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Title: Development of a reliability-based design procedure for rigid and flexible airfield pavements
Authors: Pittman, David W.
Keywords: CBR
Flexible pavements
Pavement design
Rigid pavements
Airfield runways
Runway pavements
Publisher: Geotechnical Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Miscellaneous paper (U.S. Army Engineer Waterways Experiment Station) ; GL-96-8.
Description: Miscellaneous Paper
Abstract: This report documents the application of reliability-based techniques to the U.S. Army Corps of Engineers rigid (Westergaard) and flexible (CBR) airfield pavement design procedures. Pavement reliability is defined as the probability that the expected capacity of the pavement system exceeds the expected demand of traffic to be applied to the pavement, in terms of coverages until failure. A literature review briefly outlines existing procedures and previous studies related to reliability-based pavement design procedures. The variability of pavement materials and design inputs for the Corps rigid and flexible pavement design procedures is presented. The first-order second moment (FOSM), Monte-Carlo simulation, and point estimation method (PEM) for characterizing the variability of the pavement capacity are reviewed. The FOSM and Monte-Carlo techniques are applied to the rigid and flexible design procedures, and the results are compared for a particular design example. A spreadsheet program is presented which uses the FOSM technique to estimate the pavement capacity variability, and a sensitivity analysis of the variability of the rigid and flexible design inputs on the reliability of the pavement is presented. A suggested framework for determining levels of design reliability for airfield pavements is presented, and advantages and limitations of the reliability method are discussed.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Miscellaneous Paper

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