Find the allowable axial compressive load for a $W840$ structural steel column of

ASTM A$36$ steel. The column has an un$-$braced length of $24ft$ with respect to the X$-$

$x$ axis and $12ft$ with respect to the $Y-Y$ axis, as illustrated in the accompanying

diagram. The column is pin connected at the top and fixed at the bottom. $($assume that

the column is pin connected at mid$-$height$)$

answer $192\mathrm{.}5$ kips