United States Department of Transportation
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Overload Permit Procedures
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1992-12-01
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[PDF-1.78 MB]
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Edition:Interim Report Sept. 1, 1990 - Aug. 31, 1991
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Abstract:An analytical study of H 15 bridges in Texas has resulted in an improved procedure for issuing overweight truck permits. Single and multiple axle limits, specifically to protest pavements rather than bridges, are assumed. The weight restrictions limit any (and all) axle groups as a function of the gage and tire contact widths. The restrictions were derived to assure that the maximum stress in any bridge member never exceeds the operating level. Only one vehicle is allowed on the bridge at a time, but it is assumed to be traveling at a speed such that the full impact allowance is generated.
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