A beam is to be designed for loads causing a maximum factored shear of 60.0 kips, using concrete with fc′ = 5000 psi. Proceeding on the basis that the concrete dimensions will be determined by diagonal tension, select the appropriate width and effective depth a. for a beam in which no web reinforcement is to be used.
b. for a beam in which only the minimum web reinforcement is provided
c. for a beam in which web reinforcement provides shear strength Vs = 2Vc.

Follow the ACI Code requirements, and let d = 2b in each case. Calculations may be based on the more approximate value of Vc.