1、1、作弯矩图。ql 2qlEABDAql 2qN(a)(c)(d)(b)(f)(e)(g) (h)qNll lllll lCA BqNqlqNql 2 qlB CABC Dql 2ql 2BCAqNllql 2qNllllAB C D E llllA B C D Eql qNql 2llllqlql 2 qNllllDEAB C D(i) 50km10 kN4 m 4 m 4 m(j)4 m 4 m 4 m10 kN 10 kN(k)4 m1 mMN(l)4 m1 m10 kN/m(m) 20 kN 10 kN/m4 m 4 m 4 m 4 m 4 m 4 m2、求支座反力，并作弯矩图。lMq
2、qACBABCqMCAB CABq(a)(c) (d)(b)(f)(e)(h)(g)lFP lll llll lllllllll llq3、作弯矩图。ql 2q4 m3 m 3 m100 kN/m50 kNADBC3 m 3 m4 m50 kN/mqlBAEDCqAB CqDql 2qlCABD(h)(g)(e) (f)(d)(c)(a) (b)lFPlllllqllllllllllq llADBCABCDA BCD A BCD4、作弯矩图。BMNMNMql 2qMCABqMABC(a) (c)(d)(b)(f)(e)(g)(h) (i) (j)llllFPFPFPFPllllllqlllll
3、llllllllllllllllllACCA BDCA BDDEEDCA BD EF GAB C DE F G5、作弯矩图。A BC2lA BC2lqA BC2lA BC2lMA BC2lMA BC2lA BC2lA BC2lq(h)(g)(e)(f)(d)(c)(a) (b)FPl lllqFPFPFPl lll6、作弯矩图。AqlEDFCA BCABH IEA B C DF GEAB C DF GMql 2qN(a)(c) (d)(b)(f)(e)(h)qNql qN CA BqNqlql 2CBqNql 2(g)llFP FP FP FPllllllllllllllll2llllllll
4、2lllllllq7、作弯矩图。ql 2(a)qNqN ql 2(b) ql q NA BqNCE(c)F GD AB(d) qN BCDAB(e)BCDE FqN(f)ql 2AB BCD EFG(g) qN (h)4 m2 m 2 m 2 m 2 m4 kN/m10 kN 10 kN(i)2 m 2 m 2 m 2 m 2 m 2 m 2 m 2 m10 kN 10 kN10 kN/m 10 kN/m50kNlllll llllllllllll lllllll llq8、求指定杆件内力。(e)(f)(a)4 m4 m5 kN4 m 4 m 4 m4 m10 kN123(b)2 m2 m2
5、m 2 m 2 m 2 m50 kN321(c)50 kN2 m 2 m 2 m2 m2 m12(d)1212(g)作内力图。1(h)作内力图。qFPllFP llllFPFPlllllllllllll ll12FP9、求指定杆件内力。(e)(c) 50 kN2 m 2 m 2 m 2 m2 m2 m2 m123(g) 50 kN1230 kN50 kN1 2(f)1 2(h) 12(a)4 m4 m 4 m 4 m 4 m4 m10 kN14 m4 m(b)2 m2 m50 kN 212 m 2 m(d)12350 kN30 kN 30 kNll FPll lllllllllll lllFP FPlll10、作弯矩图。CA(a)(c) (d)(f)(e)BD E(j)2 m4 m(i)20kND EF GHAD(b) qlBEql 2CAFGqN2 m 2 mFCA BBACD EC 10 kN2 m2 m4 m 4 m50kA B D E(g)4 m 4 m4 m20 kN 40kN4 mqN(h)2 m2 m2 m 2 m10 kN/m10 kN 10 kNlFPllllFPllllllllllll lllllqq q50kN
