Calculate the required steel area for a reinforced concrete T-beam with an effective flange width of 1200 mm and a slab thickness of 100 mm. The beam is to carry an ultimate moment of 1300 kN-m. The width of the web is 300 mm and the effective depth is 550 mm. Assume f’c = 28 MPa and fy = 400 MPa * a. 7772 mm² b. 8256 mm² c. 7932 mm² d. 7232 mm²

Structural Analysis
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Chapter2: Loads On Structures
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Calculate the required steel area for a reinforced concrete T-beam with an effective flange width of 1200 mm and a slab thickness of 100 mm. The beam is to carry an ultimate moment of 1300 kN-m. The width of the web is 300 mm and the effective depth is 550 mm. Assume f’c = 28 MPa and fy = 400 MPa *
 
a. 7772 mm²
b. 8256 mm²
c. 7932 mm²
d. 7232 mm²
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