Question No$.1(20$ Marks$)$

Select economic W$200$ and W$530$ sections for beams B$3$ and G$4$ respectively, which support a typical floor in multi$-$bay single$-$storey building, as shown in the plan view $($Figure $1).$ Specified loads are: dead load $\backslash (=2\mathrm{.}0\backslash$mathrm$\{$kPa$\}\backslash )($including the self$-$weight of the beams$),$ live load: $4\mathrm{.}0$ kPa $,$ and snow load $\backslash (=1\mathrm{.}0\backslash$mathrm$\{$kPa$\}\backslash ).$ Assume full lateral supports for the beams. Assume lateral support for girders only at their ends and where the beams are connected to them. Ignore the self$-$weight of the girders. Check your deflection using a limit of $\backslash (\backslash$mathrm$\{$L$\}/360\backslash )$ under live load only. Additional information required:

$-$ The steel to be used is ASTM A$992(\backslash (\backslash$left$.\backslash$mathrm$\{$F$\}\_\{\backslash$mathrm$\{$y$\}\}=345\backslash$mathrm$\{$MPa$\}\backslash$right$)\backslash )$

$-$ The selections should satisfy CSA S$16-19$

$-$ All beams are connected by simple shear connections

$-$ All girders are connected to the columns for shear only Figure $1$