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25:41
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PROBLEM 2: A reinforced concrete beam has a simple span of 4.5 m and carries a dead load, including self-weight of 20 kN/m and a live load of 35 kN/m. Steel covering is 75 mm. Using fc' = 28 MPa and fy = 415 MPa. 1. What is the maximum moment due to the factored loads? 2. What should be the beam width if p = 0.50pmax and d = 1.5b? 3. What is the total area of steel required?
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