Example

Materials : $C\frac{20}{25}-BS420C$

Longitudinal reinforcements

$A_s=620$

$b_w=300mm$

$b=1000mm$

$h=530mm$

$hf=120mm$

$d^{\text{'}}=30mm$

$k_1=0,85$

$k_3=0,85$

${}_b=0\mathrm{.}0164(from$ table$)$

$d=530-30=500mm$

Example

Material coefficients

${}_{mc}$:$1\mathrm{.}5(Concrete)$

${}_{ms}$:$1,15(Steel)$

$E_s={2\mathrm{.}10}^5$MPa

Determine the Moment resisting Capacity of the flanged section

Materials: $C\frac{20}{25}-B420C$

Longitudinal reinforcements

$A_s=622$

$b_w=250mm$

$b=500mm$

$h=600mm$

$hf=120mm$

$d^{\text{'}}=30mm$

$k_1=0,85$

$k_3=0,85$

${}_b=0\mathrm{.}02293$

$d=600-30=570mm$