Traffic Generated Vibrations and Bridge Integrity
Publication: Journal of Structural Engineering
Volume 110, Issue 10
Abstract
There is a well established tradition for the use of dynamic test procedures, in the determination of the real characteristics of structures. These concepts have been extended by taking measurements of the bridge vibrations generated by the normal passage of vehicles, and analyzing these data to see if it was possible to determine the dynamic characteristics of the bridges. A preliminary investigation has been made of the possible assessment of structural integrity by means of these measurements. One of the factors that has been considered as a diagnostic tool is a plot of fundamental frequency versus span. A second possibility is an analysis of the overall vibration levels on the bridge, in relation to the energy input created by the traffic. Further work would seem to be justified, in order to determine the true value of this exploratory experimental study. This should include a comparison with other proven experimental techniques, as well as support based on theoretical predictions of bridge characteristics.
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References
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Bendat, J. S., and Piersol, A. G., Measurement and Analysis of Random Data, John Wiley and Sons, New York, 1966.
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Crawford, R., and Ward, H. S., “Determination of the Natural Periods of Buildings,” Research Paper No. 229, National Research Council of Canada, Division of Building Research, 1964.
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Leonard, D. R., “Dynamic Tests on Highway Bridges—Test Procedures and Equipment,” TRRL Report LR654, Department of the Environment, Crowthorne, 1974.
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Tilly, G. P., “Damping of Highway Bridges: A Review,” TRRL Supplementary Report 275, Symposium on Dynamic Behavior of Bridges, Department of the Environment, Crowthorne, 1977.
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Van Koten, H., “The Comparison of Measured and Calculated Amplitudes of some Buildings and Determination of the Damping Effects of the Buildings,” Proceedings, Third International Conference on Wind Effects on Buildings and Structures, Tokyo, 1971.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 110 • Issue 10 • October 1984
Pages: 2487 - 2498
Copyright
Copyright © 1984 ASCE.
History
Published online: Oct 1, 1984
Published in print: Oct 1984
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