基于薄层分析的反应位移法研究
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摘要
介绍薄层单元分析法结合容积法求解半无限空间层状地层中地下结构水平、回转、垂直及轴向的地层阻抗函数过程,并将地层阻抗函数运用到地下结构抗震设计方法-反应位移法中,综合考虑地下结构水平、回转、垂直运动特性,较大程度上提高了反应位移法的计算精度.在北京地区典型地质条件下的典型地铁车站结构模型振动台试验的基础上,进行一般反应位移法及基于薄层分析的反应位移法的计算分析,并将其内力及变形值与一般反应位移法及振动台试验结果进行比对.结果表明,该方法与地铁车站结构振动台的试验结果符合良好,验证了这种基于薄层分析的反应位移法的适用性.
This paper introduces the calculation procedure of impedance function of stratified soil with underground structures through thin layer method(TLM) combining flexible volume method,which is applied to displacement response method.Horizontal,vertical and rotating motion characteristics are considered,and its calculation accuracy is improved significantly.Based on the shaking table test of typical subway station in Beijing,general displacement response method and displacement response method based on TLM are used to analyze the stress and deformation of the subway station.Then,the stress and deformation values of the subway station calculated by general displacement response method and displacement response method based on TLM are compared with those of shaking table tests.Results show that displacement response method based on TLM agrees well with the shaking table test of subway station,and its applicability can be verified.
This paper introduces the calculation procedure of impedance function of stratified soil with underground structures through thin layer method(TLM) combining flexible volume method,which is applied to displacement response method.Horizontal,vertical and rotating motion characteristics are considered,and its calculation accuracy is improved significantly.Based on the shaking table test of typical subway station in Beijing,general displacement response method and displacement response method based on TLM are used to analyze the stress and deformation of the subway station.Then,the stress and deformation values of the subway station calculated by general displacement response method and displacement response method based on TLM are compared with those of shaking table tests.Results show that displacement response method based on TLM agrees well with the shaking table test of subway station,and its applicability can be verified.
引文
[1]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):49-57.LIU Jing-bo,LI Bin.Issues on the seismic analysis and design of subway structures[J].China Civil Engineering Journal,2006,39(6):49-57.(in Chinese)
[2]刘晶波,王文晖,赵冬冬.地下结构横截面抗震设计分析方法综述[J].施工技术,2010,39(6):91-95.LIU Jing-bo,WANG Wen-hui,ZHAO Dong-dong.Review of methods for seismic design and analysis of underground structure cross-section[J].Construction Technology,2010,39(6):91-95.(in Chinese)
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[6]刘晶波,刘祥庆,薛颖亮.地下结构抗震分析与设计的Pushover方法适用性研究[J].工程力学,2009,26(1):49-57.LIU Jing-bo,LIU Xiang-qing,XUE Ying-liang.Study on applicability of a Pushover analysis method for seismic analysis and design of underground structures[J].Engineering Mechanics,2009,26(1):49-57.(in Chinese)
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[11]边金,陶连金,张印涛.地下结构抗震设计方法的比较与分析[J].现在隧道技术,2008,45(6):50-55.BIAN Jin,TAO Lian-jin,ZHANG Yin-tao.Comparison and analysis of the aseismic design methods for underground structures[J].Modern Tunnelling Technology,2008,45(6):50-55.(in Chinese)
[12]陶连金,王沛霖,边金.典型地铁车站结构振动台模型试验[J].北京工业大学学报,2006,32(9):798-801.TAO Lian-jin,WANG Pei-lin,BIAN Jin.A shaking table test method on the representative subway station structure[J].Journal of Beijing University of Technology,2006,32(9):798-801.(in Chinese)
[13]边金,陶连金,王文沛,等.地震作用下地铁车站结构的动力变形响应研究[J].防灾减灾工程学报,2010,30(4):393-397.BIAN Jin,TAO Lian-jin,WANG Wen-pei,et al.Research on dynamic deformation responses of subway station structure during an earthquake[J].Journal of Disaster Prevention and Mitigation Engineering,2010,30(4):393-397.(in Chinese)
[2]刘晶波,王文晖,赵冬冬.地下结构横截面抗震设计分析方法综述[J].施工技术,2010,39(6):91-95.LIU Jing-bo,WANG Wen-hui,ZHAO Dong-dong.Review of methods for seismic design and analysis of underground structure cross-section[J].Construction Technology,2010,39(6):91-95.(in Chinese)
[3]卢志杰.隧道受震反应分析之研究[D].台湾:国立中央大学土木工程学院,2009.LU Zhi-jie.Study on seismic response analysis of tunnel[D].Taiwan:College of Civil Engineering,National Central University,2009.(in Chinese)
[4]黄先锋.地下结构的抗震计算-位移响应法[J].铁道建筑,1999(6):3-6 HUANG Xian-feng.Seismic calculation of underground structure,the displacement response method[J].Railway Engineering,1999(6):3-6.(in Chinese)
[5]刘如山,胡少卿,石宏彬.地下结构抗震计算中拟静力法的地震荷载施加方法研究[J].岩土工程学报,2007,29(2):237-242.LIU Ru-shan,HU Shao-qing,SHI Hong-bin.Study on seismic loading of pseudo-static approach used in the seismic design of underground structure[J].Chinese Journal of Geotechnical Engineering,2007,29(2):237-242.(in Chinese)
[6]刘晶波,刘祥庆,薛颖亮.地下结构抗震分析与设计的Pushover方法适用性研究[J].工程力学,2009,26(1):49-57.LIU Jing-bo,LIU Xiang-qing,XUE Ying-liang.Study on applicability of a Pushover analysis method for seismic analysis and design of underground structures[J].Engineering Mechanics,2009,26(1):49-57.(in Chinese)
[7]中华人民共和国住房和城市建设部.城市轨道交通结构抗震设计规范(征求意见稿—2011)[S].北京:中华人民共和国住房和城乡建设部,2011.
[8]陈国兴,左熹.土-地下结构体系地震反应的简化分析方法[J].岩土力学,2010,31(增1):1-7.CHEN Guo-xing,ZUO Xi.A simplified method of seismic response analysis of soil-underground structure system[J].Chinese Journal of Rock and Soil Mechanics,2010,31(supp1):1-7.(in Chinese)
[9]蒋通,宋晓星.用薄层法分析层状地层条形基础的阻抗函数[J].力学季刊,2009,30(1):62-70.JIANG Tong,SONG Xiao-xing.Analysis of impedance functions of strip foundations embedded in stratified soils by using thin layer method[J].Chinese Quarterly of Mechanics,2009,30(1):62-70.(in Chinese)
[10]蒋通,宋晓星.层状地层中埋管地基阻抗函数的分析方法[J].力学季刊,2009,30(2):243-249.JIANG Tong,SONG Xiao-xing.Analysis of impedancefunction of stratified soil with underground tunnel[J].Chinese Quarterly of Mechanics,2009,30(2):243-249.(in Chinese)
[11]边金,陶连金,张印涛.地下结构抗震设计方法的比较与分析[J].现在隧道技术,2008,45(6):50-55.BIAN Jin,TAO Lian-jin,ZHANG Yin-tao.Comparison and analysis of the aseismic design methods for underground structures[J].Modern Tunnelling Technology,2008,45(6):50-55.(in Chinese)
[12]陶连金,王沛霖,边金.典型地铁车站结构振动台模型试验[J].北京工业大学学报,2006,32(9):798-801.TAO Lian-jin,WANG Pei-lin,BIAN Jin.A shaking table test method on the representative subway station structure[J].Journal of Beijing University of Technology,2006,32(9):798-801.(in Chinese)
[13]边金,陶连金,王文沛,等.地震作用下地铁车站结构的动力变形响应研究[J].防灾减灾工程学报,2010,30(4):393-397.BIAN Jin,TAO Lian-jin,WANG Wen-pei,et al.Research on dynamic deformation responses of subway station structure during an earthquake[J].Journal of Disaster Prevention and Mitigation Engineering,2010,30(4):393-397.(in Chinese)
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