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Design Problem 4 The pretensioned rectangular beam shown in Figure 4.0 has straight cables with initial stress of 1800 MPa and final stresses after losses of 1,500 MPa. Determine the deflkection at the beam centerline immediately after the cables are cut. E₁ = 27,000 MPa. Assume the concrete is uncracked. The area of prestressing steel is Aps = 900 mm². DL (beam weight only) = LL = 11.68 kN/m d' = 400 mm h = 500 mm Aps Cc = 100 mm bw = 300 mm = 9.00 m Figure 4.0

Design Problem 4 The pretensioned rectangular beam shown in Figure 4.0 has straight cables with initial stress of 1800 MPa and final stresses after losses of 1,500 MPa. Determine the deflkection at the beam centerline immediately after the cables are cut. E₁ = 27,000 MPa. Assume the concrete is uncracked. The area of prestressing steel is Aps = 900 mm². DL (beam weight only) = LL = 11.68 kN/m d' = 400 mm h = 500 mm Aps Cc = 100 mm bw = 300 mm = 9.00 m Figure 4.0

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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Design Problem 4 The pretensioned rectangular beam shown in Figure 4.0 has straight cables with initial stress of 1800 MPa and final stresses after losses of 1,500 MPa. Determine the deflkection at the beam centerline immediately after the cables are cut. E₁ = 27,000 MPa. Assume the concrete is uncracked. The area of prestressing steel is Aps = 900 mm². DL (beam weight only) = LL = 11.68 kN/m d' = 400 mm h = 500 mm Aps Cc = 100 mm bw = 300 mm = 9.00 m Figure 4.0
Transcribed Image Text:Design Problem 4 The pretensioned rectangular beam shown in Figure 4.0 has straight cables with initial stress of 1800 MPa and final stresses after losses of 1,500 MPa. Determine the deflkection at the beam centerline immediately after the cables are cut. E₁ = 27,000 MPa. Assume the concrete is uncracked. The area of prestressing steel is Aps = 900 mm². DL (beam weight only) = LL = 11.68 kN/m d' = 400 mm h = 500 mm Aps Cc = 100 mm bw = 300 mm = 9.00 m Figure 4.0
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