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Proceedings Paper

Bragg-grating-based multisensor system for structural integrity monitoring of a large civil engineering structure: a road bridge in Norway
Author(s): Yonas M. Gebremichael; W. Li; B. T. Meggitt; William J. O. Boyle; B. McKinley; Kenneth T. V. Grattan; L. Boswell; C. A. D'Mello; K. A. Aarnes; L. Kvenild
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Paper Abstract

A spatially multiplexed high bandwidth WDM based fibre Bragg grating sensor system has been developed for structural condition monitoring and health maintenance of large civil engineering structures under both static and dynamic loading conditions. The system has been field deployed for real-time strain monitoring on a new 346m long steel road bridge in Norway. The bridge was instrumented with both fibre Bragg grating sensors and conventional resistive strain gauges at various points optimally identified. In this paper laboratory results from small-scale structures as well as field results on the real bridge structure are reported.

Paper Details

Date Published: 30 October 2001
PDF: 6 pages
Proc. SPIE 4596, Advanced Photonic Sensors and Applications II, (30 October 2001); doi: 10.1117/12.447364
Show Author Affiliations
Yonas M. Gebremichael, City Univ. (United Kingdom)
W. Li, City Univ. (United Kingdom)
B. T. Meggitt, EM Technology (United Kingdom)
William J. O. Boyle, City Univ. (United Kingdom)
B. McKinley, City Univ. (United Kingdom)
Kenneth T. V. Grattan, City Univ. (United Kingdom)
L. Boswell, City Univ. (United Kingdom)
C. A. D'Mello, City Univ. (United Kingdom)
K. A. Aarnes, Norwegian Public Roads Authority (Norway)
L. Kvenild, Oceanographic Co. of Norway (Norway)

Published in SPIE Proceedings Vol. 4596:
Advanced Photonic Sensors and Applications II
Anand Krishna Asundi; Wolfgang Osten; Vijay K. Varadan, Editor(s)

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