PSAD Refresher Series

Currently Playing: PSAD Refresher 109: Stresses in Prestressed Concrete with Varying Tendon Placement

Enrol to our Review Center: https://www.facebook.com/share/1AC24Wsb9v/?mibextid=wwXIfr SITUATION: A beam with b = 250 mm and depth h = 500 mm is to be prestressed. Considering 15% loss, compute the value of the initial prestressing force P and eccentricity e: 1. If the compressive stress is 12 MPa. A. 2941 kN, e=83 mm C. 1882 kN, e=0 mm B. 2550 kN, e=83 mm D. 1764 kN, e=0 mm 2. If the compressive stress at the top fiber is 16 MPa and zero stress at the bottom fiber. A. 1000 kN, e=83 mm above cg. C. 1000 kN, e=83 mm below cg. B. 1176 kN, e=83 mm above cg. D. 1176 kN, e=83 mm below cg. 3. If the compressive stress at the bottom is 12 MPa and the tensile stress at the top fiber is 2 MPa. A. 734 kN, e=117 mm above c.g. C. 734 kN, e=117 mm below c.g. B. 1026 kN, e=60 mm above c.g. D. 1026 kN, e=60 mm below c.g. Thanks for watching! Comment for questions and suggestions for future lecture in this series. Subscribe and hit the bell button to be notified for future posts. #civilengineering #boardexam #engineering #structuralanalysis #structuralengineering #CivilEngineeringLicensureExamination #PRC #PSAD #theoryofstructures #cele #strengthofmaterials #mechanicsofmaterials #staticsofrigidbodies #steeldesign #compressionmember #trusses #friction #refresher #PSADRefresher #SHET