This spreadsheets calculates the equivalent damage done to the asphalt layer by a special load in accordance with the Australian AustRoads standard. This can be used in conjunction with an elastic analysis program such as our Elastic Analysis Tool and a full pavement design package such as the MEDG Asphalt Design Spreadsheet.
The spreadsheet takes user input values for tensile strain imposed on the top of the Asphalt layer for a standard axle and for a special load. Then the spreadsheet uses these to calculate the equivalent damage done to the asphalt layer by the special load in standard axles. The spreadsheet calculates equivalent damage for both deformation and fatigue failure modes. This calculation is done in accordance with the Australian AustRoads standard.
The spreadsheet also includes unique tools allowing the user to see the effects of different tensile strains without re-entering any of the input data. This makes it easy for the designer to quickly calculate the damage caused by different special loads.
Flexible Road Structural Design Spreadsheet - Special Vehicle Damage Spreadsheet.
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