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Title: Distributed Fiber-Optic Sensing and Integrity Monitoring
Accession Number: 01152100
Record Type: Component
Record URL: Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Abstract: Structural health monitoring is a process meant to provide accurate and real-time information concerning structural condition and performance. Needs for structural health monitoring in the past two decades increased rapidly, and these needs stimulated the development of various sensing technologies. Distributed optical-fiber sensing technology has opened new possibilities in structural monitoring. A distributed deformation sensor (sensing cable) is sensitive at each point of its length to strain changes and cracks. Such a sensor practically monitors a one-dimensional strain field and can be installed over the entire length of the monitored structural members (suspension cables, bridge girders, tunnel vaults, dam bases, etc.). Therefore, the sensor provides for integrity monitoring, that is, direct detection, characterization (including recognition, localization, and quantification or rating), and report of local strain changes generated by damage. An integrity monitoring principle for long bridges and tunnels is developed. Various distributed sensing techniques are summarized, and their potential for the use in integrity monitoring is compared. Finally, the first large-scale, actual on-site application is briefly presented.
Monograph Title: Monograph Accession #: 01165463
Report/Paper Numbers: 10-3540
Language: English
Authors: Glisic, BrankoInaudi, DanielePagination: pp 96-102
Publication Date: 2010
ISBN: 9780309142816
Media Type: Print
Features: Figures
(5)
; Photos
(3)
; References
(22)
; Tables
(2)
TRT Terms: Uncontrolled Terms: Subject Areas: Bridges and other structures; Highways; Maintenance and Preservation; I61: Equipment and Maintenance Methods
Files: TRIS, TRB, ATRI
Created Date: Jan 25 2010 11:47AM
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