A reinforced concrete beam that is 375 mm wide and 500mm deep must resist a service live load moment of 250 kN-m and a service dead load moment of 150 kN-m. Use f'c-21 MPa ar fy=415 MPa. The effective concrete cover is 65mm (to the centroid of reinforcements). 1. Determine the area of compression steel reinforcement (If required. Answer O if not) in mm 2. Determine the minimum number of 25 mm diameter bars to be provided to satisfy the demand ultimate moment

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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A reinforced concrete beam that is 375 mm wide and 500mm deep must resist a service live
load moment of 250 kN-m and a service dead load moment of 150 kN-m. Use f'c-21 MPa and
fy=415 MPa. The effective concrete cover is 65mm (to the centroid of reinforcements).
1. Determine the area of compression steel reinforcement (If required. Answer O if not) in mm²
2. Determine the minimum number of 25 mm diameter bars to be provided to satisfy the
demand ultimate moment
3. Determine the maximum number of 25 mm diameter bars to be provided to have a tension
controlled section
Answer 1:
2403.21
correct answer:
Answer 2:
9.00
Answer 3:
8.00
Transcribed Image Text:A reinforced concrete beam that is 375 mm wide and 500mm deep must resist a service live load moment of 250 kN-m and a service dead load moment of 150 kN-m. Use f'c-21 MPa and fy=415 MPa. The effective concrete cover is 65mm (to the centroid of reinforcements). 1. Determine the area of compression steel reinforcement (If required. Answer O if not) in mm² 2. Determine the minimum number of 25 mm diameter bars to be provided to satisfy the demand ultimate moment 3. Determine the maximum number of 25 mm diameter bars to be provided to have a tension controlled section Answer 1: 2403.21 correct answer: Answer 2: 9.00 Answer 3: 8.00
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