A simply supported rectangular beam of length 6.45m has a width of 437.5mm and an effective depth of692.5mm. The beam is to be reinforced using 12 mm bars. The beam supports service dead loads of31 kN/m and 39.5kN/m., respectively. f'c = 28fy = 4201. Calculate the ultimate moment capacity of the beam.2. Calculate the height of the equivalent stress block.3. Determine the number of bars required for this beam

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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A simply supported rectangular beam of length 6.45m has a width of 437.5mm and an effective depth of
692.5mm. The beam is to be reinforced using 12 mm bars. The beam supports service dead loads of
31 kN/m and 39.5kN/m., respectively. 
f'c = 28
fy = 420
1. Calculate the ultimate moment capacity of the beam.
2. Calculate the height of the equivalent stress block.
3. Determine the number of bars required for this beam

Expert Solution
Step 1

Given data:-

Length of rectangular beam,  L=6.45 m

Width of rectangular beam, b=437.5 mm

Effective depth of the beam, d=692.5 mm

Diameter of bars, D=12 mm

Beam supports service dead loads of 31 kN/m and 39.5 kN/m

f'c=28 MPafy=420 MPa

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