Computer · Prestressed Concrete
A post-tensioned prestressed concrete beam is stressed by three cables, each with a cross-sectional area of 50 mm2 with an initial stress of 900 MPa. If all three cables are straight and located at an eccentricity of 50 mm, and assuming a modular ratio (m) = 6 and stress in concrete at the level of steel (fc) = 5 MPa, what will be the loss of stress in the cables due to elastic shortening if all cables are simultaneously tensioned and anchored?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 230 MPa
- 360 MPa
- 490 MPa
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