Q$3.($CLO$2)(4$ Marks$)$ A simply supported, rectangular, reinforced concrete beam $300$ mm wide

and having an effective depth of $500$ mm caries a total factored ultimate load of $70k\frac{N}{m}$ on a $9\mathrm{.}0-$

m clear span. The given load includes the dead load of the beam. Design the web reinforcement

$($stirrups$).$ The steel grade $=420$MPa, and compressive strength of concrete $=21$MPa. Use #$10$

U stirrups.