01552169

Component

https://doi.org/10.3141/2525-04

This paper investigates the ability of a generalized Westergaard model consisting of a viscoelastic plate on a viscoelastic Winkler foundation to describe deflections of both rigid and flexible pavements under dynamic loading. The pavement response to falling weight deflectometer (FWD) loading was simulated, and a semianalytical solution involving the use of a Hankel transform in space and a finite difference method in time was developed. The obtained solution was used to interpret FWD data collected at the Minnesota Road Research Facility. It was shown that a good match between the simulated and measured response data could be obtained for both rigid and flexible pavements if inertia and viscoelastic effects were accounted for. The proposed model is thus an attractive tool for analysis of pavement–vehicle interaction.

01592675

15-5366

English

pp 31–39

2015

Transportation Research Record: Journal of the Transportation Research Board

9780309369497

Print

Figures (6) ; References (17) ; Tables (1)

Deflection; Dynamic loads; Falling weight deflectometers; Flexible pavements; Mathematical models; Measurement; Rigid pavements; Simulation; Viscoelasticity

Minnesota Road Research Facility; Westergaard's formulas

Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways

TRIS, TRB, ATRI

Dec 30 2014 1:48PM

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