FOURTH CYCLE OF PAVEMENT RESEARCH AT THE PENNSYLVANIA TRANSPORTATION RESEARCH FACILITY, VOLUME 2, DEVELOPMENT OF AN OVERLAY DESIGN PROCEDURE FOR FLEXIBLE PAVEMENTS. FINAL REPORT

An overlay design procedure for flexible pavements was developed for the Pennsylvania Department of Transportation. The procedure assumes a 3-layer model of a pavement structure, and requires Road Rater sensor deflections for estimating remaining life and required overlay thicknesses. Linear elastic layered theory was used to develop strain-deflection relationships for direct calculation of pavement strains from measured Road Rater sensor deflections. This is believed to be a simpler and more straightforward approach than the back-calculation of layer moduli from measured surface deflections and the subsequent calculation of stresses and/or strains from elastic layered theory and the layer moduli estimates. In order to develop the strain-deflection relationships, the multi-layer linear elastic program BISAR was used in a large factorial study.

• Supplemental Notes:
  • Also available in set of 7 reports PC E99, PB86-146149.
• Corporate Authors:

  Pennsylvania State University, University Park

  Pennsylvania Transportation Institute, Transportation Research Building
  University Park, PA  United States  16802

  Pennsylvania Department of Transportation

  Office of Research and Special Studies, P.O. Box 2926
  Harrisburg, PA  United States  17120

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Fernando, E G
  • Luhr, D R
  • Anderson, D A
• Publication Date: 1984-12

Media Info

• Pagination: 151 p.

Subject/Index Terms

• TRT Terms: Computer programs; Deflection; Design methods; Estimating; Flexible pavements; Linear elasticity; Overlays (Pavements); Pavements; Service life; Strain (Mechanics); Thickness
• Old TRIS Terms: Layered theories; Pavement deflection; Pavement life; Strains
• Subject Areas: Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 00475180
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: FHWA/PA-84/024, PTI-8416
• Files: TRIS, USDOT, STATEDOT
• Created Date: Nov 30 1988 12:00AM