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Title:

RELIABILITY DESIGN OF FLEXIBLE AIRFIELD PAVEMENTS: ELASTIC LAYERED METHOD

Accession Number:

00739782

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/isbn/0309059747

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
Washington, DC 20001 United States

Authors:

Chou, Y T

Pagination:

p. 124-130

Publication Date:

1997

Serial:

Transportation Research Record

Issue Number: 1568
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

0309059747

Features:

Figures (5) ; References (10)

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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