2. Design of reinforcing for singly-reinforced concrete beams. Design a rectangular reinforced concrete beam to resist a total design moment, Mu of 140k-ft (This includes the moment due to self-weight of beam). Architectural considerations require that the width (b) be 12in. and the overall depth(h) be 18in. and clear cover is 1.5in. Use f'c=3000psi and fy=60,000 psi. Sketch your design.

I need the answer to the question in reinforced concrete

A reinforced concrete beam that is 375 mm wide and 500mm deep must resist a service live load moment of 250 kN-m and a service dead load moment of 150 kN-m. Use f'c-21 MPa and fy=415 MPa. The effective concrete cover is 65mm (to the centroid of reinforcements). 1. Determine the area of compression steel reinforcement (If required. Answer O if not) in mm² 2. Determine the minimum number of 25 mm diameter bars to be provided to satisfy the demand ultimate moment 3. Determine the maximum number of 25 mm diameter bars to be provided to have a tension controlled section Answer 1: 2403.21 correct answer: Answer 2: 9.00 Answer 3: 8.00

Design Problem 5 Determine the spacing of 10 mm U Stirrups required for the beam of design problem 4.0 at Ls = 1.10 m from the support if fpu is 1,724 MPa for the prestressing steel and fy for the stirrups is 276 MPa. Aps = 945.16 mm² (Use NSCP Equation, Table 409.6.3.3e)