Design of Prestressed Concrete Bridges According to AASHTO LRFD Bridge Design Specifications

One-day Course and Seminar by Prof. George Morcous, Ph.D, P.E

Design of Prestressed Concrete Girder Bridges

 According to AASHTO LRFD Bridge Design Specifications, 8th Edition, 2017


Course Outline


Design Philosophy and Loadings (AASHTO 1.3, 3.4, 3.5, and 3.6)


  • Service, Strength, Fatigue, and Extreme Event Limit States
  • Load Factors and Combinations
  • Permanent and Live Loads Structural Analysis (AASHTO 4.2)
  • Equivalent Strip Method for Deck
  • Distribution Factors for Girders Material Properties (AASHTO 5.4 and 5.5)
  • Mechanical and Time-Dependent Properties of Concrete
  • Properties of Reinforcing Steel, Welded Wire Reinforcement, and Prestressed Steel Design for Flexure and Axial Load Effects-B Regions (AASHTO 6)
  • Design Assumptions
  • Design of Flexural Members
  • Design of Compression Members
  • Deformations
  • Crack Control


Design for Shear and Torsion- B-Regions (AASHTO 5.7)


  • Design Procedures and Requirements
  • Sectional Design Model
  • Combined Shear and Torsion
  • Interface Shear Transfer – Shear Friction Design for D-Regions (AASHTO 8)
  • Strut-and-Tie Method
  • General Zone of Post-Tensioning Anchorage Prestressed Concrete (AASHTO 9)
  • Girder Production, Handling, and Transportation
  • Types of Cracks and Stress Limits
  • Prestress Losses (Approximate and Refined Methods)
  • Primary and Secondary Moments


Dr. George Morcous is a professor at Durham School of Architectural Engineering and Construction at the University of Nebraska-Lincoln since January 2005. He has a B.S. and M.S. degrees in Civil Engineering from Cairo University-Egypt. He earned his doctorate degree from Concordia University – Canada in 2000. He is currently a registered professional engineer in the State of Nebraska. His research and teaching interests include design and construction of precast prestressed concrete structures and bridge engineering. He has two patents and over 150 publications.