In-situ monitoring of Sungsan Bridge in Han River with an optical fiber sensor system

Ki Soo Kim; J. U. Ryu; Seung-Jae Lee; Long Choi

doi:10.1117/12.274632

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23 May 1997 In-situ monitoring of Sungsan Bridge in Han River with an optical fiber sensor system

Ki Soo Kim, J. U. Ryu, Seung-Jae Lee, Long Choi

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Proceedings Volume 3043, Smart Structures and Materials 1997: Smart Systems for Bridges, Structures, and Highways; (1997) https://doi.org/10.1117/12.274632
Event: Smart Structures and Materials '97, 1997, San Diego, CA, United States

Abstract

Intrinsic Fabry-Perot optical fiber sensors were attached to a steel girder of the Sungsan Bridge which is one of the longest span bridges in Han River in Seoul, Korea. The tests were performed as parts of safety diagnosis of the bridge. We performed the visual inspection first, then we chose three spans for System Identification of the bridge. We applied numbers of strain gauges, acceleration sensors and a deflection gauge as well as optical fiber sensors. Static and dynamic loads were applied to the bridge with 30 ton weigh trucks. The optical fiber sensor system showed good responses to the static and dynamic loading with a resolution of approximately 0.12 (mu) strain. In conclusion,the optical fiber sensors can be used as elements of bridge monitoring system.

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Ki Soo Kim, J. U. Ryu, Seung-Jae Lee, and Long Choi "In-situ monitoring of Sungsan Bridge in Han River with an optical fiber sensor system", Proc. SPIE 3043, Smart Structures and Materials 1997: Smart Systems for Bridges, Structures, and Highways, (23 May 1997); https://doi.org/10.1117/12.274632

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