Precast/Prestressed Girder Help

Program Boundaries

The following is a list of the boundaries and conventions used in Precast/Prestressed Girder.

  • Flared girder option is only available for I-girders, box-beams and U-beams.
  • Beam moment of inertia must be constant within a span, e.g., no change in beam properties along the span.
  • Topping (slab) thickness must be the same for all spans and within a span.
  • All beams must be the same type but may be different sizes (e.g., you cannot use AASHTO I-beams and box beams in the same span but you can use various sizes of AASHTO I-beams in the same span).
  • Maximum number of axles that can be defined for a truck is 20.
  • No load rating in Canada version.
  • Deck slab design not available in Canada version.
  • Width of bridge must be constant in all spans when flared girder option is not used.
  • Dynamic load allowance factor is a user input value, set to 1.3 as default.