1、 .辅助支撑辅助支撑跟跟刀刀架架顶顶尖尖 。l0111 FXl2)(2qxxM xxM)(EIqlxxqxEIlF8d)2(14021 l11111XX l11X xxM)(xxM)(EIlxxxEIl3d13011 l0111 FX11111XX 0111 FXEIqlxxqxEIlF8d)2(14021 EIlxxxEIl3d13011 341038lqlXEIEIqlX831 l01111 FX 12 01111321 FXXX1201111321 FXXX11111XX 21212XX 31313XX 01313212111 FXXX 02222321 FXXX1202222321 F
2、XXX02323222121 FXXX 12121XX 22222XX 32323XX 03333232131 FXXX 01313212111 FXXX 02323222121 FXXX jiij )3,2,1,(ji 120002n21n12222212111212111 nFnnnFnnFnnXXXXXXXXX jiij 2d iiilMxEI dijijlM MxEI d FiiFlM MxEI 01111 FX xlxM1)(xlxM1)(1)(xM1)(xMd(1)d)(1002211 llxxlxEI xFxM2)(lFxM2)(FxxM)(1)(xM1)(xMxlxM1)(EI
3、FlxFxxFlxlxFxEIl/ll/F2413 d1d12d212200201 EIl3411 FlX32131 01111 FX EIqaxaqxEIaF6d21402221 EIqaxxqxEIaF8d214022222 EIqaxqxEIaF6d121302223 EIaxaaxxxEIaa34dd1302110111 EIaxxxEIa3d13220222 EIaxxEIaa2d11d111021033 EIaxaxEIa2d132022112 EIaxaxxEIaa23d1d112021013113 EIaxxEIa2d1122023223 EIa34311 EIa3322 EI
4、a233 EIa232112 EIa2323113 EIa233223 000333323213123232221211313212111 FFFXXXXXXXXX232123212321312812312812938qaXaXaXqaXaXaXqaXaXaX 48167162321qaXqaXqaX lEIAB2l2lF取静定基1XF静定基2X3XF2FlFM1ll1M3111124()233ll lll llEIEI 322112()233ll llEIEI 3312(1 11 1)lllEIEI F2FlFM1ll1M1113M2M1l3122111()22ll llEIEI 21331
5、113(11)22ll ll lEIEI 2233211(1)22ll lEIEI F2FlFM1ll1M1113M2M1l3111()2 228FFllFllEIEI 321155()2 22648FFllFllEIEI 2311(1)2 228FFllFlEIEI 111122133121122223323113223333000FFFXXXXXXXXX 3323123332312322212343032285023248320228lllFlXXXEIEIEIEIlllFlXXXEIEIEIEIlllFlXXXEIEIEIEI 123123123321236302416245012416
6、0l Xl XXFll Xl XXFll Xl XXFl 123332133232FXFXFlX aa01111 FX iFNiFNil1NNNXFFFiiFi iiilFFNNiiilFFNNF22 2 a2a2Fa22 a22a222/F2/F)222(NN FalFFiiialFFiii)21(4NN EAaEAlFFiiii)21(4NN11 EAFaEAlFFiiiiF)222(NN1 1NNNXFFFiiFi 2)21(4)222(1111FaFaXF )4sin(0 FaMM)4(0 )24(sinaM 2Fa d)sin()4(sin1d241aaFaEIEIsMMsF 322
7、110d1(sin)d4sMM saaaEIEIEI0284313 EIFaXEIa01111 FX221FX EIFa283 sin)4sin(1aXFaM )24(22Fa sin22sin1FaaXM )4(0 sin221)4(sin Fa000333323213123232221211313212111 FFFXXXXXXXXX122320F 11113312223113333000FF X X X X X000333323213123232221211313212111 FFFXXXXXXXXX0022221211212111 FFXXXX33330F X01111 FX 0212
8、7313 EIFaXEIaEIFaxaFxEIaF2d2)(232021 EIaxaxxEIaa127d)2(d232220012111 FX761 FFFByAy76RR FFFBxAx RRFaMMBA74 )cos1(2 FaM1 M11110F X)121(1 FaX)2cos1()121()cos1(2)(FaFaFaM()221100d1 d22MMaaaEIEIEI 2 2()()()221002d1cos1 d2122FMMaFaEIEIFaEI 2 2)2cos1()(aM)2(0 EIFaEIFaEIFaEIaMM33202320149.0)24(d)2cos1(4d)()
9、(4 2RqaFAy 2RqaFCy 0R AxFa=50mmq01111 FX xxM)(xxM)(axM)(0)(xMe)(MxM 2)(2eqxMxM 6811d)2(1d)(142e02e2/e1qaaMxaqaMEIxxMEIaaaF xa=50mmqa=50mmxxM)(axM)(xxM)(axM)(11001dd aax x xa a xEI 334a a=50mma=50mmx01111 FX 31134a 681142e1qaaMF 01111 FX 16.56kN)4(333214e1 qaaMaXa=50mmqa=50mmq)(56kN.16R AyF)(50kNR AxF m922kN AM0022221211212111 FFXXXX qqEIqaxaqxEIaF6d)21(1422201 EIqaxxqxEIaF8d)21(14222202 EIaxaxxEIaa34)dd(13202102111 EIaxxEIa3d13202222 EIaxaxEIa2d132022112 q 0832062344231342313EIqaXEIaXEIaEIqaXEIaXEIa)(73)(28121 qaXqaXqqa73qa281qa742283qaqa281
