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《高强溷凝土性能研究 -Constitutive Behavior of High-Strength Concrete under D loading》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、ACISTRUCTURALJOURNALTECHNICALPAPERTitleno.97-S64ConstitutiveBehaviorofHigh-StrengthConcreteunderDynamicLoadsbyLiBing,R.Park,andH.TanakaAnexperimentalinvestigationintothebehaviorofshortreinforcedweretestedunderconditionsthatsimulatedseismiccondi-high-strengthconcretecolumns
2、isdescribed.Thirtyreinforcedtions.Thirtyreinforcedhigh-strengthconcretecolumns(fco¢concretecolumns,either240mmdiametercircularor240mmrangingfrom52to82.5MPa)withconcretecoverandlon-squareand720mmhigh,containingdifferentconfiningreinforce-gitudinalandtransversereinforcement,
3、weresubjectedtomentconfigurations,yieldstrengthsoftransversereinforcement,concentricloadingtofailureatdifferentstrainrates.Fullde-andconcretecompressivestrengths,weresubjectedtoconcentric10tailsofthetestswerereportedelsewherebyLiBingetal.loadstofailureatdifferentstrainrate
4、s.Resultspresentedincludeanassessmentoftheeffectofstrainrate,differentconcretecom-pressivestrength,amountanddistributionoflongitudinalsteel,EXPERIMENTALPROGRAMandamountofdistributionoftransversesteel.Astress-straincurveToobtainsomeinformationaboutthebehaviorofcon-forconfin
5、edhigh-strengthconcreteloadedatahighstrainratefinedhigh-strengthconcreteunderdynamicloading,three(comparablewithseismicloading)isproposedandcomparedwithdifferentunconfinedconcretecompressivestrengthswerethecurvebasedontestsconductedatlowstrainrates.selected:52;76;and82.5MP
6、a.Bothsquareandcircularsec-tionshapeswereselected,bothbeingcommoninpractice.Keywords:column;high-strengthconcrete;reinforcedconcrete;reinforce-Twodifferenttypesofreinforcementwereused:Grade430ment;stain;stress.normalyieldstrength,andUlbonhighyieldstrength.Basedontheconside
7、rationthattheaxialcompressionloadwaslim-INTRODUCTIONitedbythecapacityofthetestingmachineused,whichcanDuringsevereearthquakegroundmotion,cyclicloadingproduce10MNincompression,acolumnsectionwidthorwithhighstrainratesisimposedonastructure.Itwaspre-diameterof240mmwaschosen.Aco
8、verthicknessof15mmdictedthatforaveryrigidstructurewithashortfundamentaltotheoutsideoftheh
