Q$.2(40\%)$

Use the limit state flexural strength to design joists of MGP$10($seasoned

Messmate$)$ for a floor system. The spacing between joists is $500$ mm center

to center and span for $4000$ mm between the centres of beam supports. The

location of the house in Adelaide. Plywood flooring is glued and nailed to

the compression edge of the joists $($continuous restraint$).$ The loadings are as

follow:

Dead load $1\mathrm{.}5k\frac{N}{m}$

Live load $(5$ days$)2\mathrm{.}5k\frac{N}{m}$

Note: assume the weight of joist is $0\mathrm{.}3k\frac{N}{m}.$