194·2023年4月江西建材工程技术与应用地下两层双岛四线车站抗震数值模拟分析邱土兴中国电建集团华东勘测设计研究院有限公司，浙江杭州311122摘要：文中应用迈达斯（MidasGTSNX）软件进行三维有限元数值模拟计算，根据某车站工程地质和设计资料，建立了三维有限元计算模型，对比分析了非上盖物业区和上盖物业区车站主体结构在地震作用下的层间位移差值及结构水平位移变化规律。结果表明，结构在受到水平地震荷载的作用后，地铁车站上盖高层的水平位移最大值为77mm，层间位移最大差值约为5mm，层高约为3900mm；而地铁车站的主体结构层间位移最大差值约为0.0478mm，层高约为6250mm；非上盖物业区地铁车站主体结构的层间最大位移差值约为0.00083mm，层高约为6600mm，满足规范当中的弹性层间位移限值。关键词：地铁车站；双岛四线；抗震分析；数值模拟中图分类号：TU921;TU352.11文献标识码：B文章编号：1006-2890（2023）04-0194-03SeismicNumericalSimulationAnalysisofUndergroundTwo-storyShuangdaoFourth-lineStationQiuTuxingChinaPowerConstructionGroupEastChinaSurvey,DesignandResearchInstituteCo.Ltd.,Hangzhou,Zhejiang311122Abstract:Inthispaper,three-dimensionalfiniteelementnumericalsimulationcalculationiscarriedoutbyusingMidasGTSNXsoftware,andaccordingtotheactualstratumandengineeringdesigndataofacertainstation,athree-dimensionalfiniteelementcalculationmodelisestablished,andthevariationrulesofinter-storydisplacementdifferenceandstructurehorizontaldisplacementofthemainstructureofthestationinthenon-superstructurepropertyareaandthesuperstructurepropertyareaunderearthquakearecomparedandanalyzed.Theresultsshowthatafterthestructureissubjectedtohorizontalseismicload,themaximumhorizontaldisplacementoftheupperfloorofthesubwaystationis77mm,themaximumdifferenceofinter-storydisplacementisabout5mm,andthestoryheightisabout3900mm.Themaximumdifferenceofinter-storydisplacementofthemainstructureofsubwaystationisabout0.0478mm,andtheheightofstoryisabout6250mm.Themaximuminter-storydisplacementdifferenceofthemainstructureofthesubwaystationinthenon-superimposedpropertyareaisabout0.00083mm,andthefloorheightisabout6600mm,whichmeetstheelasticinter-storydisplacement...
