Question: A rectangular reinforced concrete beam has a width of 4 5 0 mm and an effective depth of 7 5 0 mm . The beam

A rectangular reinforced concrete beam has a width of 450 mm and an effective depth of 750 mm. The beam is reinforced with 8-28 mm diameter tension bars. Concrete strength is fc =21 MPa and steel yield strength is fy =275 MPa.
14. Solve the steel ratio.
15. Solve the depth of the rectangular compression stress block.
16. Solve the ultimate moment capacity of the beam.

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