A floor systtem consist of a 75 mm concrete slab supported by continuous T beams with a span of 4.3 m spaced at 3 m on center. The beams have a web width, bw and effective depth, d. Calculate the necessary reinforcement for a typical interior beam if the applied factored load is 574 kN-m.
Solve the following given
a. ) bw = 400 mm; d = 500 mm; fy = 420 MPa; fc' = 28 MPa
b. ) bw = 350 mm; d = 470 mm; fy = 420 MPa; fc' = 21 MPa