2. A rectangular beam, 400 x 600 mm gross dimension, is cast using a concrete strength of fc 30 MPa, reinforced with 5-25 mm diameter steel bar at the effective depth of 500 mm. If is subjected to a moment, M 130 kN-m. Determine the following: Magnitude of the bending moment that cracks the singly-reinforced beam section. (10 pts) b. For the computed cracking moment, determine the maximum compressive stress in the concrete and the stress in the tension steel. (10 pts) c. The bending stress in the steel reinforcement and the maximum concrete compressive stress (10 pts) d. The elastic bending strength of the section, if the allowable stress in the reinforcing bars is fs 170 MPa. (10 pts) e. If the beam is under-reinforced or over-reinforced under elastic bending? (5 pts) f. The maximum uniform load that the beam can carry on a simple span of 6m (10 pts) a.