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Title: EFFECTS OF TRUCK TIRE CONTACT PRESSURE DISTRIBUTION ON THE DESIGN OF FLEXIBLE PAVEMENTS: A THREE-DIMENSIONAL FINITE ELEMENT APPROACH
Accession Number: 00472242
Record Type: Component
Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Order URL: http://worldcat.org/issn/03611981 Abstract: The objective of the study reported in this paper was to investigate the effect of high inflation pressure and heavy axle load on asphalt-concrete pavement performance by using a three-dimensional finite element model instead of an elastic layer model, which is commonly used for pavement design. The flexible pavement finite element analysis was conducted with both an experimental nonuniform pressure model and a uniform pressure model as input to the program TEXGAP-3D. The results show that (a) the uniform pressure model overestimated the increase in tensile strain at the bottom of the surface for overinflated tires and underestimated the increase in tensile strain at the bottom of the surface for overloaded tires, (b) both high inflation pressure and heavy load caused a high increase in tensile strain at the bottom of the surface and a significant reduction of the pavement fatigue damage life, and (c) the axle load (not the inflation pressure) had a major influence on the subgrade rutting life.
Supplemental Notes: This paper appeared in Transportation Research Record N1095, Design and Performance of Flexible Pavements.
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Chen, H HMarshek, K MSaraf, C LPagination: p. 72-78
Publication Date: 1986
Serial: Features: Figures
(12)
; References
(4)
; Tables
(4)
TRT Terms: Uncontrolled Terms: Old TRIS Terms: Subject Areas: Design; Highways; Pavements; Vehicles and Equipment; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces
Files: TRIS, TRB
Last Modified: Aug 31 1987 12:00AM
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