Figure $4($b$)$

Figure $4($a$)$ shows the side elevation and Figure $4(b)$ shows the front elevation of a "simple$-$joint" end$-$plate beam to column flange connection. The bolt connection is a non$-$preloaded type.

a$)$ Check the shear resistance of the bolt connection. Given fub $=800\frac{N}{m}{m}^2,yM2=1\mathrm{.}25,$ As $=245m{m}^2.$

$(5$ marks$)$

b$)50kN$ of shear force is applied on the beam. Using the same information given in $($a$),$ check if the shear resistance is sufficient.

$(5$ marks$)$