Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/18764
Title: Long-term performance of structural health monitoring system in bridges
Authors: Zhu, S 
Shen, WA
Xu, YL 
Issue Date: 2010
Source: Bridge maintenance, safety, management and life-cycle optimization - Proceedings of the 5th International Conference on Bridge Maintenance, Safety and Management, 2010, p. 2677-2683 How to cite?
Abstract: Despite the fact that structural health monitoring systems (SHMS) are generally intended for long-term service, rare attention has been paid to the long-term performance of sensor systems. It has been observed that life durations of many installed sensors may not be as long as the service life of bridges, which makes proper inspection, maintenance or even complete replacement of sensor systems necessary during lifetime of bridge structures. Therefore a rational optimal design approach of sensor systems needs to properly take into account their long-term performance including lifetime, life-cycle reliability and maintenance period. The traditional design approaches solely based on initial performance and cost may be compromised by neglecting these factors. In light of this limitation, this paper studies the "health" of SHMS on bridges. A performance index is developed to assess the functionality of sensor systems, and the time-variant performance is then studied in a probabilistic framework.
Description: 5th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2010, Philadelphia, PA, 11-15 July 2010
URI: http://hdl.handle.net/10397/18764
ISBN: 9780415877862
Appears in Collections:Conference Paper

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