Report 356,2000.
[7]Federal Emergency Management Agency(FEMA).Improvementof nonlinear static seismic analysis procedures[R].FEMA Report 440,2005.
[2]李宏男,霍林生.多维结构减震控制[M].北京:科学出版社,2008.
[3]冷谦,于建华.Push-over方法在隔震结构中的应用[J].四川大学学报,2002,34(3):34-37.
[4]HWANG J S,CHANG K C,TSAI M H,等.隔震规则桥梁的组合阻尼比[J].世界地震工程,1997,13(3):80-88.
[5]赵玉成.基于性能的隔震加固实用设计方法研究[D].北京:北京工业大学,2007.
[6]Federal Emergency Management Agency(FEMA).Prestandardand commentary for the seismic rehabilitation of buildings[R].FEMA Report 356,2000.
[7]Federal Emergency Management Agency(FEMA).Improvementof nonlinear static seismic analysis procedures[R].FEMA Report 440,2005.