QUESTION $4$: $($Post$)$

$[8$ marks$]$

Check the resistance of a single $8989mm$ No$.\frac{1}{?}$ No$.2$ grade S$-$P$-$F post for the following conditions:

specified dead load $=1\mathrm{.}2$kPa

$,$ specified live load $=2\mathrm{.}1$kPa

tributary area $=4\mathrm{.}0m^2$

unbraced length $=3\mathrm{.}5m$

dry service conditions

untreated

post effectively pinned at both ends

no eccentricity considered