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基于干接缝单元的预制拼装桥墩抗震性能数值模拟.docx

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基于干接缝单元的预制拼装桥墩抗震性能数值模拟为题目，写不少于1200的论文 Abstract Theseismicperformanceofprefabricatedassembledbridgepiersbasedondryjointunitswasnumericallysimulatedinthisstudy.ThefiniteelementmodelwasestablishedusingANSYSsoftware,andtheseismicresponsecharacteristics,bearingcapacity,anddeformationcharacteristicsofthebridgepierswereanalyzedunderdifferentseismicwaveforms.Theresultsshowedthattheprefabricatedassembledbridgepiershadgoodseismicperformance,andthedryjointstructureeffectivelyreducedthedamagecausedbyearthquakes.Inthefuture,thedesignandproductionofprefabricatedassembledbridgepierswithdryjointunitsshouldbefurtheroptimizedtoenhanceitsseismicresistanceandpromoteitsapplicationintheengineeringfield. Keywords:Prefabricatedassembledbridgepiers,dryjointunit,seismicperformance,numericalsimulation Introduction Asoneoftheimportantinfrastructurefacilities,bridgesplaysavitalroleinconnectingdifferentregionsandpromotingregionaleconomicdevelopment.Withtherapiddevelopmentofsocietyandeconomy,thedemandforbridgeconstructionhasbeenincreasingyearbyyear.However,bridgesaresusceptibletomanynaturaldisasters,particularlyearthquakes,whichcancausesignificanteconomiclossesandcasualties.Therefore,itisparticularlyimportanttoensuretheseismicperformanceofbridges. Thetraditionalconstructionmethodofbridgepiersoftenresultsinlongconstructionperiods,highlaborcosts,andpoorseismicperformance.Theemergenceofprefabricatedassembledbridgepiersprovidesaneffectivesolutiontotheseproblems.Prefabricatedassembledbridgepierscombinetheadvantagesofprefabricationandassembly,andcanprovidefasterconstructiontimes,highersafety,andbetterseismicperformancecomparedtotraditionalbridgepiers. Asoneofthekeycomponentsoftheprefabricatedassembledbridgepiers,thedryjointunitplaysanimportantroleinensuringitsseismicperformance.Thedryjointstructurecaneffectivelyreducetheimpactofseismicwavesonthebridgepiersandgreatlyimproveitsseismicresistance.Therefore,itisessentialtostudytheseismicperformanceoftheprefabricatedassembledbridgepiersbasedonthedryjointunit