Implementation of Elastic Layered Theory for Design of Unbonded Overlays

by Walter R. Barker, (M.ASCE), U.S. Army Engineer Waterways, Experiment Station, Vicksburg, United States,
Jim W. Hall, Jr., (F.ASCE), U.S. Army Engineer Waterways, Experiment Station, Vicksburg, United States,
Carlos R. Gonzalez, U.S. Army Engineer Waterways, Experiment Station, Vicksburg, United States,



Document Type: Proceeding Paper

Part of: Aviation Crossroads: Challenges in a Changing World

Abstract:

The U.S. Army and Air Force have implemented the elastic layered theory for design of unbonded overlays for rigid airfield pavements. The procedure allows for design of unbonded overlays in terms of a structural condition index and considers, in a rational way, the variable support offered to the overlay as the base pavement deteriorates. The basic methodology and criteria are explained, and an example design is presented.



Subject Headings: Pavement design | Elastic analysis | Layered systems | Plastic design | Pavement overlays | Airport and airfield pavements | Structural analysis | Load factors

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