n a slab-floor system with the total depth of 22 in., the flange effective width was determined to  be 40 in. The beams have a web width of 14 in. and the slab thickness is 3 in. Design the  reinforcement for a typical interior beam if the factored applied moment, Mu is 9500 k-in. f’c = 6 ksi and fy = 80 ksi. Draw the detailing.

1. A rectangular beam section is 10 in. wide and has a structural depth of 13.5 in. Reinforcement consists of two No. 8 bars. Given that the strength normalweight concrete is 4000 psi and there is NO shear reinforcement in the section, determine the nominal shear capacity allowed by the ACI Code. (5 pt) (Hint: No web reinforcement, so Vc = 8λ¸λ(pw)¹/³¸ √ Fcbw d cbwd shall be used).

QUESTION 1A concrete floor slab measuring 6 m x 3 m is simply supported on one side brick load-bearing walls along the 6 m sides. The concrete slab is 200 mm thick and reinforced at the bottom as follows. a. Main reinforcement (short span i.e the bars are parallel to the short span), Y12, shape code 34 @ 125 mm centre to centre,b. Distribution reinforcement (long-span i.e the bars are parallel to the long span), Y 10, shape code 20 @ 300 mm centre to centre,c. Concrete cover, 30mm,d. Concrete strength, 40MPa. Draw the reinforcement layout for this slab, in plan and section, indicating all thereinforcement and necessary information required by the contractor. Calculate and indicate the number of bars required on your drawing. You do not need to calculate the bar lengths and the curtailment. Neat drawing please