型钢高强高性能混凝土框架节点抗震性能及设计计算理论研究-结构工程专业论文.docx

ResearchonSeismicBehaviorsandDesignMethodofSteelReinforcedHighStrengthandHighPedormanceConcreteFrameJointsSpecialty:StructureEn阴阳:ringPH.DCandidate:ZengLeiSuperviwr:Prof.Wu Mi皿heProf.Zheng ShansuoAbstractAsanoptin也edcombination ofhigh-tech∞ncretematerial andnew-style 如uctur哇，St，reinf忧edhigh严rfonnanceandhigh跑回供∞ncrete位ucture(SRHSHPC掬ucture自:rshort)阳sessesexcellentseismicbeha飞riourandg∞dendurance.The阴阳isd巳votedtostudyiIlgonseismicbehavoirs anddesignmethod ofSRHSHPC framejoints. 刀lemaincontentisdescribedasf01l0附:1.ToirnproveenduranceofSteelreinforced∞ucretestructure(SRC班时阳reforshort)andωlve the bond-slip problem between steel and concre饨，high 跑回gth and high严由，nnance∞ncrete仔IS田Cforshort)appliedtoSRCstructureis弛JdiαiThe能chnicalmethod ωstrengthen concrete and increase end山anceisanaIyzed.臼thogonal 回tisdone，andamul岳。均创tiveandnonlinear op往mal mathematic model ise到al:lishedbasedon舱bond-sliptheorybetweenst创sha严andconcrete，whichtakesthemateriaJs∞st扭dbondstrength as0均ective functions，时饱kesthe 0也er归由，zmance indexes of HSHPC as∞nstraintconditions.Ba蚓onlargearnounts ofexperiments，也ewo面ngmechanismofHS田Cisanal严edand掬喃喃血∞ifistitutivemodelofHSHPCis础blishedba蚓ontheexistedachievement.Cyclic loading testswerecar币edoutonfivehalf-scaJeinteriorjoints ωunderstandmechanicaJcharacteristicsandseismicbehaviorsofSRHSHPC恤卫ejoints. Thetest阳arneterstaken intoaccountareconcretestrengthand缸iaJcolurnnload.Thestudy includes joints mechanicaJcharacter，如ess distribution，crack development，failuremode，ductilityandenergydissipationundercyclicload.AtypicaJcrackpattemis provided which can well reflect mechanicaJcharacter and darnage pr∞ess ofSRHSHPCfr况时joints.Theinfluenceofconcretestrengthand缸iaJcolurnnloadisanaJyzed.η10Ughfailuremodeispanelshearfail脯，thejointsdeformationandductilityfactorcanreachahighlevel，whichindicatesthatSRHSHPCfrarnejointsposs础excellentseismicbehaviors.Aωordingωseismichy:耐resiscurveandskeletoncurveobtainedfromt邸，restoringforcecharacteristicsofSRHSHPC企町lejoints includingductility，ener