Discussion of Principles of Structural Analysis and Design problems in preparation for Civil Engineering Licensure Examination.
Curated by: Engr. Harf Miranda (Sir Harf Engineering Tutorial) (160 videos)
Enrol to our Review Center: https://www.facebook.com/share/1AC24Wsb9v/?mibextid=wwXIfr SITUATION: A prestressed concrete beam is shown in the figure. Span, L = 10 m Midspan eccentricity, a = 250 mm Beam dimensions = 500 mm x 800 mm Initial prestressing force = 1950 kN (parabolic profile) Uniform superimposed service dead load = 24.8 kN/m Uniform service live load = 11.4 kN/m Concrete unit weight = 23.5 kN/m3 Losses at service loads = 8% 1. Determine the initial stress (MPa) at the bottom fiber at the supports. A. 4.875 (T) C. 4.875 (C) B. 4.485 (T) D. 4.485 (C) 2. Determine the final stress (MPa) at the bottom fiber at the midspan. A. 6.76 (C) C. 11.81 (C) B. 2.06 (T) D. 2.21 (C) 3. Determine the final stress (MPa) at the top fiber at L/4. A. 10.40 (C) C. 5.63 (T) B. 6.19 (C) D. 4.91 (T) 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