peblem $1(\backslash (12+3\backslash )$ marks$)$

The following figure shows a typical roof$/$floor plan of $3-$storey $(2$ floors and Roof with storey height of $3\mathrm{.}5$ m $)$ industrial wood building. The building has a cantilever floor portion with $600$ mectangular $($not square$)$ sections. $1$ beam. The columns of the building are allengular, not square$)$ for Column C$1$ section $($recimber$.$ All the beam$-$to$-$column connections the base using No$.1$ D Fir$-$L$.$ Use post and column distance for the A$1-$B$1$ beam is $5000$ minns ared. The center$-$tolaterally supported $(\backslash ($ K$\_\{$L$\}=1\mathrm{.}0\backslash )).$ Also, assume the foll mm $.$ Also, the beams are $-$ No Treatment $(\backslash (\backslash$left$.$K$\_\{$T$\}=1\mathrm{.}0\backslash$right$)\backslash ),$ Dry service conditions, S

$-$ Dead load $\backslash (=2\mathrm{.}0\backslash$mathrm$\{$kPa$\}\backslash )$ for Roof, Dead load $\backslash (=4\mathrm{.}8\backslash$mathrm$\{$kP$\}\backslash )$ actor $=$ Case $\backslash (1,$ K$\_\{$D$\}=1\mathrm{.}0\backslash )2\mathrm{.}4$ kPa in each floor, No live load at the roof level, Snow each Floor, Live load $=$

$($b$)$ Calculate the factored moment for the edge beam A$1-$B$1$ at the roof level. Use center to center column distance for the span of the A$1-$B$1$ beam.