LARS Bridge has a standard prestressed concrete section library. This library is accessed in the same manner as the standard steel section library. Four different beam shapes are available in the library. They are:
1) (B)ox beams which may be solid or contain voids
2) (D)ouble tees
3) I-(G)irders
4) Bulb (T)ees
The shapes are organized in the library based on the two letter State abbreviation and AASHTO girder types use the designation “AA”. The prestressing steel definitions are defined in the same manner as for non-standard sections.
This document contains instructions on how to select the prestressed concrete standard section library.
2. Select “Std Shape” from the Element Type dropdown
3. Select a standard section. Additional sections are found by using the scroll bar. The default standard section is AASHTO Girder Type 1.
4. The section properties for the section are displayed, but grayed out since no changes can be made to the shape at runtime in LARS Bridge.
5. Profile Screen showing standard section selection.