Dimensions:

Beam, $bh=350mm450mm$

$L1=L2=6m,L3=7m,S=2\mathrm{.}5m$

Use $12mm$ diameter for main bars and $10mm$ diameter for temperature

bars

Loads :

Dead load $=5$KPa

Live Load $=3\mathrm{.}6$Kpa

Concrete Strength, $f^{\text{'}}C=27\mathrm{.}5$MPa

Use Grade $60$ bars, $fy=414$MPa

Unit weight of concrete $Y_C=23\mathrm{.}5K\frac{N}{m^3}$

Load Combination: $1\mathrm{.}2DL+1\mathrm{.}6LL$