Example $13\mathrm{.}9$ Draw the shear diagram for the cantilever beam in Figure

$13\mathrm{.}29.$ Neglect the weight of the beam.

$$ Reactions for a cantilever beam include both

vertical and moment reactions Example $13\mathrm{.}9$ Draw the shear diagram for the cantilever beam in Figure

$13\mathrm{.}29.$ Neglect the weight of the beam.

Reactions for a cantilever beam include both

vertical and moment reactions

$R_B=wL=(30k\frac{N}{m})(3m)=90kN$

$M_B=-\frac{w{L}^2}{2}=-\frac{(30k\frac{N}{m})(3\mathrm{.}0(m){)}^2}{2}=-135kN*m$