Determine the maximum factored load $(P_u)$ that can be carried by the double channel tension

member shown in the figure below. The $C920$ channels are placed back$-$to$-$back and are

connected through their web using $8$ bolts to a $1\mathrm{.}5"$ thick gusset plate. Note that there are two

open holes present in each channel flange as shown that should be considered when

calculating the controlling net area. You can use an average of the $t_f$ and $t_w$ thickness when

calculating the stagger term, if needed $($or use the smaller of the two thickness

conservatively$).$

Check the limit states of gross section yielding, net section fracture, and block shear for the

double channel tension member in your analysis. In your work clearly identify the critical

net section area and the critical block shear path for this tension member. A$992$ steel and

$\frac{5}{8^{\text{'}\text{'}}}$ diameter bolts are used. Use the equation $(U=1-\frac{(\stackrel{}{x})}{l})$ to calculate the shear lag reduction

factor $(U).$ For staggered effects, investigate the first three viable failure planes. Draw the

failure planes and give proper labeling.