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Commissioning and Evaluation of a Fiber-Optic Sensor System for Bridge Monitoring

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Title Commissioning and Evaluation of a Fiber-Optic Sensor System for Bridge Monitoring
 
Creator SCOTT, RH
BANERJI, P
CHIKERMANE, S
SRINIVASAN, S
BASHEER, PAM
SURRE, F
SUN, T
GRATTAN, KTV
 
Subject Fiber-optic strain sensors
load tests
railway bridges
structural health monitoring
BRAGG GRATING SENSORS
CONCRETE
 
Description This paper describes the design, commissioning, and evaluation of a fiber-optic strain sensor system for the structural health monitoring of a prestressed concrete posttensioned box girder railway bridge in Mumbai, India, which shows a number of well-documented structural problems. Preliminary laboratory trials to design the most appropriate sensor system that could be readily transported and used on site are described, followed by a description of load tests on the actual bridge undertaken in collaboration with Indian Railways and using locomotives of known weight. Results from the load tests using the optical system are compared with similar results obtained using electrical resistance strain gages. Conclusions are summarized concerning the integrity of the structure and for the future use of the sensor system for monitoring bridges of this type. Crack width measurements obtained during the load tests are also described.
 
Publisher IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
 
Date 2014-10-15T10:17:45Z
2014-10-15T10:17:45Z
2013
 
Type Article
 
Identifier IEEE SENSORS JOURNAL, 13(7)2555-2562
http://dx.doi.org/10.1109/JSEN.2013.2256599
http://dspace.library.iitb.ac.in/jspui/handle/100/14725
 
Language en