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Article · Вестник КазАТК · June 25, 2022

DEVELOPMENT OF A SYSTEM OF FIBER-OPTIC SENSORS BASED ON FIBER BRAGG GRATINGS

Айнур Козбакова, Aliya Kalizhanova, Murat Kunelbayev, Zhalau Aitkulov, Zhazira Amirgaliyeva

Murat Kunelbayev
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Abstract

The article herein considers testing and distant health monitoring of bridge structure in Kazakhstan, Almaty oblast, at river Issyk. Bridge on river Issyk represents a deck type construction with total length of 70 meters and width of 6 meters. Superstructure consists of 10-inch monolithic reinforced concrete plate and leans against at prestrained piled bends, each of which consists of 5 piles. Bragg smart tilted grating fiber-optic sensor for distant health monitoring is embedded beneath the bridge. There have been conducted static and dynamic bridge testing with loaded trucks and automobiles. The sensor was switched on to data collection system, constantly installed in-situ. Collected data, as well, analytical investigations prove, that current bridges specifications are conservative. Technology, having been developed in this work’s framework, will allow fulfill practical, economically effective and reliable systemic technical maintenance of bridge structures, and research will give unique possibility for future growth of the technology in Almaty oblast and in other regions of Kazakhstan.

Advanced Fiber Optic SensorsStructural Health Monitoring TechniquesStructural Engineering and Materials Analysisfiber Bragg gratingfiber optic sensorsbridge health monitoring

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