Exercise $5.$ Design the necessary shear reinforcement for a simply supported beam $4\mathrm{.}2$ m long. The beam receives a uniform factored load of $15,300$ kg$/$m $($including self$-$weight$)$ and a concentrated factored load at the center of $11,020$ kg$.$ The beam has a section b x d $=35$ x $40$ cm and is reinforced by flexure with $4$ #$8$ rods. Use $1=280$kg$/$cm$\text{'}$y f $=4200$kg$/$cm$/.$Answer in kg$/$cm$2$