地震一致激励计算方法的比较与分析
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摘要
首先介绍用于结构响应分析的两种输入模型,系统总结了用于地震激励分析的几种计算方法的优缺点、误差来源以及改进方法;在此基础上,以北盘江大桥为例,验证加速度输入、大质量法(LMM)和大刚度法(LSM)在一致激励分析中的一致性和可靠性,并总结各种方法的适用范围.算例结果表明:一致激励分析时,相对于LSM,LMM与直接加速度输入结果更为一致,具有更高可靠性.
This paper introduces the two input models of structural response analysis and summarizes the advantages and disadvantages of several calculation methods used for seismic excitation analysis,sources of errors,as well as improved methods.On the basis,the Beipanjiang bridge,for example,is used to verify the consistency and reliability of the acceleration input,large mass method(LMM) and large stiffness method(LSM) in the analysis of uniform excitation,and we also summarizes the scope of the application of the various methods.The numerical result of the example shows that the outcome of LMM is more consistent with the direct acceleration input,with higher reliability relative to the LSM.
This paper introduces the two input models of structural response analysis and summarizes the advantages and disadvantages of several calculation methods used for seismic excitation analysis,sources of errors,as well as improved methods.On the basis,the Beipanjiang bridge,for example,is used to verify the consistency and reliability of the acceleration input,large mass method(LMM) and large stiffness method(LSM) in the analysis of uniform excitation,and we also summarizes the scope of the application of the various methods.The numerical result of the example shows that the outcome of LMM is more consistent with the direct acceleration input,with higher reliability relative to the LSM.
引文
[1]柳国环,李宏男,林海.结构地震响应计算模型的比较与分析[J].工程力学,2009,26(2):10-15.
[2]Wilson E L.Three-dimensional static and dynamic analysis of structures[M].Berkley:Computer and Structures,2002.
[3]柯世堂,张令心,李永强.基于位移荷载输入动力时程分析法的误差分析[J].山东理工大学学报,2009,23(5):5-8.
[4]周国良,李小军.用改进的大质量法分析行波效应对连续刚构桥地震反应的影响[J].土木工程与环境工程,2010,32(2):217-220.
[5]王波,张海龙.基于大质量法的高墩大跨连续刚构桥地震时程反应分析[J].桥梁建设,2006(5):17-20.
[6]周国良,李小军,刘必灯.大刚度法在结构动力分析中的应用、误差分析与改进[J].工程力学,2011,28(8):30-36.
[7]Liao S,Zerva A.Physically compliant,conditionally simulated spatially variable seismic ground motions for performance-baseddesign[J].Earthquake Engineering and Structural Dynamics,2006,35:891-919.
[8]陈文辉,罗永峰.地震激励输入方法对结构弹性响应的影响[C]//刘锡良.第九届全国现代结构工程学术研讨会.北京:工业建筑出版社,2009:439-448.
[2]Wilson E L.Three-dimensional static and dynamic analysis of structures[M].Berkley:Computer and Structures,2002.
[3]柯世堂,张令心,李永强.基于位移荷载输入动力时程分析法的误差分析[J].山东理工大学学报,2009,23(5):5-8.
[4]周国良,李小军.用改进的大质量法分析行波效应对连续刚构桥地震反应的影响[J].土木工程与环境工程,2010,32(2):217-220.
[5]王波,张海龙.基于大质量法的高墩大跨连续刚构桥地震时程反应分析[J].桥梁建设,2006(5):17-20.
[6]周国良,李小军,刘必灯.大刚度法在结构动力分析中的应用、误差分析与改进[J].工程力学,2011,28(8):30-36.
[7]Liao S,Zerva A.Physically compliant,conditionally simulated spatially variable seismic ground motions for performance-baseddesign[J].Earthquake Engineering and Structural Dynamics,2006,35:891-919.
[8]陈文辉,罗永峰.地震激励输入方法对结构弹性响应的影响[C]//刘锡良.第九届全国现代结构工程学术研讨会.北京:工业建筑出版社,2009:439-448.
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