Cable stretching construction monitoring based on FBG sensor

Zi-guang Jia; Liang Ren; Dong-sheng Li; Hong-nan Li

doi:10.1117/12.882628

15 April 2011 Cable stretching construction monitoring based on FBG sensor

Zi-guang Jia, Liang Ren, Dong-sheng Li, Hong-nan Li

Proceedings Volume 7981, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011; 79812I (2011) https://doi.org/10.1117/12.882628
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2011, San Diego, California, United States

Abstract

The importance of real-time detection of cable force during stretching construction can hardly be overstated, especially in long-span space cable system. In this paper, a novel approach to monitor the cable structure health using fiber Bragg grating (FBG) sensors was elaborated and applied in monitoring the tensioning process of suspend-cable dome of Dalian Gymnasium under construction. The encapsulated FBG strain sensors were adhered to the anchor to detect the cable force. Calibration tests conducted prior to leaving factory in order to get the cable force sensitivity coefficient were also presented. The monitoring results of stage stretching construction prove that this cable force monitoring method based on FBG sensors has advantages of easy installation, non-destruction to structure and high precision, showing promising potential in cable structure health monitoring.

Citation Download Citation

Zi-guang Jia, Liang Ren, Dong-sheng Li, and Hong-nan Li "Cable stretching construction monitoring based on FBG sensor", Proc. SPIE 7981, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2011, 79812I (15 April 2011); https://doi.org/10.1117/12.882628

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