Question $1[25$ marks$]$

The steel plate shown in Figure $1$ is connected to a gusset plate using six $(6)$ M$20$ bolts. Check if the plate can carry an axial load of $600kN.$ Assume the use of S$355$JR steel and drilled holes.

Given: plate thickness $t=12mm,f_y=350$MPa and $f_{cu}=480$MPa.

All dimensions are in $mm.$

Question $2[25$ marks$]$

Check the adequacy of an $H-$section column with properties $20320352,$ Grade S$355$JR$,$ can withstand an axial load of $1400kN.$ The section, with a length of $3\mathrm{.}0m,$ is embedded in concrete at the top connection and pinned at the bottom.