Shock and Vibration

Shock and Vibration / 2004 / Article
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Volume 11 |Article ID 752013 | https://doi.org/10.1155/2004/752013

M. Breccolotti, G. Franceschini, A.L. Materazzi, "Sensitivity of Dynamic Methods for Damage Detection in Structural Concrete Bridges", Shock and Vibration, vol. 11, Article ID 752013, 12 pages, 2004. https://doi.org/10.1155/2004/752013

Sensitivity of Dynamic Methods for Damage Detection in Structural Concrete Bridges

Received24 Aug 2004
Revised24 Aug 2004

Abstract

A critical analysis of the available methods for the assessment of structural concrete bridges through the observation of their dynamic response is carried out. A mathematical model for the evaluation of the natural frequencies shift due to bridge damage is applied to the case of an existing reinforced concrete bridge. The numerical results, along with the general structure of the mathematical problem, allow discussing some limitation and drawbacks of the dynamic methods. Namely the need for a reference set of the bridges dynamic properties before the onset of damage and the effect of the ambient temperature variation may lead, in many cases, to unreliable estimates of the structural condition of the investigated bridges.

Copyright © 2004 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


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