Question: Problem 4: The prestressed post tensioned beam with curved tendons and the cross section shown has span of 18 m, service live load moment

Problem 4: The prestressed post tensioned beam with curved tendons and the

Problem 4: The prestressed post tensioned beam with curved tendons and the cross section shown has span of 18 m, service live load moment is 648 kN.m, prestress force after transfer is (Po=1600 kN). Assume total losses of 15%. The F 1 prestressing cable has zero eccentricity at the ends. f'c = 40MPa, f'c = 30 MPa. Calculate : 1. The cracking moment. 9/18/2022 CGC 150 150 Dr. Ali R, Yousif Salahaddin University Hawler Prestressed Concrete 2. Stresses at top and bottom fibers at time of transfer, and at full service loads. 3. The ultimate moment. 18.0m 1-250- 1000 500 CGS 150 500 150 200 200 200 250 Cross-section at mid-span 600 200 Values in mm. 39

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