PROBLEM $2\mathrm{.}1$

A propped cantilever beam shown is to carry a uniform dead load of $35k\frac{N}{m}($including it's own weight$)$ and a uniform

live load of $55$ kN$/$m$.$ Design the bema using $25$mm top bars and $20$mm bottom bars. use d$=1\mathrm{.}5$b and a steel ration equal $()$ to $2\mathrm{.}0{}_{\text{m}\text{i}\text{n}}$ in determining the beam size. And use the following details: $f_c=24$ MPa, $fy=415$ MPa and concrete cover $is60mm$ from the centroid $of$ the bars and strirrups $of12mm.$ Use $2015$ Provisions and load combination $1\mathrm{.}2$DL$+1\mathrm{.}6$LL