京沪高铁徐州东站旅客人行天桥振动研究

44120141BuildingStructureVol．44No．1Jan．2014121214300632100013。。。TU318.2A1002-848X201401-0053-05VibrationstudyofpassengerfootbridgeinXuzhouEastStationofBeijing-Shanghaihigh-speedrailwayYinGuogao1ZhangGaoming2LiJingxue1YanFeng21ChinaＲailwaySiyuanSurveyandDesignGroupCo．Ltd．Wuhan430063China2ChinaAcademyofBuildingＲesearchBeijing100013ChinaAbstractThevibrationandvibrationreductionmeasuresofpassengerfootbridgeinXuzhouEastStationofBeijing-Shanghaihigh-speedrailwaywerestudied．Throughcomparativeanalysisofthemeasuredandcalculatedresultstrainwindisthemainfactortocausethevibrationofpassengerfootbridge．Thevibrationresponseinthecaseoftrainspeedingupwasfurthercalculated．Toensurethesafetyandhumancomfortlevelofthebridgefeasiblevibrationreductionmeasureswereproposedandperformanceofmeasureswasanalyzed．Throughcalculationstheschemeofadditionalcolumnsanddampersthatthepassengerfootbridgeadoptedhasobviousdampingeffectsinmidspanregionsofmaingirderandfootbridge．Keywordspassengerfootbridgeinhigh-speedrailwaystationvib[e-mail]。0。、。11.1、、、、、11。、、、。941B1INV9500。250Hz。、。1.21.2.14.0Hz4.8Hz0.9%。1.2.21201416380A300km/h0.579m/s25s。0.019m/s2。5s。2。23430.050.945m/s2。240.1270.156m/s2。2。1.2.31。/m/s210.5790.0950.0140.3910.0490.0410.0240.9830.1270.0450.0050.1020.0160.0180.0070.1561.2.45。3.9Hz。36.943.547.166.9Hz。4.7Hz。4.0Hz1～2Hz3。22.112。2.2ANSYS、。。0.9%Ｒayleigh。64.0Hz7。2.3。80.052m/s2。2.445441．5678CFDComputationalFluidDynamics。2.4.1FLUENT645。。298。92。9FLUENT62ＲANSＲealiazableκ－ε、101325Pa、SIMPLE10－3。。2.4.210。。300km/h300Pa350km/h408Pa。300km/h0.651m/s2。102.5。。。5520145～10。33.1350km/h300km/h350km/h36%1.268m/s294%。。3.2《》GB50017—2003。3.3、。4Hz1m/s2。300km/h0.579m/s24Hz0.127m/s2。。350km/h1.268m/s2。44.1TMD、、。11。400×14。C7kN/mm/sα1.041kN±20mm。4.211。。12。。12350km/h3。。。/mm/s2312687455220110181862810665441．4。70%30%。4/mm/s2/mm/s2/%132094628104629272510.579m/s2。0.983m/s2。24Hz。35～10。。4《》GB50017—2003。5300km/h。350km/h。70%30%。6。。。1．J．1981231-15．2ALLENDEMUＲＲAYTM．DesigncriterionforvibrationsduetowalkingJ．EngineeringJournal1993304117-129．3．J．200425257-63．4．J．2010314521-527．5．J．201111245-51．151371、。2、、。3、。4。1．J．20124211-5．2．31mJ．20124296-9．75