精品文档---下载后可任意编辑序次图类图示项目计算式1荷载反力RA= 516 F; RB=1116 F剪力VA=RA;VB=-RB弯矩弯矩M C= 532 Fl; M B=− 316 Fl剪力挠度时,wmax=0.00932 Fl3EI2荷载反力RA=Fb22l2 (3−bl )RB=Fa2l (3−a2l2 )剪力VA=RA;VB=-RB弯矩弯矩当 x=a 时,M max= Fab22l2 (3−bl )剪力挠度CB 段:wx= 16 EI [R A(3l2x−x3)−3Fb2 x+F( x−a)3]3荷载反力RA=F2 (2−3al +3a2l2 );RA=F2 (2+3al −3a2l2 )剪力VA=RA;VB=-RB弯矩弯矩M max=M C=R Aa;M B=−3Fa2(1−al )剪力挠度CD 段:wx=16 EI [ R A(3l2 x−x3)−3 F(l2−2al+2a2) x+F( x−a)3]荷载反力RA=38 ql ; RB=58 ql剪力VA=RA;VB=-RB弯矩弯矩当 x=38 l时,M max=9ql 2128剪力挠度时,wmax=0.00542 ql4EI荷载反力RA=qa8 (8−6 a+a3);RB=qa28l (6l−a2);a=al剪力VA=RA;VB=-RB弯矩弯矩当x= RAqM时,max=R A22q剪力挠度AC 段:wx=124 EI [ 4 R A(3l2 x−x3)−4qa(3bl+a2)x+qx 4]BC 段:wx=124 EI [4 R A(3l2x−x3)−qa(a3+12blx)+6 x2−4 x3 ]当 x=a 时wa=124 EI [ 4aR A(3l2−a2)−3qa2(4lb+a2)]荷载反力RA=qb38l3 (4−bl )RB=qb8(8−4b2l2 +b3l3 )剪力VA=RA;VB=-RB精品文档---下载后可任意编辑弯矩弯矩当x=a+ R A2q 时,Mmax=R A(a+RA2q )剪力挠度AC 段:wx= 16 EI [R A(3l2x−x3)−qb3 x ]BC 段:wZ=124 EI [4 R A(3l2x−x3)−4 qb3 x+q( x−a)4 ]当 x=a 时:wa= 16 EI [ aRA(3l2−a2)−qb3 ]7荷载反力RA=qb18l3 (12b2l−4b3+ab12);RB=qb1−R A剪力VA=RA;VB=-RB弯矩弯矩当x=a1+ R Aq 时,Mmax=R A(a1+R A2q )剪力挠度AC 段:wx=124 EI [4 R A(3l2 x−x3)−qb1(12b2+b12) x ]CD 段:wx=124 EI [4 R A(3l2x−x3)−qb1(12b2+b12) x+q( x−a1)4]