預(yù)制混凝土框架結(jié)構(gòu)抗震性能與智能修復(fù)試驗(yàn)研究.pdf

1、同濟(jì)大學(xué)土木工程學(xué)院博士學(xué)位論文預(yù)制混凝土框架結(jié)構(gòu)抗震性能與智能修復(fù)試驗(yàn)研究姓名：劉振勇申請(qǐng)學(xué)位級(jí)別：博士專(zhuān)業(yè)：結(jié)構(gòu)工程指導(dǎo)教師：薛偉辰20090801AbstractABSTRACTAsoneofthecommonlyusedformofarchitecturalstructLlresprecastconcreteflamehavemanyadvantages，suchasrapidspeedoferectiongoodquality

2、control，remarkabletimeandcostsavings，etcSofaronlyafewexperimentalinvestigationshavebeenconductedtOinvestigatetheseismicbehaviorofprecastconcretemoment。resistingflamesToexpandtheapplicationofprecastconcreteflameinhi啦seism

3、iczones，two—storytwo—bayflameswithprecastbeamsandcast—inplacecolumnswereconstructedandtestedtoinvestigatetheirseismicbehaviorinadditionshapememoryalloydriverwerefabricatedandusedinthesmartreparimentoftheprecastconcretefl

4、ameThemainresearchworkmainlyincludesthefollowingfiveparts：1Anexperimentalprogramconsistingofthetestsof1／3一scaletwostorytwobayprecastconcreteflamesundercyclicandmonotonicloading，respectivelywasconductedtoevaluatetheseismi

5、cbehaviorofmomentresistinghybridconcreteflamesThehybridconcreteframesinvestigatedinthispaperconsistedofcompositeconcretebeams(compositebeams)andcast—in—placeconcretecolumns(CIPcolumns)Behaviorofthespecimenwasevaluatedint

6、ermsoffailurepattern，failuremechanism，stiffnessdegradationenergydissipation，displacementductilityTestresultsrevealedthatboththespecimensexhibitedamixedsideswaymechanism，andexhibitedfullandstablehysteresisloopsThemaximuml

7、oad—carryingcapacityundercyclicloadingwasapproximatelyequaltOthatundermonotonicloadingBoththespecimensbchavedinaductilemannerandthedisplacementductilityundermonotonicloadingwasabout10％largerthanthecorrespondingvalueunder

8、cyclicloadingAfourlinearrestoringforcemodelwasdevelopedthroughanalysisofthetestresults2BasedonthematerialconstitutivelaWSofconcreteandsteelfibersectionmodelwereestablishedonacomputationalplatformcalledOpenSees(OpenSystem