Real-time monitoring of local scour by using fiber Bragg grating sensors

Local scour is one of the major factors for bridge failure. Scour failures tend to occur suddenly and without prior warning or sign of distress to the structure. Two types of real-time monitoring systems for bridge scour, using fiber Bragg grating (FBG) sensors, have been developed and tested in the...

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Bibliographic Details
Published in:Smart materials and structures 2005-08, Vol.14 (4), p.664-670
Main Authors: Lin, Yung-Bin, Chen, Jin-Chong, Chang, Kuo-Chun, Chern, Jenn-Chuan, Lai, Jihn-Sung
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fracture mechanics (crack, fatigue, damage...)
Fundamental areas of phenomenology (including applications)
General equipment and techniques
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Measurement and testing methods
Physics
Servo and control equipment
robots
Solid mechanics
Structural and continuum mechanics
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Summary:Local scour is one of the major factors for bridge failure. Scour failures tend to occur suddenly and without prior warning or sign of distress to the structure. Two types of real-time monitoring systems for bridge scour, using fiber Bragg grating (FBG) sensors, have been developed and tested in the laboratory. These FBG scour-monitoring systems can measure both the processes of scouring/deposition and the variations of water level. Several experimental runs have been conducted in the flume to demonstrate the applicability of the FBG systems. The experimental results indicate that the real-time monitoring system has the potential for further applications in the field.
ISSN:0964-1726
1361-665X
DOI:10.1088/0964-1726/14/4/025