不同土层地震反应计算程序对比分析
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摘要
目前在中、美两国场地土层地震反应分析中,应用比较广泛的计算软件为ESE和SHAKE,两者均采用频域等效线性化方法处理非线性的土层动本构关系。本文采用上述软件分别对三种典型场地进行计算,分析两者差别及造成差别的原因。研究结果表明,SHAKE软件在深软场地时,计算反应谱和加速度峰值均与实际统计结果差别较大,不适合工程应用。ESE软件计算结果比较合理。
At present,ESE and SHAKE procedure are widely used to seismic analysis for soil layers in China and the United States of America.These two procedures both use the one-dimension equivalent linear method to deal with the nonlinear soil dynamic constitutive relationship.In this paper,we calculated respectively three typical profiles though ESE procedure and SHAKE procedure.The result shows that SHAKE procedure can't get more reasonable PGA and response spectrum values when the soil profiles are deep or the input ground motions are strong.The ESE procedure can be used in engineering well.
At present,ESE and SHAKE procedure are widely used to seismic analysis for soil layers in China and the United States of America.These two procedures both use the one-dimension equivalent linear method to deal with the nonlinear soil dynamic constitutive relationship.In this paper,we calculated respectively three typical profiles though ESE procedure and SHAKE procedure.The result shows that SHAKE procedure can't get more reasonable PGA and response spectrum values when the soil profiles are deep or the input ground motions are strong.The ESE procedure can be used in engineering well.
引文
[1]胡聿贤.地震安全性评价技术教程[M].北京:地震出版社,1999:321-379.
[2]齐文浩,薄景山.土层地震反应等效线性化方法综述[J].世界地震工程,2007,3(4):221-226.
[3]陈学良.土体动力特性、复杂场地非线性地震反应及其方法研究[D].哈尔滨:中国地震局工程力学研究所,2006.
[4]陈学良,金星,陶夏新,等.土体动力一维非线性本构关系剖析与评价[J].地震工程与工程振动,2006,26(6):147-157.
[5]齐文浩,王振清,薄景山.土层非线性地震反应分析方法及其检验[J].哈尔滨工程大学学报,2010,31(4):444-450.
[6]廖振鹏,李小军.地震小区划—理论与实践[M].北京:地震出版社,1989:250-265.
[7]栾茂田,林皋.场地地震反应一维非线性计算模型[J].工程力学,1992,9(1):94-103.
[8]I.M IDRISS JOSEPHI.SUN.User’s manual for SHAKE91—A computer program for conducting equi-valent linear seismic response analyses of horizontallylayered soil deposits:Center for Geotechnical Model-ing Department of Civi&Environmental Engineering University of Califonia Davis,Califonia,August1992.
[9]J.P.Bardet,K,Ichii,and C.H.Lin.EERA—A com-puter program for equivalent-linear earthquake site response analyses,Department if civil engineering,University of southern Califonia,August2000.
[2]齐文浩,薄景山.土层地震反应等效线性化方法综述[J].世界地震工程,2007,3(4):221-226.
[3]陈学良.土体动力特性、复杂场地非线性地震反应及其方法研究[D].哈尔滨:中国地震局工程力学研究所,2006.
[4]陈学良,金星,陶夏新,等.土体动力一维非线性本构关系剖析与评价[J].地震工程与工程振动,2006,26(6):147-157.
[5]齐文浩,王振清,薄景山.土层非线性地震反应分析方法及其检验[J].哈尔滨工程大学学报,2010,31(4):444-450.
[6]廖振鹏,李小军.地震小区划—理论与实践[M].北京:地震出版社,1989:250-265.
[7]栾茂田,林皋.场地地震反应一维非线性计算模型[J].工程力学,1992,9(1):94-103.
[8]I.M IDRISS JOSEPHI.SUN.User’s manual for SHAKE91—A computer program for conducting equi-valent linear seismic response analyses of horizontallylayered soil deposits:Center for Geotechnical Model-ing Department of Civi&Environmental Engineering University of Califonia Davis,Califonia,August1992.
[9]J.P.Bardet,K,Ichii,and C.H.Lin.EERA—A com-puter program for equivalent-linear earthquake site response analyses,Department if civil engineering,University of southern Califonia,August2000.
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