Wyoming Department of Transportation

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BRASS-DIST : Version 2.1.2 - SP2  September 2012

The Ultimate Strength Analysis (LFD) portions of this program are current with the AASHTO Specifications for Highway Bridges, 17th Edition, 2002


This uses strip finite element analysis to determine the wheel load distribution factor for any axle spacing or width, and any tire configuration of a truck placed at any position on the bridge deck. AASHTO formulas are based on empirical data and are only applicable to 6-foot-axle widths. This program will also give results for a simple beam "deck to girder" analysis for dead loads.



Operating System Microsoft Windows™ XP (SP2 or SP3), Vista, or 7.
Microprocessor Pentium IV or higher
Microsoft .NET Framework 4.0
Memory 16 MB required, more is better
Hard Disk Space Approximately 3 MB
Disk Drive DVD drive