基于Benchmark模型的基础隔震作用分析
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摘要
在第三代Benchmark问题的九层钢框架结构模型的基础上,利用ETABS有限元软件,建立了9层钢框架三维有限元模型。定义了用于模拟铅芯橡胶支座性能的连接属性,分别采用模态分析、反应谱分析和时程分析三种方法,比较了隔震结构和非隔震结构的地震反应。分析结果表明,隔震结构的地震反应与非隔震结构相比降低明显,隔震结构具有良好的隔震性能。
On the basis of a nine-story steel frame structure from the third generation benchmark problems,the three-dimensional finite element modal of nine-story steel frame structure is established by using ETABS finite element software.The connection properties is defined,in order to simulate lead rubber bearing' s performance,the earthquake response of isolation structure and non-isolation structure is compared by using modal analysis、response spectrum analysis and time-history analysis methods respectively.Analysis results show that the seismic response of base isolation structure is significantly lower than the non-isolation structure,the base isolation structure has good isolation performance.
On the basis of a nine-story steel frame structure from the third generation benchmark problems,the three-dimensional finite element modal of nine-story steel frame structure is established by using ETABS finite element software.The connection properties is defined,in order to simulate lead rubber bearing' s performance,the earthquake response of isolation structure and non-isolation structure is compared by using modal analysis、response spectrum analysis and time-history analysis methods respectively.Analysis results show that the seismic response of base isolation structure is significantly lower than the non-isolation structure,the base isolation structure has good isolation performance.
引文
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[6]邱法维,黄兴宏.基于Bouc-Wen的阻尼负载模拟器研制[J].液压与气动,2011,34(8):75-76
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[12]GB 50011-2010.建筑抗震设计规范[S].北京:中国建筑工业出版社,2010
[2]Bai H.Approach of some problems in elastic structure vibration control[D].Beijing:Peking University,1995
[3]周星德,姜冬菊.结构振动主动控制[M].北京:科学出版社,2009
[4]欧进萍.结构振动控制—主动、半主动和智能控制[M].北京:科学出版社,2003
[5]北京金土木软件技术有限公司,中国建筑标准设计研究院.ETABS中文版使用指南[M].北京:中国建筑工业出版社,2004
[6]邱法维,黄兴宏.基于Bouc-Wen的阻尼负载模拟器研制[J].液压与气动,2011,34(8):75-76
[7]周福霖.工程结构减震控制[M].武汉:地震出版社,1997
[8]Jangid R.S.Stochastic seismic response of structures isolated by rolling rods[J].Engineering Structures,2000,22(8):937-946
[9]樊剑,唐家祥.带限位装置的摩擦隔震结构动力特性及地震反应分析[J].建筑结构学报,2001,22(1):20-24
[10]阎维明,周福霖,谭平,等.土木工程结构振动控制的研究进展[J].世界地震工程,1997,13(2):8-20
[11]张德丰.MATLAB数值分析[M].北京:机械工业出版社,2012
[12]GB 50011-2010.建筑抗震设计规范[S].北京:中国建筑工业出版社,2010
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