Structural integrity monitoring of bridges using fiber optics

Richard W. Griffiths

doi:10.1117/12.207740

20 April 1995 Structural integrity monitoring of bridges using fiber optics

Richard W. Griffiths

Proceedings Volume 2446, Smart Structures and Materials 1995: Smart Systems for Bridges, Structures, and Highways; (1995) https://doi.org/10.1117/12.207740
Event: Smart Structures and Materials '95, 1995, San Diego, CA, United States

Abstract

Bridge integrity is recognized as a complex issue, with visual inspection currently being the prime technique for determining structural health. For instrumentation to contribute to such determination, high cost effectiveness is mandatory. Potential bridge instrumentation functions are outlined with a cost comparison between conventional strain gages and a distributed fiber optic system. Because of the lack of a static model to assess overall bridge integrity from localized strain/displacement data, collaboration is suggested with dynamic methods to mutually determine structural health on as a 3-D or global basis. Examples of several types of bridges are presented, with suggested fiber optic instrumentation. Known fiber optic bridge installations are reviewed and two new fiber optic sensing developments are presented as uniquely applicable to cost-effective bridge integrity determination.

Citation Download Citation

Richard W. Griffiths "Structural integrity monitoring of bridges using fiber optics", Proc. SPIE 2446, Smart Structures and Materials 1995: Smart Systems for Bridges, Structures, and Highways, (20 April 1995); https://doi.org/10.1117/12.207740

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