The following beam splices are connected at mid$-$span using two steel$-$timber$-$steel bolted

joints located at the top and the bottom of the beam $($and a hidden shear key at the centre

to transfer the shear force$).$ Assuming a dry Radiata Pine timber with a thickness of $40mm,$

what will be the required number of M$16$ bolts $($based on current code method$)$ to resist the

induced bending moment as a result of the $20k\frac{N}{m}$ UDL and $30kN$ point loads under load

combination $1\mathrm{.}2G+1\mathrm{.}5Q?$