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Distributed Strain Monitoring with Arrays of Fiber Bragg Grating Sensors on an In-Construction Steel Box-Girder Bridge

Sandeep VOHRA, Gregg JOHNSON, Michael TODD, Bruce DANVER, Bryan ALTHOUSE

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Summary :

This paper describes the implementation of a Bragg grating-based strain-monitoring system on the Viaduc des Vaux bridge during its construction in 1997 and 1998. The bridge was constructed in a cantilevered, push/pull incremental launching method, and data obtained from two tests were shown to reveal interesting features of the box-girder strain response during the push and pull phases, particularly with regard to limit loads and local buckling. When appropriate, data were compared to data obtained from conventional resistive strain gages and from simple analytical models.

Publication
IEICE TRANSACTIONS on Electronics Vol.E83-C No.3 pp.454-461
Publication Date
2000/03/25
Publicized
Online ISSN
DOI
Type of Manuscript
Special Section INVITED PAPER (Special Issue on Optical Fiber Sensors)
Category
System Applications and Field Tests

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