大跨度连续刚构桥施工监控及温度效应分析

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1、北京交通大学硕士学位论文大跨度连续刚构桥施工监控及温度效应分析姓名：闫燕红申请学位级别：硕士专业：桥梁与隧道工程指导教师：雷俊卿20080601ABSTRACTABSTRACT：Withthedevelopmentofbridgeengineeringconstructionandtheimprovementofprestressedtechnology,moreandmorelarge。spanprestressedconcretecontinuousrigidframebridgearebuilt．Tokeeptheaccor

2、danceofalignmentofbuiltbridgeswiththeexpectationandtoinsurethesafetyofbridgesinconstruction，theconstructioncontroliSpaidmoreandmoreattention．Inthedissertation，byengineeringpracticeassistedwiththeoryanalysis，onthebasicoftheconstructionofTianluoBridgeofWenZhou．FuZhouRai

3、lwayPassengerDedicatedLine，theapplicationof“AdaptiveControl’’inconstructioncontroloflongspanprestressedconcretecontinuousrigidframebridgeisdiscussed．AtthesalTletime，thekeyparametersofconstructionprocessofanover-linecontinuouscantileverbeambridgeareanalyzedthroughthefi

4、niteelementsoftware．Throughtheprocessoftheanalysis，theeffectoftheparameterstotheconstructisproved．Accordingtotheanalysisofparameters，wecanfindthebasisforadjustingtheparameters．Inthedissertation，inordertoreceivethetemperaturerangeandthechanceofclosureforlargespanbridge

5、s，theinfluenceofsunlightisdiscussed．Mainresearchworksofthisdissertationareincludedbelow：11MakeareviewofthedevelopmentandstudyaboutLarge-spanPCcontinuousri西dframebridgesinChinaandabroadandmethodofconstructioncontr01．2)Thetheoryandsystemofconstructioncontrolaregivenarev

6、iewandthemethodofdeflectionanalysisandadjustmentisraisedbasedonthe‘‘AdaptiveControl’’theory．3)OnthebasicoftheconstructionofTianluoBridgeofWenZhou—FuZhouRailwayPassengerDedicatedLine，withtheFEM，factorswhichinfluencethealignmentcontrolandstressesofPCcantileverbridges，su

7、chasdensityofconcrete，elasticmodulusofconcrete，temperature，areanalyzed．钔IntroducetheimplementationoftheTianluoBridge’Sconstructioncontr01．Inordertoobtainthechangesofstress，concretestrainmetersareburiedinthebeam；atthesabletime，measuringpointofelevationareburiedonthebea

8、mtoobtainthechangevaluesofelevation．510ntllebasicoftheconstructionofTianluoBridge，inordertofindthetemperaturerangeandthechan