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Engineering
Civil Engineering
450 100 800 100 150

450 100 800 100 150

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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The prestress T-beam section has a simple span of 6 m. The tendons is subjected to initial stress of 900 MPa with an area of 800 mm. Assuming a loss of stress of 18%. no tension will be acting at the bottom and maximum stress of 9.5 MPa at the top should not exceed. a) Determine the stress at the bottom due to the final prestressing force alone. b) Determine the safe moment that the beam could carry based on the allowable stresses. (kN- m) c) Determine the sate uniform live load that the beam could carry if the unit weight of concrete 24 kN/m°. (N/m) d) Determine the stress at the top due to the final prestressing force alone. (MPa)
Transcribed Image Text:The prestress T-beam section has a simple span of 6 m. The tendons is subjected to initial stress of 900 MPa with an area of 800 mm. Assuming a loss of stress of 18%. no tension will be acting at the bottom and maximum stress of 9.5 MPa at the top should not exceed. a) Determine the stress at the bottom due to the final prestressing force alone. b) Determine the safe moment that the beam could carry based on the allowable stresses. (kN- m) c) Determine the sate uniform live load that the beam could carry if the unit weight of concrete 24 kN/m°. (N/m) d) Determine the stress at the top due to the final prestressing force alone. (MPa)
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