Software details, features and how to purchase

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WinABUD designs or checks a reinforced concrete abutment using the 1996 AASHTO with Interims and Revisions by Caltrans."(the code) of the California Department of Transportation. The abutment may be a spread footing (with optional key) or multiple pile footing. Service load Design (SLD) or Load Factor Design (LFD) specifications may be used. The abutment is investigated for several group loads. The group loads are divided into separate load cases.

THE FOOTING is assumed to be infinitely rigid and the pile loads and footing pressures are calculated from static equations of equilibrium. for spread footings, WinABUD considers uplift and calculates a line of zero pressure (neutral axis), in addition to computing factors-of-safety for sliding and overturning.

STEEL REINFORCEMENT requirements are calculated at 5 locations: backwall at the seat level, stem at top of footing, top of footing, bottom of footing on the heel side, and bottom of footing on the toe side.

THE SLD option is based on assumptions outlined in Article 8.15 of the code. The LFD option is based on the assumptions outlined in Article 8.16

INPUT PARAMETERS to WinABUD include the following:
  • Material data
  • Backfill and foundation soil data
  • Abutment dimensions
  • wingwall data
  • footing data
  • Pile data
  • Rebar data
  • Load data

A table containing the area of steel required at the 3 locations based on crack control, factored moment, 1.2 times the cracking moment, 1/3 greater than required by analysis, a max. bar spacing of 18 in., and .75 times the balanced steel ratio is provided.

A table containing controlling area of steel at each bar location is printed. The table indicates the controlling load type, applied moment, neutral axis location, effective depth, required steel area, bar size, bar spacing and number of bars.

Please send all inquires to Koung Thao at

WinABUD Features

  • Window Graphical User Interface (GUI)
  • Design or Check Abutments
  • 1996 AASHTO with Interims and Revisions by Caltrans
  • English or Metric Capability
  • Service Load or Load Factor Deisgn
  • High Cantilever or Short Seat Type Abutments
  • Pile Footing or Spread Footing (With Optional Key)
  • Group Load Analysis Capability
  • Reinforcement Requirements Calculated at Five Locations
  • Pile Layout, Elevation & Plan Plot

Our Software Selection


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  • WinABUD

    WinABUD designs or checks a reinforced concrete abutment using the 1996 AASHTO with Interims and Revisions by Caltrans.

  • WinRECOL

    WinRECOL analyzes, designs or checks a reinforced concrete columns.

  • WinFAD

    WinFAD is a computer program developed to assist the bridge engineer in designing or checking spread and pile concrete footings subjected to eccentrically applied axial loads that produce biaxial bending moments.

  • WinBDS

    WinBDS analyzes or designs orthogonal bridge frames and is applicable to the majority of concrete bridges being designed today.

  • CAPP

    CAPP is a fully functional 2-D pushover program with unique and unprecedented analytical and modeling capabilities.


    AVI FILE CREATOR allows the user to create computer animation of the section under the applied loading while simultaneously showing a graph of the response.

Software Requirements and Ordering Information

WinABUD is a Windows based program that runs under Windows 2000, XP and Vista and has the following hardware requirements.
  • PC with Pentium Processor
  • 256mb of RAM or more
  • 5MB of free hard drive space needed for WinABUD
What is included?
  • Software media
  • On-line Help System
  • Warranty
  • 30 Day Free Support
Please send inquires to Koung Thao at
Annual support, maintenance and enhancements will be provided by TRC for an additional, optional fee.

Customer Support includes:
  • Customer assistance by fax,telephone and e-mail.
  • Assistance in data preparation and interpretation of results.
You can always email our technical support at