Long-term performance of structural health monitoring system in bridges

S. Zhu, W. A. Shen, You Lin Xu

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review


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.
Original languageEnglish
Title of host publicationBridge Maintenance, Safety, Management and Life-Cycle Optimization - Proceedings of the 5th International Conference on Bridge Maintenance, Safety and Management
Number of pages7
Publication statusPublished - 1 Dec 2010
Event5th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2010 - Philadelphia, PA, United States
Duration: 11 Jul 201015 Jul 2010


Conference5th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2010
Country/TerritoryUnited States
CityPhiladelphia, PA

ASJC Scopus subject areas

  • Safety, Risk, Reliability and Quality
  • Building and Construction
  • Architecture

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