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Concrete Bridges 2017-07-14T14:20:19+00:00
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
  • Full Analysis and full Code Check Capability With All AASHTO Provisions
  • Rapid Processing under Windows
  • Most Design Parameters May Be Overriden by User
  • Generalized AASHTO and Truck Live Loading
  • Generalized Truck Configurations Specified by User
  • Generalized Girder Configurations
  • Generalized Tendon Configurations
  • Generalized Dead Load Configurations
  • Prestressed Beam Composite or Non-composite
  • Analysis Based upon the Stiffness Method
  • Prismatic Sections
  • AASHTO Prestress Losses
  • Hinges for Construction Stages
  • AASHTO Sections (Built-in)
  • Completely Modular and Easily Modifiable System
  • Indexed Tabular Output

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