Check whether the composite section can withstand a design sagging moment equal to $680$ kNm that results from combining permanent and variable load. Assume a design strength of $\backslash (\backslash$mathrm$\{$f$\}\_\{\backslash$mathrm$\{$ck$\}\}=35\backslash$mathrm$\{$~N$\}/\backslash$mathrm$\{$mm$\}^\{2\}\backslash )$ for the concrete slab and that the transverse beams are placed in parallel @$4$m $($out of plane direction$).$

Use the steel section that you designed when answering Q$2$a and note that the thickness of the concrete slab equals $200$ mm $.$

$($e$)$ Determine the number of connectors required to ensure the transference of horizontal loads at the interphase between the steel beam and slab. Use stud connector of $16$ mm diameter, $100$ mm height, and $\backslash (\backslash$mathrm$\{$f$\}\_\{\backslash$mathrm$\{$u$\}\}=500\backslash$mathrm$\{$~N$\}/\backslash$mathrm$\{$mm$\}^\{2\}\backslash ).$ Follow the guidance provided by the Eurocode.

$\backslash$begin$\{$tabular$\}\{|$c$|$c$|$c$|$c$|$c$|$c$|$c$|$c$|$c$|$c$|$c$|\}$

$\backslash$hline $\backslash$multicolumn$\{3\}\{|$c$|\}\{$Area cm $\backslash (\{\}^\{2\}\backslash )\}$ & $\backslash$multicolumn$\{6\}\{|$c$|\}\{$Coordinates $($m$)\}$ & Rad & Grade $\backslash \backslash$

$\backslash$hline A$1$ & A$2$ & A$3$ & x$1$ & X$2$ & X$3$ & Y$1$ & Y$2$ & Y$3$ & $0$ & $\backslash \backslash$

$\backslash$hline $4\mathrm{.}927$ & $4\mathrm{.}508$ & $1\mathrm{.}028$ & $0\mathrm{.}000$ & $2\mathrm{.}898$ & $9\mathrm{.}008$ & $0\mathrm{.}000$ & $3\mathrm{.}903$ & $\backslash (-0\mathrm{.}464\backslash )$ & $0\mathrm{.}352$ & S$235\backslash \backslash$

$\backslash$hline

$\backslash$end$\{$tabular$\}$

Furthermore, they think that the design of the timber strut should consider the potential impact of a vehicle at $1$ m from its base. The impact would induce a design load of $60$ kN $.$

Design a solid timber element to support the load configuration shown in Fig. Q$2\mathrm{.}2,$ where the strut appears rotated $\backslash (90^\{\backslash$circ$\}\backslash )$ for easy display.

Br

$($d$)$ Once the concrete slab casts and the building opens for service $($stage $2)$ we

$[15]$

will see the load confiauration shown in Fia. Q$2\mathrm{.}3.$

Fig. Q$2\mathrm{.}3$

In this stage transverse beams will span $8$ m working as simply supported elements. They should resist the permanent loads considered in stage $1$ in addition to asphalt and live load.