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Tie-bar extension-force online monitoring by optical fiber Bragg grating strain sensors

  • Technogenic Safety
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Russian Journal of Nondestructive Testing Aims and scope Submit manuscript

Abstract

In this paper, a tie-bar extension-force online monitoring system in a tie-bar arch bridge is presented. Optical fiber Bragg grating strain sensors are embedded in the tie-bar arch bridge for online monitoring of changes in the state of internal force. The relation between the tie-bar extension force measured by optical fiber Bragg grating strain sensors and the internal state of the tie-bar arch bridge under the actions of loading and temperature are discussed. The results show that the embedded optical fiber Bragg grating strain sensors can display the internal-force state of a tie-bar bridge and are a powerful and sensitive assistant that is convenient for and beneficial to engineers and that provides a great variety of options for avoiding disasters.

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Authors and Affiliations

  1. Wuhan University of Technology, Wuhan, 430063, China

    Fu Jun, Yan Xinping & Liu Shengchun

Authors
  1. Fu Jun
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  2. Yan Xinping
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  3. Liu Shengchun
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The text was submitted by the authors in English.

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Jun, F., Xinping, Y. & Shengchun, L. Tie-bar extension-force online monitoring by optical fiber Bragg grating strain sensors. Russ J Nondestruct Test 42, 486–491 (2006). https://doi.org/10.1134/S1061830906070096

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  • DOI: https://doi.org/10.1134/S1061830906070096

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