高强补偿收缩砼在桥面现浇湿接缝中的试验研究

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1、重庆交通大学硕士学位论文高强补偿收缩砼在桥面现浇湿接缝中的试验研究姓名：王瑜申请学位级别：硕士专业：桥梁与隧道工程指导教师：涂凌;周水兴20080401ABSTRACTThepressureonthehigh-strengthconcretecomponentssign_ificanteehnicalandeconomicbenefits，notonlytoreduceitscomponentsectionstoreducetheamo咖ofC0ncrete'butalsoreducecosts．Densificationofhigh-strengthconcret

2、e，impermeabilityandantifreezewerehigiaerthanthoseofordinaryconcrete，inacorI．osiveeIlviroIl】meIlt．vulnerabletothedamagedstructure，inparticularinfrastructureproject，theuseofhigh’strengthconcretestructure．Totheadvantagesofhigh-strengthconcretehasbeenwidelyrecognizedandhasbeenintheindustri

3、alandcivilconstruction,roadaIldbridgeconstructionprojectsintheuniversalapplication,itisthe21stcenturychoiceofmat甜alS．ThispaperreliesontheChongqingMunicipaltraffictechnologyprojects”、析thlarge。spanbeambridgewidecable—stayedbddgedesignandcons加ctionoftheresearchofkeytechnologies”inthesubje

4、ctof”C60precastconcreteandcast．in-placeconcreteexpansionofthepilotstudyofthesite”，inviewofcast．in-placebridgeGaoQiangcompensationcontractionjointswetconcrete，inprecastconcretebridgedecksshrinkage，creeptest，wetlandscompensationcontractionjointsoftheconcretemixh鹏ratlotestsegmentprototype

5、testandnumericalanalysis，obtainedthefollowingfindings：PrecastconcretebridgedecksC60shrinkage,creep—timecurveforthecast—in-placewetjointdeformationinthereferencebasisfor廿1ecast-in-placeconcreteshrinkagecompensationwetjointswithareasonableratiooftheprototypetestsectionofconc“托eshrinkagec

6、ompensationWiththestressandstrainoftheagecurveobservediIlsummingupbothathomeandabroadcast—in-placeconcreteconstructionjointsandtlleSuccessorfailureofconservationonthebasisofexperience，putforwardconcretebridgededcandjointmeasurestoguaranteetheconstructionofestablishingnumericalmodelanal

7、ysis，andcalculationresultsFestivalcomparisonoftheprototypetestresuItsareVe巧goodfit．Inaddition,throughlong—termobservationintheprototypespecimenmwetconcreteexpansionjoints，aswellaschangesinthecracksinthesurfaceconditions，thattheexpansiondidnotappearnormalconcreteworkdes缸uctivecr2lcks．