Question$-1$: $($on balanced beam section$)$

Obtain the bending moment capacity $M_{rb},$ and the required reinforcement $A_{s,b}$

for the balanced beam section given in the figure using equilibrium equations

and assuming equivalent stress distribution for concrete. $($dimensions are

in $mm)$

Ju Materials: C$40/$S$420$ Concrete cover: $d^{\text{'}}=25mm$

a$)$ Obtain the design yield strain

of steel.

b$)$ Calculate the neutral axis depth of balanced beam.

d$)$ Determine the amount of steel required to create the balanced condition.

c$)$ Calculate the bending moment capacity of balanced beam section.

e$)$ Determine the maximum reinforcement area that can be used in this section.