新旧混凝土组合梁界面试验研究

,(,325000):,,.,,,,.:;;;:TV43:A::1008-536X(2009)01-0077-03ExperimentonCompositeBeamInterfacebyOldandNewlyLaidConcreteBAILi,CHENGTing-chan(WenzhouDesignInstituteofWaterConservancyandHydropower,Wenzhou325000,China)Abstract:Thebindingstrengthexperimentoncompositebeambyoldandnewlylaidconcreteunderstaticbearingisdevelopedinordertoinsightthemechanicalpropertiesbetweentheconcreteinterfaces,takinghoopreinforcementintervalasthechangeableindex.Theresearchrevealsthatinterfaceslidingofthecompositebeamonlyoccursunderstaticbearing,notunderpressure.Keywords:oldandnewlylaidconcrete;compositebeam;interface;experiment0,,,.,,;,,;,,,[1].,,,..[2-3].,:2008-11-11:(1980-),,,..[4-7],.12,.1.200mm300mm3300mm,3000mm,1000mm.200mm,C25.100mm,C40.1,212,,.75.2.1211Vol.21No.120093J.ZhejiangWat.Cons&Hydr.CollegeMar.20091/kN/kN/kN/kNNCB100C25C40412756.5@10093.655105160NCB200C25C40412756.5@20093.65010018022C25,C25C40,C407,.,5,5,.3..,,.3.4,,.4.,30%,,.,,.NCB10095kN,NCB20090kN,3457821,,,,,.NCB100115kN(NCB200130kN),,.,,5.160kN(NCB200180kN),,.,,,.4,,,30%,,NCB100,,NCB200.1.5,,,,,,.,:(1),,.(2),,.(3),,,.:[1],,,.-[J].:,2007(2):206-212.[2].GB50010-2002[S].:,2002.[3].[D].,2002.[4],.[J].,2001,22(2):46-50.[5],.[J].,2003(2):33-34.[6],,,.[J].,2001(2):35-38.[7].[J].,2006(3):140-141.[8],,,.[J].:,1998(1):87-97.(76),(1)(2)84,226.20,,,.:[1].[J].,2007(3):69-70,73.[2],,,.[J].,2007(4):122-124.[3],,.[J].,2006(S8):1396-1398.[4].SL62-94[S].:,2001.1:79