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1.__________________________________________________________2.sls___________3._______%4._____________5.__________________________6._________7._________8._________9.10.11.sF1sF2E()12.13.14.15.E=200GPaA=5cm2l=1mF=150kNl=4mm16.-abc17.-18.19902021221245349056723._____0.2e_______23.24.E200GPas240MPa300MPa3.510-30()25OACD100mmFMPaMPaMPa380MPaP=200,235s,480b,002.0P,0003.0e,%272627E480001.0340F0044.028,GPa200EGPa200105.330100.23P29.30.200MPa1000MPa1.1100%llld-=1l(A)(B)(C)(D)______2.(A)(B)(C)maxt(D)maxs______3.0.2s(A)2%(B)0.02%(C)0.2%(D)0.2%______4.(A)(B)(C)(D)______5.(A),E(B)bs,(C)sE,(D)sE,,______6()AB1CD7AB.C.D8.bABC9ABCD10Aa,b,cBb,c,aCc,b,aDc,a,b11.1A)1(b=)2(b)3(b)1(E)2(E)3(E)1()2()3(B)2(b)1(b)3(b)2(E)1(E)3(E)1()2()3(C)2(b)1(b)3(b)3(E)1(E)2(E)3()2()1(D)1(b)2(b)3(b)2(E)1(E)3(E)2()1()3(12.1/3A.B.C.D.13.________(A)E(B)E(C)E(D)E14.E1201402__________.(A)3(B)3(C)31(D)3115.ab_________(a)(b)(A)ab(B)a,b(C)ab(D)ab16.______________(A)(B)(C)45(D)4517.______(A)(B)(C)45(D)4518.10mm50mm100mmReL1ReL2A50A100)A.ReL1ReL2A50A100B.ReL1ReL2A50=A100C.ReL1=ReL2A50A100D.ReL1=ReL2A50A10019.50mm100mms1s2510()A2s1s510B2s1s5=10C2s1s510D2s1s5=1020.21.ABC2.022.AsBC4523.AAABC24.CCAcbao;Bcbf(bfoa);Cce(ceoa);Dcd(cdo);25.MPa200pMPa240sMPa400b100kNA.25.5mmB.23.2mmC.22.0mmD.17.8mm26.B--A.O-A-B-D-BB.O-A-B-C-BC.O-A-B-D-C-BD.O-D-B-C-BOABDC27..ABCD28.1/3A.1/5B.1/4C.1/3D.2/529.A5.65A11.3A.A5.65A11.3B.A5.65A11.3C.A5.65=A11.330.ABCD30.15%5%234A13B.14C.23D.3431.Le1234A12B.13C.24D.1432.A.EB.P0.2RC.mRD.gtA33.119KN124KN123KN128KN123KN121KN123KN122KN122KN120KNxSA2.5KNB2.1KNC1.9KND2.9KN34.510ABCD35.A.B.C.D.36.BA.22B.11C.44D.3337bbtTWAbTtWA.B.C.D.38.()A.B.C.D.E.TT1122334439CSS1110100KN50KN20KN10KN5KN9.96mmb580Mpa()(A)100KN(B)50KN(C)20KN(D)10KN400L1L0l1l()(A)01LL(B)01ll(C)%100001LLL(D)%100001lll41.()ABCD42.P0.2A0.2B0.2C0.243.EABCD44.()ABCD45AB450C450D45012d=10mml=200mmF=12KNF=20KN2.3.4.hodo135.610mm100mm10kN50mm()0.0318mm22.8kN34.0kN131.24mm6.46mm1)Esb2)22kN0.047810mm10N.m100mm21026.1o/m21028.1o/m21025.121024.143.0N.m98.4N.m1)2)91011.12.158.1mmLcL013.Q235235sMPa320MPa33.610260MPa33.310(1)E(2)ep14.15.d=10mmp=12KN1MPapd16.,d0=10.0mmL0=100mmL1=130.20mm,d1=6.23mmPs=21.8KNPb=33.1KNsb17.18E=200GPaReH=300MPaR`=380MPa1=0.25AO380MPaR300MPa1A19.b360/mina.0.63/minb.630/minc.60300/mind.550/s20.Lca.b.c.21.l0/3l122.23.0.224.25.