The following beam with the presented cross section are given;

Both supports are fixed

Control the presented section for the given loads based on TS $500.$

${}_{mc}=1\mathrm{.}5$ and ${}_{ms}=1\mathrm{.}15$

$bw=40cm$

$h=75cm$

$d=70cm$

Material: C$45/$S$420$

$D.L=20k\frac{N}{m}$

$L.L=16k\frac{N}{m}$

$As=520$