PROBLEMS FOR SOLUTION

$5\mathrm{.}1.$ For the bean cross$-$section shown in Fig, $5\mathrm{.}33$ deternine whether the failure of the bean will be jnitiated by crushing of concrete or yielding of steel. Given:

$f_c^{\text{'}}=4000(27\mathrm{.}6$MPa$)$ for case $(a),A_s=10in.{?}^2$

$f_c^{\text{'}}=7000(48\mathrm{.}3$MPa$)$ for case $(b).A_s=5in.{?}^2$

$f_y=60,000(414$MPa$)$

Also determine whether the section satisfies ACl Code requirements$-$