1、 =+=+O AFN zzIyM zzIyMAF N O2NFF 41maxlFM xxFN图图M图图F2F1/4AF2 WlFWM41maxmax WlFAF412maxmaxt AF2 -WMmax max tmaxt cmaxc FACD1.2m1.2mB30FFRAyFRAxFyxFNAB3002.14.230sin 0N FFMABAFFAB NFFFFFFAyyAxx5.00866.00RR AFAFAx866.0R zzAyWFWF6.02.1Rmax MPa37.946.0866.0maxc zWFAFFACD1.2m1.2m30BFFRAyFRAxFyxFNAB30aaaa1
2、122N14)2(aFaFAFAF aa22N222612/2aFaaFaaaFWMAF 8 84 42 22 22 2 aFaF/laABCFBFMxlaABCAAFMMFlA截面截面 C3C4TC3C4C2C1 C2C11C1 2222314212)2(2 02 22313r4 224r3 r 22313r4 224r3 1WTMWTWM222t2223r)(4)(4 WTMWTWM222t2224r75.0)(3)(3 3t216dWW 1ABCD1.4m0.6m15kN10kN0.8mABFemkN15 6.0104.115e MkN25 FABFMe+15kNm-20kNmmkN20max MmkN15 T)1(3243 DWMPa26.157223r WTM
