氯離子作用下鋼—混凝土組合梁的耐久性研究.pdf

1、中南大學(xué)碩士學(xué)位論文氯離子作用下鋼—混凝土組合梁的耐久性研究姓名：龔匡暉申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：余志武20090501ABSTRACTSteelconcretecompositebeamhastheadvantagesofbothsteelstructureandconcretestructure，anditwouldhasvastapplicationprospectHoweverweemphasizethesecu

2、rityandapplicabilitybutignorethedurabilityofstructureinstructuredesignAndthiswouldmakethestructurefailurebeforeitsservicedeadline，andleadtoagrateeconomiclOSSThisarticleaimattheproblemsinstudyingthesteel。concretecomposite

3、beam，studythedeteriorationlawanddamagemechanismbyquickelectrochemicalcorrosionexperimentinchloridecaseThemaincontentsinclude：(1)Thisarticleaimatthreekindssectionformofthesteelconcretecompositebeam，studytheroutethroughwhi

4、chchlorideionsintothesteel。concretecompositebeambyquickelectrochemicalcorrosionexperiment，andprovideexperimentbackgroundforthestudyofdurabilityofsteelconcretecompositebeam(2)Comparetheeffectsonpush—outspecimensperformanc

5、eofbolts，corrosionandsteelbeam’ScorrosionbyquickelectrochemicalcorrosionexperimentStudythevariationruleoftensionandshearperformanceoftheblotafterits’corrosionGetthedepressedcoefficientofthecorrodedboltbyfitting，provideba

6、seforthestudyingdurabilityofsteelconcretecompositebeam(3)Comparetheeffectsonsteel—concretecompositebeamofbolts，corrosionandsteelbeam’scorrosionbyquickelectrochemicalcorrosionexperimentStudythevariationruleofmechanicalpro

7、pertyofsteel—concretecompositebeamoftheblotafterits’corrosionGettheformulaoftheultimatebearingcapacityofpartialshearconnectionsteel’concretecompositebeam，andcomparethecalculationresultandexperimentresult，verifythePractic