Elasto‐Dynamic Analysis of Pavement Deflections
Publication: Journal of Transportation Engineering
Volume 110, Issue 6
Abstract
An elastodynamic analysis of pavement response to harmonic‐load nondestructive testing is presented. The method is based on a discrete layer approach that assumes linear variation of displacements in the direction of layering between adjacent interfaces of thin artificial pavement sublayers. The method is applied to typical four‐layer flexible pavement structures subjected to Road Rater excitations. The results show that dynamic displacements of pavements are materially different from those predicted by static analyses, even at low frequencies. If static analyses are used in backcalculating layer stiffnesses from such tests, erroneous results may be obtained. No simple relations between static and dynamic displacements exist. Rigorous elastodynamic solutions to these problems can narrow the gap between theoretical predictions of pavement response and field observations.
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References
1.
Apsel, R. J., “Dynamic Green's Functions for Layered Media and Applications to Boundary‐Value Problems,” thesis presented to the University of California at San Diego, Calif., in 1979, in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
2.
Eringen, A. C., and Suhubi, E. S., Elastodynamics, Linear Theory, Vol. 2, Academic Press, New York, N.Y., 1975.
3.
Heukelom, W., and Foster, C. R., “Dynamic Testing of Pavements,” Journal of Soil Mechanics and Foundation, ASCE, Vol. 86, No. SM1, Feb., 1960, pp. 1–28.
4.
Hoffman, M. S., and Thompson, M. R., “Backcalculating Nonlinear Resilient Moduli from Deflection Data,” Record No. 852, Transportation Research Board, 1982, pp. 42–51.
5.
Hoffman, M. S., and Thompson, M. R., “Comparative Study of Selected Nondestructive Testing Devices,” Record No. 852, Transportation Research Board, 1982, pp. 32–41.
6.
Irwin, L. H., “Determination of Pavement Layer Moduli from Surface Deflection Data for Pavement Performance Evaluation,” Proceedings, Fourth International Conference on Structural Design of Asphalt Pavements, Vol. 1, Univ. of Michigan, Aug., 1977, pp. 831–840.
7.
Kausel, E., and Peek, R., “Dynamic Loads in the Interior of a Layered Stratum: An Explicit Solution,” Bulletin of the Seismological Society of America, Vol. 72, No. 5, Oct., 1982, pp. 1459–1481.
8.
Kelvin, (Lord), “Displacements due to a Point Load in an Indefinitely Extended Solid,” Citation No. 66, Love's Treatise on the Mathematical Theory of Elasticity, 4th ed., Dover Press, New York, N.Y., 1843, p. 16.
9.
Kilareski, W. P., and Anani, B. A., “Evaluation of In‐Situ Moduli and Pavement Life from Deflection Basins,” Proceedings, Fifth International Conference on the Structural Design of Asphalt Pavements, Vol. 1, Delft Univ. of Technology, Netherlands, Aug., 1982, pp. 349–366.
10.
McCullogh, B. F., and Taute, A., “Use of Deflection Measurements for Determining Pavement Material Properties,” Record No. 852, Transportation Research Board, 1982, pp. 8–14.
11.
Michelow, J., “Analysis of Stress and Displacements in N‐Layered Elastic System under a Load Uniformly Distributed on a Circular Area,” California Research Corp., Sept., 1963.
12.
Richart, F. E., Jr., Hall, J. R., Jr., and Woods, R. D., Vibrations of Soils and Foundations, Prentice‐Hall, Inc., Englewood Cliffs, N.J., 1970.
13.
Sharpe, G. W., Southgate, H. F., and Deen, R. C., “Dynamic Pavement Deflections,” Journal of the Transportation Division, ASCE, Vol. 107, No. TE2, Paper 16130, Mar., 1981, pp. 167–181.
14.
Weiss, R. A., “Pavement Evaluation and Overlay Design: A Method that Combines Layered‐Elastic Theory and Vibratory Nondestructive Testing,” Record No. 700, Transportation Research Board, 1979, pp. 20–34.
Information & Authors
Information
Published In
Journal of Transportation Engineering
Volume 110 • Issue 6 • July 1984
Pages: 536 - 550
Copyright
Copyright © 1984 ASCE.
History
Published online: Jul 1, 1984
Published in print: Jul 1984
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