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Health monitoring of a bridge system using strong motion data
Date
2009-07-01
Author
Mosalam, K. M.
Arıcı, Yalın
Metadata
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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In this paper, the acceptability of system identification results for health monitoring of instrumented bridges is addressed. This is conducted by comparing the confidence intervals of identified modal parameters for a bridge in California, namely Truckee 180/Truckee river bridge, with the change of these parameters caused by several damage scenarios. A challenge to the accuracy of the identified modal parameters involves consequences regarding the damage detection and health monitoring, as some of the identified modal information is essentially not useable for acquiring a reliable damage diagnosis of the bridge system. Use of strong motion data has limitations that should not be ignored. The results and conclusions underline these limitations while presenting the opportunities offered by system identification using strong motion data for better understanding and monitoring the health of bridge systems.
Subject Keywords
Concrete bridges
,
Damage modeling
,
Earthquake records
,
Finite element analysis
,
Health monitoring
,
System identification
URI
https://hdl.handle.net/11511/35259
Journal
SMART STRUCTURES AND SYSTEMS
DOI
https://doi.org/10.12989/sss.2009.5.4.427
Collections
Department of Civil Engineering, Article