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Proceedings Paper

Evaluating the utility of global damage detection methods for highway bridges
Author(s): Dennis M. McCann; Nicholas P. Jones; J. Hugh Ellis
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Paper Abstract

A systems-based approach for evaluating the utility of structural health monitoring methods in bridge engineering applications is presented. The vehicle for this evaluation is a systems management model developed within a computationally tractable decision support framework called a Partially Observable Markov Decision Process (POMDP). A major component of this work was the investigation of the complex relationship that exists between 'damage' as inferred from global measurements (e.g., natural frequency and mode shape) and the actual resistance or capacity of a structural system. The concept of a relationship matrix is presented as a means of representing this relationship mathematically. In addition, a simplified example is offered to illustrate how relationship matrices can be assembled via simulation. Finally, the potential implications of this research are discussed.

Paper Details

Date Published: 9 June 2000
PDF: 9 pages
Proc. SPIE 3995, Nondestructive Evaluation of Highways, Utilities, and Pipelines IV, (9 June 2000); doi: 10.1117/12.387817
Show Author Affiliations
Dennis M. McCann, Johns Hopkins Univ. (United States)
Nicholas P. Jones, Johns Hopkins Univ. (United States)
J. Hugh Ellis, Johns Hopkins Univ. (United States)

Published in SPIE Proceedings Vol. 3995:
Nondestructive Evaluation of Highways, Utilities, and Pipelines IV
A. Emin Aktan; Stephen R. Gosselin; Stephen R. Gosselin, Editor(s)

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