A prestressed beam has a cross section of 250 mm x 500 mm and has a simple span of 6 m. The tendons are placed 70 mm above the bottom of the beam. The wires used are stress relieved tendons with fpu= 1350 MPa and fpe= 760 MPa, fc'=35 MPa. The prestressed beam is not to be grouted after application of the prestress. Aps= 1000 sq. mm Compute the stress in prestressed reinforcement at nominal strength. Compute the ultimate moment capacity of the prestressed beam. Compute the safe live load that the prestressed beam could carry.
A prestressed beam has a cross section of 250 mm x 500 mm and has a simple span of 6 m. The tendons are placed 70 mm above the bottom of the beam. The wires used are stress relieved tendons with fpu= 1350 MPa and fpe= 760 MPa, fc'=35 MPa. The prestressed beam is not to be grouted after application of the prestress. Aps= 1000 sq. mm Compute the stress in prestressed reinforcement at nominal strength. Compute the ultimate moment capacity of the prestressed beam. Compute the safe live load that the prestressed beam could carry.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A prestressed beam has a cross section of 250 mm x 500 mm and has a simple span of 6 m. The tendons are placed 70 mm above the bottom of the beam. The wires used are stress relieved tendons with fpu= 1350 MPa and fpe= 760 MPa, fc'=35 MPa. The prestressed beam is not to be grouted after application of the prestress. Aps= 1000 sq. mm
- Compute the stress in prestressed reinforcement at nominal strength.
- Compute the ultimate moment capacity of the prestressed beam.
- Compute the safe live load that the prestressed beam could carry.
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