灌浆套筒连接装配式混凝土桥墩振动台试验研究.docx

灌浆套筒连接装配式混凝土桥墩振动台试验研究
Title:ExperimentalStudyonVibrationTableTestingofGroutedSleeveConnectionAssemblyConcretePiers
Abstract:
Thisresearchaimstoinvestigatethebehaviorofgroutedsleeveconnectionassemblyconcretepiersusingavibrationtabletestingmethod.Thestudyconsistsofacomprehensiveexperimentalprogramthatincludesthedesignandfabricationoftestmodels,thetestingprocedure,andtheanalysisoftestresults.Theprimaryobjectivesoftheresearcharetoassessthedynamicperformanceandseismicbehaviorofgroutedsleeveconnectionassemblyconcretepiers.
Introduction:
Concretepiersareessentialcomponentsofbridges,providingsupportandstabilitytothesuperstructure.Traditionalconstructionmethodsforconnectingprecastconcretesegmentsinvolvetheuseofcast-in-placejoints,whichoftenexhibitlimiteddurabilityandseismicresistance.Inrecentyears,groutedsleeveconnectionassemblyhasemergedasapromisingalternativeforconnectingprecastelements,offeringimprovedperformanceintermsofstrength,stiffness,durability,andseismicresistance.However,thereisstillaneedforcomprehensiveexperimentalresearchtovalidatetheperformanceandbehavioroftheseconnectionsunderdynamicloading.
Methodology:
Theresearchconsistsofthreemainstages:thedesignandfabricationoftestmodels,thevibrationtabletesting,andtheanalysisoftestresults.Thedesignandfabricationstageinvolvethedevelopmentofscaled-downgeometricmodelsofgroutedsleeveconnectionassemblyconcretepiers.Allmodelswillbeaccuratelyscaled,consideringtherelevantmaterialpropertiesandgeometricproportions.Thevibrationtabletestingprocedureswillinvolvesubjectingthetestmodelstoaseriesofdynamicloadingscenariossimulatingseismicevents.Theanalysisoftestresultswillfocusonmeasuringandevaluatingthedynamicresponseofthepiers,includingdisplacement,acceleration,andstrainresponses.
ResultsandDiscussion:
Thetestresultsrevealedcrucialinsightsintothedynamicbehaviorofgroutedsleeveconnectionassemblyconcretepiers.Theanalysisofdisplacementandaccelerationresponseshighlightedtheeffectivenessofgroutedsleeveconnectionsinreducingthetransferofseismi