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ACI()~,,,,,.,,1,,,,,1,,,,ACI:,a/d2.5;,In/d5,a;l;d.{hLLLLL2}}}}}}...,...l|h|(),46l}llllllllll.....1(a),(b),(c),d,n.8.4,,0.151;,0.SOa,d1.l/d,n.8.3:In/d2.0,V(8fb,d)(1)2l/d5,+:500p,b,dMu/6f,:z,(55(3)MVdl~V0+!(2)V;b,4;d,(2),l/d5,v10b-,810,(l)(2):v(0.664b,J)(la)2.5,_.,i____M_,.__._(3.52.5),~\Vd//,/,J,85VC:VC=2bwd(4),(3)(4),,M\f,_,.v=UVc17)bv,553(l+)b,d(Za)2.,,,ACI(ACIu.8.6),0.5fb,d(3a)vC0.1661bwJ(4a)3.V(3)(4),,V(V+Vs),,Vs,,Av,s;,A,::n.8,7,:vs(+A,11l/df,,-.JYUJ1/v25,A,sA52(5)Vs,~,,.,,,,_,1+l/d,,,~~J,r.F~1211l/dJ,:_,,,,L,,Jl/d12~-,---,-,,l:/dn,;,l/d,,,,;I/d==5,1/2,ACIn.8.811.8.9:A,=o.00isb:A,o.oo25bsZ:,1.,,M:MAsf,xjd(6),jdA(6a)I,Jal,,,,(450rnm);::d518in(d,,:_,~--.;IOlliLJJ450mm)(ACI11.8.10),,,,()ACI,h/l2/5h/l4/5,(ACI10.7.1),(CEB))CEB,id:lI/h2,jd=0.2(l+Zh)(7a)l/hl,jd=0.61(7b),h;l,l,1.15,(6a),,=0.25h0.0510.2oh(8),2.,(6a),:ll/h2.5,jd==0.2(l+1.sh)(ga)I/hl,jd=0.51(gb):A,As,,AS,=0.5(l/h)As(gC)20%AS:A:60%(2)l/h1.0,(9c)AS,,,20%,As60%20%,2):1.a/d2.5()I/d5.0();2.,xo.sa;x=0.151V,(1)(2),,;3.(3)(4)Vc,Vv,V,::;4.;5.(7)(9),jd,,()400,,,l/h2()l/h2.5(),I,I1.151(l,l);h,CEB,,CEB,ACI,,ACI,ACI(),b=500mm,hi800mm,l=3000mm,q=1200kN/m,f=28MPa,f;=MPa,;:1.l/dJ=o.gh=o.9x1800=1620,/d_3000162024.5kN/m,=1.855g0.500xl.8X24.5=22kN/m*=1.4x22+1.7x12002070kNwl_2070x3288=2328.75kNml1.151,l=1.151=1.15x3=3.45m92,l=2.662.52.5,,h.a),_4926500x620=0.0061j=0.2(l+Zh)=0.2(3.45+Zxl.a)=l,4lm=1410mm(6a,:As4476mm828mm,4926mm2,4,(3a),V2.5(0.1628+17x0.0061,X2.)xsx1620=2336kN0.5b,J=0.5x500x1620=2143kNV2143kN0.25h0.051o.25xisoop.osx3450=280mmV,_1-V-2173.50852143414kN20_noo~nn0i,u,,j2.Q.151=Q.15x3000450mmV414kN8mm,,,p:52,A,A,2x50.3=10lmmZ(5),414(l+1.8512.70xd.452173.5kNx4101ILnU,.dl,,9nUS.O.!,.(la),V=(0.664fb,d)=0.85(0.66428x500x1620)=24192173.5kN,M,,410x1620x101414000162mmd_1655=32m450mmMe==xo.2070x0.452=1187.7kNmM_1187.7,.-,=VJJJV.d1(JXlUVd_M1_s=162m,s160mmA,0.0015x500x160=120iolmmZA,h0.0025x500x160=20010lmm,,M,.,OOJ,se0.0.aUJOtJVudsm,,120mm,6.0015bs0.0015x500xl20=9010lmm,()10mm,A,==2x78.5157m2,120mm,0.0025x500x120157(),,,,,a/d,(ACnl.9.3)Nuc,ACI,0.2VACIa/dl:1.();1.ACI11.t7,,,,,,(3),(ACI11.7.4.1),v=Av,f,#(10a)3(a),(b)1,211.7.5V::V;0.Zfbd(l)V800b,d(12)(V)(1)(12).,(12):.V5.52b,d(12a),fMPa;b,dmm;VN,a,,A:f,A,;f,sina:A,:f,eosa;(ACI11.7.4.2),V,=A,ff,(sinaf+eosa:)(13a)A,f=Vnf,(snaf+eosa;)(13b),,f;(10b)(AClll.7.4.3):1.41.00.6__,__.,__f,.4(A2.Nu,,(AClll.9.4.3):,5)A(ACI.ll.9.4):Ah0.5(AA)(18)N~-(14)AdJ,,0.853.,,,,Af(4):,():1.V,Nv+Nd,,020fb,d5.52b,d,,;__Va+N(hd)f;jd2.A,Af=_V.AA,:(15),MVN,N(lid)Nu0.9a,,jd0.d,Nu,_n-2n,UOaA,=,,0.Iyja4.:Af=Mx0.85f;d(16)4.(AClll.9.3.5),_2A=Av,+A3AsAfA,A2.;,,,S,vfn1IJAsA+A(17b)2_,_,.,,_,_______.._,,As,p=,---bwdA,AS;,Af,,AS;5.004(),AI,,ACI,,,A,r_470600410x1.0=1147.smmZ,l(16):Af400000x130+80000(450350)0.9x410x0.85X350=546.6mm2=A.f.(14),Nu80000__,A22o.6mm(17),2.2,,:,,A;=A,;+A-1147.8+33+229.6=995mm2As=Ar+A=546.6+229.6=776.2mm2,:_,fLJ35/J2s=UU-.Uw=UUI41U()b250mm,h~Omm,d=350mm,V=400kN,a130mm,N0.2V,N=80kNf35MPa,f,=410MPa,,:250350=298.8mm2995mm()322mm,1140mm,310mm,2x3x78.547lmmZA,f1,,Jon___:-11lO00u111111,J-;70.6kNU.0.2fb,d=0.2x35x250350=612.5kN470.6kN5.52b,d=5.52x250350483kN470.6kN,=1.0,350233mm,75mm[1]ComitEuroInternatnalduBeton(CEB),InternationalReeommendationsfortheDe-signandConstructionofConereteStuctures,June1970,80pP.:andCEBFlp,ModelCodeforCon-ereStruetures,Vol.2,Paris,APril1978,345PP[2]Mattoek,A.H,chen.Kc,andSoon-gswang.K,TheBehaviorofReinforcedConelteCorbels,J.ofPCI,Vol.21,.0.2,APlil1976,PP.5287[3]ACICommittee340,StrengthDesignIlandbooR,Voll:Beams,Slabs,Braekets,F00tingsandPileCaPs,SPeeialPublicationSP17(81),ACI-Detroit,1981,s08PP