地铁结构地震横向应变传递简化计算方法
|
摘要
提出了以横向应变传递率STC模型为基本出发点的地铁结构横向应变传递简化计算方法。以拟静力方法为基本出发点,以提出的土层横向应变率简化计算公式和常规一维土层分析为基础,给出了计算矩形地下结构地震响应简化计算方法,采用实例验证了方法的可靠性和可行性。结果表明,STC简化方法的结果能合理解释神户车站严重破坏的现象,与他人有限元计算的附加弯矩和剪力值分布趋势基本一致,与他人有限元计算得到的结构最大地震动力反应出现部位一致,定量结果的差别也在工程许可范围内。
A simplified method for calculating the lateral-strain-transform of subway structures based on strain transform coefficient(STC) model is proposed herein.Beginning with a pseudo-static method and based on the simplified calculation formula for lateral strain transform and one dimensional soil response analysis,the simplified method for seismic response of rectangular underground structures is presented.The reliability and feasibility of the method is validated by a real case.The results show that the STC simplified method can reasonably explain the serious damage of Dakai subway station caused by earthquake happened in 1995 Kobe of Japan.The additional moment and shear distribution are consistent by using finite element method and the simplified method.The maximum seismic dynamic response of the structures by the simplified method is consistent with the finite element method,and the quantitative deviation of which is acceptable in engineering practice.
A simplified method for calculating the lateral-strain-transform of subway structures based on strain transform coefficient(STC) model is proposed herein.Beginning with a pseudo-static method and based on the simplified calculation formula for lateral strain transform and one dimensional soil response analysis,the simplified method for seismic response of rectangular underground structures is presented.The reliability and feasibility of the method is validated by a real case.The results show that the STC simplified method can reasonably explain the serious damage of Dakai subway station caused by earthquake happened in 1995 Kobe of Japan.The additional moment and shear distribution are consistent by using finite element method and the simplified method.The maximum seismic dynamic response of the structures by the simplified method is consistent with the finite element method,and the quantitative deviation of which is acceptable in engineering practice.
引文
[1]于翔,陈启亮,赵跃堂,等.地下结构抗震研究方法及其现状[J].解放军理工大学学报,2000,10(1):63-69.
[2]张建民,张嘎.地铁地下结构与土体系统震动响应的分析理论与方法[C]∥第七届全国土动力学学术会议论文集,2006.
[3]孙超,薄景山,齐文浩,等.地下结构抗震研究现状及展望[J].世界地震工程,2009,25(2):94-99.
[4]张建毅,袁晓铭,孙锐,等.地下结构地震横向应变传递及其影响因素[J].自然灾害学报,2010,19(2):161-168.
[5]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,2007,23(4):221-226.
[6]袁晓铭,孙锐,孙静,等.常规土类动剪切模量比和阻尼比试验研究[J].地震工程与工程振动,2000,20(4):133-139.
[7]刘颖,谢君斐,石兆吉,等.砂土震动液化[M].北京:地震出版社,1984.
[8]李围.ANSYS土木工程应用实例(第二版)[M].北京:中国水利水电出版社,2007.
[9]杨柏坡,廖振鹏.结构-土相互作用有限元解法及改造通用程序的初步结果[J].地震工程与工程振动,1986,6(4):10-20.
[10]丁海平,廖振鹏,周正华.土-结构相互作用通用程序的改进[J].地震工程与工程振动,1999,19(2):51-55.
[11]马硕,罗奇峰,刘晶波.神户大开地铁车站的地震反应分析[R].清华大学结构工程与振动研究报告集,2003:63-87.
[12]张建毅,地震作用下地下结构横向应变传递研究[D].哈尔滨:中国地震局工程力学研究所,2007.
[2]张建民,张嘎.地铁地下结构与土体系统震动响应的分析理论与方法[C]∥第七届全国土动力学学术会议论文集,2006.
[3]孙超,薄景山,齐文浩,等.地下结构抗震研究现状及展望[J].世界地震工程,2009,25(2):94-99.
[4]张建毅,袁晓铭,孙锐,等.地下结构地震横向应变传递及其影响因素[J].自然灾害学报,2010,19(2):161-168.
[5]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,2007,23(4):221-226.
[6]袁晓铭,孙锐,孙静,等.常规土类动剪切模量比和阻尼比试验研究[J].地震工程与工程振动,2000,20(4):133-139.
[7]刘颖,谢君斐,石兆吉,等.砂土震动液化[M].北京:地震出版社,1984.
[8]李围.ANSYS土木工程应用实例(第二版)[M].北京:中国水利水电出版社,2007.
[9]杨柏坡,廖振鹏.结构-土相互作用有限元解法及改造通用程序的初步结果[J].地震工程与工程振动,1986,6(4):10-20.
[10]丁海平,廖振鹏,周正华.土-结构相互作用通用程序的改进[J].地震工程与工程振动,1999,19(2):51-55.
[11]马硕,罗奇峰,刘晶波.神户大开地铁车站的地震反应分析[R].清华大学结构工程与振动研究报告集,2003:63-87.
[12]张建毅,地震作用下地下结构横向应变传递研究[D].哈尔滨:中国地震局工程力学研究所,2007.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心