The Figure below shows a plan for a flooring system consists of $9$ panels resting on beams. The interior and exterior beams width and height are; $b=300mm$ and $h=500mm.$ According to the ACI $318$ Code provisions, design slab $4($S$4)$ and draw sketches showing dimensions and reinforcement details.

Use the following design data:

Steel tensile strength fy $=350$MPa

Concrete compression strength $f\text{'}c=28$MPa

Live load $=3\mathrm{.}5k\frac{N}{m^2}$

Finishing load $=1\mathrm{.}9k\frac{N}{m^2}$