Question

Determine the largest allowable bending moment for a rectangular reinforced concrete beam having the width b = 200 mm, total height h = 375 mm and the distance from the bottom surface of the beam to the centre line of steel bars = 75 mm. Use the total area of steel As = 1360 mm2, modulus of elasticity of concrete = 30 GPa, modulus of elasticity of steel = 210 GPa, allowable compressive stress for concrete = 15 MPa and allowable tensile stress for steel = 150 MPa.

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Answer 1

so the max allowable bending moment is 516.0078 KN-m.