The Optical Fiber Strain Monitoring Technology of Large-Scale Bridge

Abstract:

Application situation of optical fiber strain sensor used in bridge structure state monitoring is detailed introduced in this paper, two bridges which optical fiber strain sensor is adopted in construction stage stress monitoring and long-time stress monitoring in our country are introduced as example. According to the theoretical analysis of structures, the strain monitoring locations are selected. The composite technology between optical fiber strain sensor and concrete is researched. The installation technology and protect method between optical fiber strain sensor and steel girder are extracted, and advanced acquisition software is explored. Finally, the application foreground of optical fiber strain sensor is discussed. The research result indicates that the optical fiber strain sensor is extraordinary suitable for state monitoring of bridge structure because it has the merits of light structure and reliable performance.

• Periodical: Advanced Materials Research (Volumes 446-449)
• Pages: 3417-3421
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.446-449.3417
• Online since: January 2012
• Authors: Shu Li Chen, Mu Biao Su
• Keywords: Bridge Structure, Construction Monitoring, Long-Time Health Monitoring, Optical Fiber Strain Sensor

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