For the cross section shown in Q$2,$ determine the service level moment capacity. The same cross sectional and material properties apply. The allowable stress for concrete is$,$ and the allowable stress for steel is $30000$ psi. $(10$pt$)$

Given Properties

$E_s$:$=29000000*,f_c^{\text{'}}$:$=4000*$

$f_y$:$=60000*,b$:$=36in$

$h$:$=24in$

Tips: Service level moment implies that none of the compressive or tensile zone is failed even though the cross section can have cracks. That is the reason why the allowable stress has been used, not the ultimate$/$yield stress.

The RC section will be cracked, but the maximum compressive stress in concrete will be smaller than the allowable stress, and the maximum tensile stress in steel will also be smaller than the respective allowable stress.