Question: A singly reinforced concrete rectangular section is shown in Figure Al with an effective depth, d = 500mm. Given fo = 40MPa, fsy = 500MPa,

A singly reinforced concrete rectangular section is shown in Figure Al with an effective depth, d = 500mm. Given fo = 40MPa, fsy = 500MPa, Es = 200,000MPa. Determine the area of tensile steel reinforcement, A, needed if the engineer wants to design a balanced section. (15 Marks) Determine the ultimate moment capacity of this section using the limiting concrete strain criterion of 0.003 if it is a balanced section. (10 Marks) 300 mm - 500 mm 600 mm A Figure A1: Concrete rectangular

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