533320kN/m 53.33 53.33 160 D CD 8m M图(kNm ∑M=53332084-533°8=0 o=80kN 80 80G 8.9 160 80 NCA 8.9 Q图(kN)( 80 80 N图(kN) X=0N=-8.9kN Y=0N=-80kN CA10 160 53.33 M图(kN.m) 53.33 53.33 Q k N M Q C D D C D 80 53.33 20 8 4 53.33 8 0 = = + • • - - • = 8m ↓↓↓↓↓↓↓↓↓↓↓↓ 20kN/m C D QCD 80 160 - 80 + - 8.9 + 8.9 Q图(kN) 8.9 80 NCA NCD = =- = =- Y N k N X N k N C A C D 0 80 0 8.9 - - - 80 80 8.9 N图(kN)