反应位移法在地铁车站抗震计算中的应用探讨
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摘要
针对我国目前地铁车站抗震计算的现状,介绍反应位移法在地铁车站抗震计算中的基本原理。结合常州地铁1号线定安路站工程实例,通过利用EERA软件对地层位移及剪应力的计算,考虑地层与车站结构间的相互作用,提供一种与实际更为接近的计算方法,减少计算过程中参数间的相互转化,便于工程实际应用。计算结果表明,车站层间位移能满足规范限值的要求,结构受力合理,结构尺寸满足要求,计算结果可靠。
Based on generalization of the existing seismic calculation methods for subway station,the fundamentals of response displacement method are introduced. Meanwhile,the displacement response method is discussed in combination with Ding Anlu subway station of the Changzhou subway line 1. The displacement and shear stress are calculated through EERA software,the interaction between soil layer and subway station is addressed,a method even closer to the practical engineering is provided,and thetransformation of parameters are reduced in the process of calculation. Calculation results show that the relative displacement can meet the requirement of the standards,the structure system is reasonable in terms of stresses,the structure size is appropriate,and the calculation results are reliable.
Based on generalization of the existing seismic calculation methods for subway station,the fundamentals of response displacement method are introduced. Meanwhile,the displacement response method is discussed in combination with Ding Anlu subway station of the Changzhou subway line 1. The displacement and shear stress are calculated through EERA software,the interaction between soil layer and subway station is addressed,a method even closer to the practical engineering is provided,and thetransformation of parameters are reduced in the process of calculation. Calculation results show that the relative displacement can meet the requirement of the standards,the structure system is reasonable in terms of stresses,the structure size is appropriate,and the calculation results are reliable.
引文
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[7]王博.明挖地铁车站整体建模结构受力分析[J].铁道标准设计,2012(11):75-88.
[8]曾祥会.某地铁车站不规则基坑的三维有限元分析[J].铁道标准设计,2012(1):62-69.
[9]刘晶波,李彬.地铁地下结构抗震分析及设计中的几个关键问题[J].土木工程学报,2006,39(6):106-110.
[10]刘晶波,李彬,刘祥庆.地下结构抗震设计中的静力弹塑性分析方法[J].土木工程学报,2007,40(7):68-75.
[11]施仲衡.地下铁道设计与施工[M].西安:陕西科学技术出版社,2006.
[12]边金,陶连金,张印涛,等.地下结构抗震设计方法的比较与分析[J].现代隧道技术,2008,45(6):51-54.
[13]杨林德.隧道与地下空间抗震防灾的若干思考[J].隧道建设,2013,33(9):707-714.
[2]Kanayasu S,Kubota I,Shikibu N.Stability of face during shield tunneling-A survey of Japanese shield tunneling[M].Rotterdam,Balkema Press,Underground Construction in Soft Ground,1995:319-322.
[3]同济大学,天津市地下铁道集团有限公司.城市轨道交通结构抗震设计规范(报批稿)[S].2010.
[4]禹海涛,袁勇,张中杰,等.反应位移法在复杂地下结构抗震中的应用[J].地下空间与工程学报,2011(5):857-862.
[5]江苏省地震工程研究院.常州市轨道交通1号线工程场地地震安全性评价报告[R].南京:江苏省地震工程研究院,2013.
[6]张鹏,刘春阳,张继清.北京地铁车站结构抗震分析[J].铁道标准设计,2014,58(1):97-101.
[7]王博.明挖地铁车站整体建模结构受力分析[J].铁道标准设计,2012(11):75-88.
[8]曾祥会.某地铁车站不规则基坑的三维有限元分析[J].铁道标准设计,2012(1):62-69.
[9]刘晶波,李彬.地铁地下结构抗震分析及设计中的几个关键问题[J].土木工程学报,2006,39(6):106-110.
[10]刘晶波,李彬,刘祥庆.地下结构抗震设计中的静力弹塑性分析方法[J].土木工程学报,2007,40(7):68-75.
[11]施仲衡.地下铁道设计与施工[M].西安:陕西科学技术出版社,2006.
[12]边金,陶连金,张印涛,等.地下结构抗震设计方法的比较与分析[J].现代隧道技术,2008,45(6):51-54.
[13]杨林德.隧道与地下空间抗震防灾的若干思考[J].隧道建设,2013,33(9):707-714.
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