$**$ use Australian standards AS $1720\mathrm{.}1***$

Figure shows a floor system of a warehouse made up of bearers and floor joists in a grid form.

The joists are nailed with the bearer. The warehouse is in Cairns, QL$.$ The floor is subjected to an

unfactored permanent load of $1\mathrm{.}0$ kPa and unfactored imposed load of $2\mathrm{.}0$ kPa arising from

infrequent crowd load. Due to cyclone, there is wind load action reversal of $2$ kN$/$m$.$ The bearers

are made from seasoned Kapur timber of strength grade F$14$ with cross section $290$ mm x $70$ mm$.$

The warehouse internal environment will have $20\%$ moisture content throughout the year.

Show that the chosen section will have required bending capacity to resist the design bending

moment.

Use Australian Standards AS $1720\mathrm{.}12010$