Name:

PID:$6332380$

Using $50$ ksi $.$ steel, select the lightest available section for the beam in the figure, which has lateral

bracing provided for its compression flange, only at its ends. Assume that $C_b=1\mathrm{.}00$ for this

example $($It$\text{'}$s actually $1\mathrm{.}14).$ Use LRFD method.

$($If your PID is $"5684659",$ then $A=5,B=6,C=8,D=4,E=6,F=5$ and $G=9.$ Interpret

$4.$G as $4\mathrm{.}9$ in this example$)$

$D=1.A=,\frac{k}{f}t.(not$ including beam weight$)$

$L=2.B=,\frac{k}{f}t.$