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ID:36574333
大小:2.72 MB
页数:90页
时间:2019-05-12
《连续刚构车桥耦合动力行为研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、东南大学硕士学位论文连续刚构车桥耦合动力行为研究姓名:方圆申请学位级别:硕士专业:桥梁与隧道工程指导教师:惠卓20070526奎堕盔兰堡主兰些丝奎ABSTRACTWithitscomprehensiveadvantagessuchasthelargetransportcapacity,speedine∞,loweDer斟consumption,lightpollution,lessoccupationoftheland,highsafetyandcomfortperformance,light-railwayhasbeendevelo
2、pedrapidlyallovertheworld.Underthedevelopmentofcitilizationandthebuildingtechnique,Chinahasalsoputintotheconstructionoflight-railway.ThetrainrunningOilabridgemaycoursethevibrationofthebridgeandvibrationofthebridgemayaffectthemarringofthetrain,whichwillraisetheproblemoft
3、hecoupledvibrationoftrain-bridgesystem.WithincreasingofspiedoftrainsandHghmlilagofbridgestructures,thecorrespondingproblemslikethesafetyandcomfortofthenmninguain,thereliabilityofwaeksandbridesareevenmoreconspicuous,andtheseproblemsstilllack∞oughtheoreticalresearchandeng
4、ineermgpracticeinChina,Therefore,theStody011thedynamicinteractionbeth/contrains,tracksunderthefastandhighrspcedrunningtrainisodeofthebasicresearchmeettheneedofachievinggreat-leap-forwarddevelopmentoflighi-railwayinChina.Firstofall,thepresentstatusOnthesKldiesofthecouple
5、dvibrationoftram-bridgesystemisoverviewedfromtheaspectt$ofanalyticalmodels,excitingSOUTCeSandarithmetic,andtheperspectivesabouttheresearchinthisfieldisalsoindicated.Takethethree-spancontinuousrigid-framedprestressedcoflC'getebridgesinGuangzhouasresearchobjects.aspatialm
6、odelaboutthecoupledvibrationbetw啪thetrainandthebridgeisbuiltbymeaBSofMSC-DYTRANprogram.Inallusiontothetypicalthree-spanContinuousrigid—flamedbridgewitheachspanof36n阻rulesofspatialdynamicresponsesisanalyzedbasedOnthedynamicmodelofcoupledvehicle-bridgesystem.Diversificati
7、onrulesofimpactfactoraRsummarizedbyanalyzingalargequantityofsll-uctureparametersintheresearchofverticald3mrniceffectsofstructure.Diversificationrulesofvehicleverticalaccelerationa”analyzedduetothechangeofstructureparametersandvehiclemovingspeedatthesametime.Theinfluence
8、ofpierlateralrigiditytothemaxtmumlateraldisplacementofpiertopandmiddieofthespansisamlyzedintheresearchofstruct
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