Civen:

Required:

Using $1\mathrm{.}20$DL$+1\mathrm{.}60$LL LRFD combo, design the system so that all tension members will give the most economial AISC single angle $($equal or unequal$)$ for both Tensile Yielding and Tensile Rupture, Use welded consecton for all members and utilize A$\mathrm{.}36$ properties for the calculation. Also, $a=3\mathrm{.}19m,b=5\mathrm{.}53m,c=2\mathrm{.}21m,d=8\mathrm{.}89m,$ and $e=9\mathrm{.}54m.($Economical $=$ Safe and Lightest AtSC Single Angle$)$