Use f’c = 5,000 psi
Problem Statement: A singly reinforced rectangular beam is to be designed, with effective depth approximately 1.5 times the width, to carry a service live load of 2000 lb/ft in addition to its own weight, on a 24 ft simple span. The ACI Code load factors are to be applied as usual. With fy = 60,000 psi and fc’ = 5,000 psi, determine the required concrete dimensions, b, d, and h, and steel reinforcing bars
(a) for ? = 0.60 ?max and (b) for ? = ?0.005. Include a sketch of each cross-section drawn to scale. Allow for No. 4 stirrups. Comment on your results.