Concrete Bridges
ABSTRACT: The prestressed precast concrete girder analysis and design program, PBeam, is a submodule of the popular MERLIN-DASH program and will perform a complete analysis and code check of simple-span and multi-span prestressed highway bridges, in accordance with the latest AASHTO Standard and LRFD specifications. The PBeam design system contains features generalized to a level which allows universal usage. The program is accessed through a user-friendly preprocessor for data preparation and executed by using the latest numerical analysis techniques to accommodate general usage of strand patterns, arbitrary loadings, and user-defined girder members. The program will compute and print the results in tabular form for any defined points along the span for the following: Section properties for composite and non-composite; dead load and live load reactions; shears, moments, and displacements; stresses for various construction stages; prestressing losses and forces; ultimate moments provided and required; and cracking moments.
- Summary of General Features:
- Rapid Processing under Windows
- Generalized Girder Configurations
- Generalized Tendon Configurations
- Generalized Dead Load Configurations
- Generalized AASHTO and Truck Live Loading
- Generalized Truck Configurations Specified by User
- Most Design Parameters May Be Overriden by User
- Full Analysis and full Code Check Capability With All AASHTO Provisions
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- Prismatic Sections
- Indexed Tabular Output
- AASHTO Prestress Losses
- AASHTO Sections (Built-in)
- Hinges for Construction Stages
- Analysis Based upon the Stiffness Method
- Prestressed Beam Composite or Non-composite
- Completely Modular and Easily Modifiable System
Structural Configuration Summary
- Simple Spans (Singly, or in Series)
- Continuous Spans
- Hinges (Moment Release) at Any Location
- Prismatic or Stepped Prismatic
- Standard AASHTO Section
- AASHTO Lookalike Section
- Bulbtee Section
- Slab Section
- Box Section
