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Title: EXPEDIENT STRESS ANALYSIS OF JOINTED CONCRETE PAVEMENT LOADED BY AIRCRAFT WITH MULTIWHEEL GEAR
Accession Number: 00626955
Record Type: Component
Availability: Find a library where document is available Abstract: The load-carrying capacity of an airport pavement is limited by the flexural stresses that aircraft induce in a jointed plain concrete pavement (JPCP). Aircraft gear characteristics have a significant effect on the magnitude of the slab edge stress. For those aircraft that have multiwheel gear, a pavement engineer cannot directly use Westergaard's analysis for loads placed at the interior, edge, or corner of a slab. In addition, Westergaard's analysis does not account for load transfer across a joint in a JPCP. Regression models were developed during research at the University of Illinois that allow the engineer to use an equivalent single-wheel radius to determine the free edge stress in a JPCP. The models have been developed for several gear configurations so that a free edge stress equation based on Westergaard's analysis and joint load transfer efficiency models can be used to quickly determine the stress in a JPCP. Thus, instead of a computer program such as the H51 or a finite-element program such as ILLI-SLAB, regression models may be used to more efficiently and expediently determine edge stresses with no sacrifice in accuracy of the results. The expediency of the stress analysis procedure presented in this paper makes it an appropriate tool for use in the field or for inclusion in knowledge-based expert systems (KBES). In lieu of a fielded KBES, a simple electronic spreadsheet has been developed as an interim approach for this stress analysis procedure.
Supplemental Notes: This paper appears in Transportation Research Record No. 1370, Pavement Design and Rehabilitation. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
Monograph Title: Monograph Accession #: 01404951
Language: English
Authors: Seiler, Wayne JPagination: p. 29-38
Publication Date: 1992
Serial: ISBN: 0309054117
Features: Figures
(8)
; References
(21)
; Tables
(4)
TRT Terms: Uncontrolled Terms: Old TRIS Terms: Subject Areas: Aviation; Data and Information Technology; Design; Economics; Highways; Pavements; Terminals and Facilities; Vehicles and Equipment; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces
Files: TRIS, TRB
Created Date: Feb 24 1993 12:00AM
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