PROJECT-LEVEL STRUCTURAL EVALUATION OF PAVEMENTS BASED ON DYNAMIC DEFLECTIONS

The framework of a structural evaluation system for pavements, which is based on the mechanistic evaluation of dynamic deflection data, is described. The computer program RPEDD1 has been developed for the evaluation of dynamic deflection basins measured on rigid pavements by nondestructive testing devices (a falling weight deflectometer and a Dynaflect). The analysis models presented in this paper include (a) a self-iterative procedure to determine in situ moduli of pavement layers, assuming a layered linearly elastic medium; (b) a selfiterative procedure for determining nonlinear strain-dependent moduli of granular layers and subgrade; and (c) a procedure for predicting fatigue life and existing structural capacity. A methodology has been developed to eliminate any need for assuming initial values of moduli. This has also improved efficiency of the self-iterative basin matching procedure and ensured unique values of the in situ moduli. Implementation of the proposed computerized evaluation procedures also provides a rational way to delineate sections for rehabilitation design.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1985/1007/1007-005.pdf
• Summary URL:
  https://scholar.google.com/scholar_lookup?title=PROJECT-LEVEL+STRUCTURAL+EVALUATION+OF+PAVEMENTS+BASED+ON+DYNAMIC+DEFLECTIONS&author=W.+Uddin&author=A.+Meyer&author=W.+Hudson&author=K.+Stokoe&publication_year=1985
• Availability:
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• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Pavement Rehabilitation. 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.
• Authors:
  • Uddin, Waheed
  • Meyer, A H
  • Hudson, W R
  • Stokoe II, K H
• Publication Date: 1985

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 37-45
• Monograph Title: Nondestructive pavement evaluation and overlay design
• Serial:
  • Transportation Research Record
  • Issue Number: 1007
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Computer programs; Data analysis; Deflection; Dynaflect; Falling weight deflectometers; Fatigue (Mechanics); Mathematical analysis; Nondestructive tests; Pavement layers; Pavements; Structural analysis; Subgrade (Pavements)
• Uncontrolled Terms: Fatigue life
• Old TRIS Terms: Dynamic deflection determination; Pavement deflection
• Subject Areas: Geotechnology; Highways; Pavements; I23: Properties of Road Surfaces;

Filing Info

• Accession Number: 00452642
• Record Type: Publication
• ISBN: 0309038170
• Files: TRIS, TRB
• Created Date: Aug 27 2004 9:59PM