ft-kip. f'e = 4,000 psi and fy = 60 ksi. Note that the beam self weight is already included in the dead load moment. Assume that c = 0.6 cb for the singly-reinforced part of the section (for your initial guess). Hint: first calculate the nominal moment resisted by the concrete section without compression steel. Check the strength only.

Fig: 1

Fig: 2