Evaluating the utility of global damage detection methods for highway bridges

Dennis M. McCann; Nicholas P. Jones; J. Hugh Ellis

doi:10.1117/12.387817

9 June 2000 Evaluating the utility of global damage detection methods for highway bridges

Dennis M. McCann, Nicholas P. Jones, J. Hugh Ellis

Proceedings Volume 3995, Nondestructive Evaluation of Highways, Utilities, and Pipelines IV; (2000) https://doi.org/10.1117/12.387817
Event: SPIE's 5th Annual International Symposium on Nondestructive Evaluation and Health Monitoring of Aging Infrastructure, 2000, Newport Beach, CA, United States

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.

Citation Download Citation

Dennis M. McCann, Nicholas P. Jones, and J. Hugh Ellis "Evaluating the utility of global damage detection methods for highway bridges", Proc. SPIE 3995, Nondestructive Evaluation of Highways, Utilities, and Pipelines IV, (9 June 2000); https://doi.org/10.1117/12.387817

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