$(5$ points$)$ A $20ft$ long double angle $(2L33\frac{1}{4})$ is designed as tension wind brace for a

multi$-$story building, to resist a wind force of $100$kips. $4992$ steel is used and $3/4$ in$.$ bolts are

connected to the outstanding legs of the double angles only. Two lines of bolts $($each line in

each angle$)$ are designed with three bolts per line, standard punched holes are used. Check

tension strength of the double angle tension wind brace using LRFD$,$ considering yielding

and net area rupture.