A rectangular post-tensioned prestressed beam has a width of 300mm, total depth of 600 mm, and a simply supported span of 12m. Grade 1860 stress relieved prestressing tendons are used with variable eccentricity. The total area of the tendons, subjected to an effective prestressing force of 637.5 KN, is equal to 650.3 sq.mm. Calculate and Draw the Tendon Profile. Use Eps = 186 MPa, fc’ = 35MPa, fci’ = 26MPa. R = 0.85 Assume that the maximum moment due to the uniformly distributed sustained service loads, including self weight, is 202.5 KN-m
A rectangular post-tensioned prestressed beam has a width of 300mm, total depth of 600 mm, and a simply supported span of 12m. Grade 1860 stress relieved prestressing tendons are used with variable eccentricity. The total area of the tendons, subjected to an effective prestressing force of 637.5 KN, is equal to 650.3 sq.mm. Calculate and Draw the Tendon Profile. Use Eps = 186 MPa, fc’ = 35MPa, fci’ = 26MPa. R = 0.85 Assume that the maximum moment due to the uniformly distributed sustained service loads, including self weight, is 202.5 KN-m
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A rectangular post-tensioned prestressed beam has a width of 300mm, total depth of 600 mm, and a simply supported span of 12m. Grade 1860 stress relieved prestressing tendons are used with variable eccentricity. The total area of the tendons, subjected to an effective prestressing force of 637.5 KN, is equal to 650.3 sq.mm. Calculate and Draw the Tendon Profile. Use Eps = 186 MPa, fc’ = 35MPa, fci’ = 26MPa. R = 0.85 Assume that the maximum moment due to the uniformly distributed sustained service loads, including self weight, is 202.5 KN-m.
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