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19992SHUILIXUEBAO2X(,,450002)(,,450002)(,,450052),,.,,.TU5281572..,,,.,,,.114,:1112.11/mm/mmhf/mmf(%)fc/(N/mm2)Vu/kNAH20101483000021024106910AH20131483008511021024108615AH201414830010511021024138315AH201514530015011021024179615AH2016150300170110210231410115AH211015030030011021023149515BP201515230010501521023128910BP211514830010511521023156910BP221015330010521021023188115CK2110147300105110110291819110CK2115148300105110115251013510CK221515530010511021525106115CK231015530010511031025106110CK2410148300105110410251049101111,PC(PlainConcrete),SFRC(SteelFiberReinforcedConcrete).1.C30,,425,515mm,,CSGW=11164210015.25mm,016mm,42.,.,.11282X199798,..10%.,5%.3min.1132.2X2Y,YJ216.YJ216,5,JC10240X.2hff.1.1:A,B,C,,A,B,C;HPKhfhf.1,hff.2Vu/bh0fchf/h211hfhfA,Vu/bh0fchf/h2.,hf/h,,hf,hf=015h,.,26%50%.212ff,B,Vu/bh0fcf3.,f,.,f.213,C,Vu/bh0fc4.,.,,=215,..3Vu/bh0fcf4Vu/bh0fc923,,.,.5,:(1),45(4348).(2).,5..(1);(2)Va;(3)Vd;(4)Vf.[3],VaVd,Vd,.44116C/h0,(1),6.,(1).C/h0=015+0145(1),(1):C.,[2]:ffc=Affc+B,(2):ffc,,ffc=fc;AB.VdVa,VdVa(3)[3]:Vd=(1fftm+2)bh0,(3):1,2;fftm.,(4)[5]:fftm=0141ftf,(4):;ft;f,,f=flf/df.412,5,bh0=sbh0+bhffftm,(5)Vfc=bh0+bhffftm+Vd,(6)03Vfca=bh0(h0-12h0)+VdC+2bhffftm22C-2hf2-C,(7):C.413(2)(3)(6):=(Vfc-Bbh0ffc-bhffftm-1bh0fftm-2bh0)/(bh0A).(8)(8)(7)(4):Vfcbh0ffc=B1-12),+21-12-ACh0+45ffc+0141fftffc11-12-ACh0+f1-12-fACh0+2fA-2fACh0,/1-12-A3.(9):f,f=hf/h0.,,,(C15C50),.,.,(9)0141ftffcD,D=0141ftffc.:D=0124.[23],,(9)A=-0125,B=0133,1=0115,2=0164ffc,=013,(9):Vfcbh0ffc=0134+3314++0124(013+2f-0142f)314+f.(10)(10),,,.(10):Vfcbh0ffc=0134+3314+1+0124(013+2f-0142f)314+3f,:Vfc=Vc(1+vf).(11):Vc;V,V=0124(013+2f-0142f)0134+3.(12)(11),114=114;3=3.hf015hhf=015h;hf015hv(12).(11)019810112801131.5,.(1).(2).,,.(3),.131(GBJ1089).:,1989.2..,1984,(7).3..,1992,(2).4..,1981,(5).5..,1991,(2).TheexperimentalresearchontheshearbehaviorofpartialsteelfiberreinforcedconcretebeamsGaoDanying(ZhengzhuoUniversityofTechnology)ZhaoJun(ZhengzhouUniversity)ZhuHaitangZhangQiming(ZhengzhouUniversityofTechnology)AbstractBasedontheexperimentandanalysisofreinforcedconcretebeamsandpartialsteelfiberrein2forcedconcretebeams,theeffectofthethicknessoffibroustensilezone,thevolumefractionsofsteelfiberandtheratioofshear2spantoeffective2depthonshearbehaviorofpartialsteelfiberreinforcedcon2cretebeamsarediscussed.Themodelforcalculationandcorrespondingformulaareestablishedwhichiscompliedwiththoseoftheconventionalreinforcedconcretebeams.Keywordspartiallyreinforced,tensilezone,shearbehavior.23