Optical fiber sensing technology application in long span highway-railway cable-stayed bridge

Yan Yang

doi:10.1117/12.970306

7 November 2012 Optical fiber sensing technology application in long span highway-railway cable-stayed bridge

Yan Yang

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 8421AY (2012) https://doi.org/10.1117/12.970306
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

Abstract

The long span highway-railway cable-stayed bridge bears huge permanent load and heavy moving load. The structural internal force is the key for bridge safety operation. This paper introduces the fiber Bragg grating (FBG) strain sensor, FBG force-testing ring and FBG acceleration sensor to monitor the pivotal parameters of dynamic strain, cable force and dynamic characteristics. The bridge health monitoring system based on the three FBG sensors has been applied in Tianxingzhou bridge. The FBG sensors were monitoring during bridge construction stage, load test and normal operation. The analysis based on engineering monitoring data indicates that the data of FBG sensors are stable and reliable.

Citation Download Citation

Yan Yang "Optical fiber sensing technology application in long span highway-railway cable-stayed bridge", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 8421AY (7 November 2012); https://doi.org/10.1117/12.970306

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