基于軟化效應(yīng)的型鋼混凝土節(jié)點(diǎn)抗剪承載力計(jì)算

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ZHAO Hang，XIAO Qingzhan （ShaanxiPolytechnic Institute，Xianyang712OOO，China）

Abstract：According totheexisting testdata，theshearbearingcapacitycalculation formulaof medium stelconcretejointsinthe TechnicalSpecificationforSteelReinforcedConcrete Structures（YB9082—2006）andtheCodeforDesignofCompositeStructures （JGJ38—2O16）arecalculated.Theresultsshowthatthecalculationresultsinthecodeareconservativeandhavealargedispersion， mainlybecausethevalueoftheconcreteitemistoosimplifed，resultinginalargedispersionofthecalculationresults.Basedonte softeningefect，consideringtheweakeningfectoftemaintensiledirectiononthestrengthofthemaincompresivedirection，the influenceofconetestrength，strpratio，sectionstelrestraintstrength，axialcompressionratiandoterfactorsisquantiatiely analyzed，andamodifedfoulaforteconcreteteinteshearbearigcapacitycalculationforulaispropoed.Theresultsshowthat theproposedformulacanreasonablyconsidertheinfluenceofvariousfactors，mprovetheaccuracyofthecalculationresultsandrduce the dispersion.

Keywords：steel reinforced concrete；shear bearing capacity of joint；softening effect

0引言

型鋼混凝土結(jié)構(gòu)因其高強(qiáng)度、高剛度、高延性等優(yōu)點(diǎn)被廣泛應(yīng)用于高層及超高層建筑的抗震設(shè)計(jì)中。（剩余4683字）