~. l~ll:::ltmlJ'lJll~ llJllJtJ~vi~(Bending
Moment Diagram) 111ll BMD fill
i1l~V1111:,r~~
fl11lJ
fflJ'l1
tJ1h:::11';h~ llJllJtJ~vi~riUfl11lJ(J1l'IJll~f1ltJ,f
tJ
l~(Jil ~~l'll~~l(JiJmr~'lJll~f1ltJ
11'JtJ
~~
l~lJ.1tJf11'IJll~UfltJ
x
~:::I1'JtJf11~1~ 'bJIiI1lJfl11lJ(J11'IJll~f1ltJ,ftJ .f~It"l'll~~ltJ~1(JiJll~tJ1i~'VI1~
~ltJ'lJl1iJll('(~'lJll~f1ltJ,ftJ
ItCl:::f11'VIHltfltJ y
~:::11'JtJf11'IJtN llJllJtJ~vi~~111.i'lvilill~
'1
'lJll~f1ltJ
2.4.4
fllj~~lfl1ll~l1lJl(J
(Sign Convention) (9)
mru'IJll~UHliilltJ ltJflnW~ 1 ~W1f1l tJl'll~ ~ltJ~1(JiJ llCl'~ ItHl~~ilYirYl'll~~tJ
l'litJ
U~ ~,jfiii51J1'IJll~fl1tJUUU'li1~1~(J1,ftJ iMiilfl~lln!lJ1(Jt1'JtJU1fl
(+)
lLCl:::U~ ~ i~~iiYirYl'll~Mci1~
l'litJ
Jl11Ufl1111l11H~m:::'l'i1riumtJiMiilfl~ll~l1lJ1(Jl1'JtJClU
(-)
lfl~ll~l1lJ1(J111ci1rl'~:::mluritJ\11
111 flflljW
~1~
W
11~lJ~lfl'VI H~ltJ'lJl1iJll l,jl'll~ ~ltJ~l(JiJll
mru
llJllJtJ~vilii
1
tJfll~w~nW1lfl~ll~l1lJl(J'lJll~ llJllJtJ~vi~,ftJ ll1~:::W~1~W 11~1~(J
lMllJllJtJ~vi~1~i\1iI1lJ~'l'il1MmtJ!ii~flmltitJ111ll1ri~~llCl~~ltJciH
fill
lii~lll fllj(Jfl~~'1,j'VI1~
~ltJciH'lJll~f1ltJ 1111l1ii~lllfllj(Jm)~l'll~~ltJutJ'lJll~mtJ
lMl1'JtJ
llJllJtJ~vi~U1fl
(+)
l~uri
llJllJtJ~vi~'lJll~mtJ'lil~I~(Jl
11'JtJ.1tJ
23