弯矩图百题练习
一、梁q2M=qL2PLPPLqP=2qLLL/2LLLL(1)(2)(3)PLPLLqP2PLLLL(4)(5)(6)qMqP=qLLLLLLL(7)(8)(9)2PLLM=PLqP=qLL2M=qLqP=qLLL(10)(11)(12)qqqLLL/4LL/4(13)(14)(15)L/2
1
q=106015qM=2qa2m2m2m2ma2aa(16)(17)qP=qaM=qa2P=2qaq3aa2a2aaa2a4a(18)二、悬臂式刚架M=PL300PLL/2L/2PLL/2L/2(19)(20)qLPLL(21)L(22)
2
PPaaa(23)2PLPLL(25)qa2/aqqa22/aa(27)PLL2LL(24)qaqaa(26)qqa2aa(28)3
L2L
P10kN/mmP=40kNaaa2m(29)30kNm320kN/mm33m3m(31)qLL(33)240kNm22m2m2m(30)q2/L2/LL(32)qqaaa(34)4
aa
PPaa(35)三、简支式刚架qaaqq/2aa/2a/2(37)qa2qa2aa(39)PLL(36)qaqa2a(38)qqaa2a(40)5
a/2a