Given a simply supported reinforced concrete slab with the effective span lo=2.8 m. The slab is 90 mm thick and reinforced by $10@200 longitudinal bars. The material properties are f= 11.9 N/mm², f= 1.6 N/mm². fy=280 N/mm, and E, = 2.0 x 10 N/mm². Calculate the maximum load (per square meter) that the slab can sustain.

The reinforced concrete beam has the cross-sectional area shown in the figure with b =12 in., d=16 in., ? steel= 1.571 in.2, determine the largest bending moment that may be applied safely. Takethe elastic moduli ?steel=29(10^3) ksi and ?concrete= 3.6(10^3) ksi. The working stresses are2.39ksi for concrete and 22.145ksi for steel.

A reinforced concrete T-beam has the following properties: Flange width, bf = 1,350 mm Width of web, bw = 300 mm Gross depth, h = 500 mm Effective depth, d = 420 mm Concrete strength, f’c = 21 MPa Steel strength, fy = 415 MPa 10. If the beam is reinforced with 3-20-mm-diameter bars at the bottom (in single layer), determine the resulting depth of rectangular stress block at ultimate stage. = mm (2 decimal places) 11. What is the condition of failure? = (Balanced, Tension controlled, Compression controlled, Transition) 12. Calculate the design moment strength of a typical interior beam. = kN⋅m (whole number)