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Title: RELIABILITY DESIGN OF FLEXIBLE AIRFIELD PAVEMENTS: ELASTIC LAYERED METHOD
Accession Number: 00739782
Record Type: Component
Record URL: Availability: Find a library where document is available Abstract: A design procedure was developed for layered elastic flexible airfield pavement systems in terms of probability and reliability. A user-friendly computer program, RELIFLEX, was prepared to carry out the computations. The Rosenblueth method is used to estimate the expected value and variance of the computed strains (dependent parameters) on the basis of the input mean values of independent parameters (i.e., aircraft load, layer thicknesses, and material moduli). RELIFLEX has the capability of considering the strain distribution to be normal, lognormal, or beta, and a capacity-demand analysis is included. Only normal distribution is presented. Environmental effects and the lack of fit of the prediction models are not considered in RELIFLEX. The relationships between the reliability level and the allowable strain repetition of the designed system, established using RELIFLEX, provide a decision-making tool for engineers to design pavement at the desired reliability level. For a desired reliability level of the design system, pavement thickness can be varied to agree with the designed coverage or the allowable coverage can be modified for a given pavement thickness.
Supplemental Notes: This paper appears in Transportation Research Record No. 1568, Pavement Rehabilitation and Design.
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Chou, Y TPagination: p. 124-130
Publication Date: 1997
Serial: ISBN: 0309059747
Features: Figures
(5)
; References
(10)
TRT Terms: Uncontrolled Terms: Old TRIS Terms: Subject Areas: Aviation; Data and Information Technology; Design; Highways; Pavements; Terminals and Facilities; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces
Files: TRIS, TRB, ATRI
Created Date: Aug 27 1997 12:00AM
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