Problem #$10$

Compute the nominal moment capacity, $M_n,$ and the associated strain in the tensile reinforcement, ${}_t,$ for the

reinforcement conditions presented in $($a$)$ and $($b$).$ The concrete compressive strength, $f_c^{\text{'}},$ is $5000$ psi $,$ and

steel yield strength, $f_y,$ is $60$ ksi $.$ Assume for both cases that the section is ductile.

$($a$)$ omit the $2-$#$11$ bars

$($b$)$ include the $2-$#$11$ bars