000019786 001__ 19786
000019786 005__ 20170118182336.0
000019786 04107 $$aeng
000019786 046__ $$k2017-01-09
000019786 100__ $$aDesjardins, Serge
000019786 24500 $$aDynamic Structural Health Monitoring of Confederation Bridge (First 18 Years): Lessons Learned, Challenges and Future Directions

000019786 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019786 260__ $$b
000019786 506__ $$arestricted
000019786 520__ $$2eng$$aThe 12.9km long Confederation Bridge connecting Prince Edward Island and New Brunswick in eastern Atlantic Canada is the world’s longest bridge built over ice covered sear water. With 45 main spans of 250m each and a 100-year design life, the design criteria of the Confederation Bridge are not covered by any code or standard in the world. Since the bridge opening in 1997, a comprehensive structural health monitoring system has been collecting data on the response behaviour and performance of the bridge under ambient traffic, wind and earthquake load actions. This paper summarizes the lessons learned, challenges identified and the future directions of the vibration structural health monitoring program. In the early phase of the project, dynamic response data have been used to verify the dynamic properties and design assumptions of the bridge. Subsequently, vibration data are used to provide support for decision making on the efficient operational management and maintenance of the bridge and to help with structural condition assessment. Ambient and strong wind event and traffic induced vibration monitoring data have been used to calibrate and improve the accuracy of the bridge computer models. The variability characteristics of uncertainties in the monitoring data crucial for realistic structural health and condition assessment application of bridges using field monitoring data are evaluated and a first ever data variability or uncertainty model based on actual field data has been developed. Implications of data noise and variability on structural condition assessment of bridges are discussed. An application platform developed for the Confederation Bridge monitoring project for real-time data processing, analysis and visualization is described. Future directions of vibration based structural health monitoring of critical bridges and bridge infrastructure networks are presented.

000019786 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019786 653__ $$abridge dynamics; structural health monitoring; system identification; pattern recognition; damage detection

000019786 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019786 720__ $$aDesjardins, Serge$$iTehranian, Amir$$iLau, David
000019786 8560_ $$ffischerc@itam.cas.cz
000019786 8564_ $$s675970$$uhttps://invenio.itam.cas.cz/record/19786/files/4400.pdf$$yOriginal version of the author's contribution as presented on USB, paper 4400.
000019786 962__ $$r16048
000019786 980__ $$aPAPER