FATIGUE SUBSYSTEM SOLUTION FOR ASPHALT CONCRETE AIRFIELD PAVEMENTS

This paper summarizes the development of a workable design approach to analyze fatigue distress of full-depth asphalt airfield pavements. The design method uses multilayered elastic theory coupled with a limiting (critical) strain criterion developed analysis of field results from the AASHO Road Test. The solution methodology requires that 2 specific functions be evaluated for design: the allowable traffic value function and the predicted traffic value function. The allowable traffic value represents the number of equivalent strain repetitions of a standard aircraft that a given thickness of full-depth pavement can withstand for a particular temperature and subgrade modulus combination. The predicted traffic value represents the number of equivalent aircraft strain repetitions estimated to occur during the selected design period for a given full-depth thickness. The thickness solution is obtained by the simultaneous graphical solution of both traffic value functions. Thickness design curve and aircraft equivalency diagrams are provided from which both traffic value functions are easily obtained. Design input variables needed for the thickness solution are the design subgrade modulus, mean annual air temperature, design period, and aircraft traffic forecast. /Author/

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    • Appeared in Structural Design of Asphalt Concrete Pavements to Prevent Fatigue Cracking. Proceedings of a Symposium held January 22, 1973. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
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    Highway Research Board

    2101 Constitution Avenue, NW
    Washington, DC    20418
  • Authors:
    • Witczak, M W
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  • Publication Date: 1973

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 112-129
  • Monograph Title: STRUCTURAL DESIGN OF ASPHALT CONCRETE PAVEMENTS TO PREVENT FATIGUE CRACKING
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Filing Info

  • Accession Number: 00272017
  • Record Type: Publication
  • ISBN: 030902160X
  • Files: TRIS, TRB, ATRI
  • Created Date: Sep 19 1974 12:00AM