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Question 3 A reinforced concrete beam is subjected to w =90 kN/m load as shown below. Knowing the modulus of elasticity of 25 GPa for the concrete and 200GPa for the steel with a diameter bar of 16 mm, W kN/m a A L = 4m (a) UDL on Concrete beam 450 mm 250 mm (b) Section a-a a) Determine the maximum bending moment kNm B mm diameter 50 mm
2101ENG- Assignment 3-2022 26/05/2022, 14:36 b) Calculate the moment o inertia after the steel transformed. Ixx = x 106 mm4 c) Find the neutral axis (x) from the top of concrete beam d) Determine the stress in the steel = MPa S e) Determine the maximum stress in the concrete. MPa