Problem #$1$

Calculate the maximum allowable load $($in KN$)$ of a $5\mathrm{.}0$m long sawn lumber column can carry. The nominal size is $152\mathrm{.}4$ x $152\mathrm{.}4$ mm $(6"$x$6")$ and the actual size is $139\mathrm{.}7$mm x $1139\mathrm{.}7$mm $(5\mathrm{.}5"$ x $5\mathrm{.}5").$ The applied loading is for $15-$year duration and the wood used is visually graded sawn square Tindalo $($E$=11\mathrm{.}721$ GPA, Fc $=10\mathrm{.}342$ MPa$).$ The column is pinned both ends. Consider adjustments for load duration and moisture condition.