A prestressed concrete beam of section 120mm wide by 300mm deep is used over an effective span of 6m to support a uniformly distributed load of 4 kN/m, which includes the self - weight of the beam. The beam is prestressed by a straight cable carrying a force of 180 kN and located at an eccentricity of 50mm. a. Determine the resultant top fiber stress at the quarter span of the beam. b. Determine the resultant bottom fiber stress at the quarter span of the beam.

A prestressed concrete beam of section 120mm wide by 300mm deep is used over an effective span of 6m to support a uniformly distributed load of 4 kN/m, which includes the self - weight of the beam. The beam is prestressed by a straight cable carrying a force of 180 kN and located at an eccentricity of 50mm. a. Determine the resultant top fiber stress at the quarter span of the beam. b. Determine the resultant bottom fiber stress at the quarter span of the beam.

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter15: Retaining Walls, Braced Cuts, And Sheet Pile Walls

Section: Chapter Questions

Problem 15.21P: Determine the factor of safety against bottom heave for the braced cut described in Problem 15.18....

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