Fiber bragg grating sensors for arch bridge suspender health monitoring

Dongsheng Li; Zhi Zhou; Nianchun Deng; Jinping Ou

doi:10.1117/12.725908

5 March 2007 Fiber bragg grating sensors for arch bridge suspender health monitoring

Dongsheng Li, Zhi Zhou, Nianchun Deng, Jinping Ou

Proceedings Volume 6595, Fundamental Problems of Optoelectronics and Microelectronics III; 65952U (2007) https://doi.org/10.1117/12.725908
Event: Fundamental Problems of Optoelectronics and Microelectronics III, 2006, Harbin, China

Abstract

Firstly, Wavelength shift of Fiber Bragg Grating (FBG) sensors that monitor the arch bridge suspender tension due to strain or temperature change has been studied theoretically, and theirs sensitivity coefficient is gotten through calibrating experiment. Secondly, the FBG strain and temperature sensors have been successfully installed in some key suspenders of Sichuan Ebian Dadu river arch bridge. Techniques of installation of FBG sensors and suspender repairing have been explored in-service arch bridge. Thirdly, the change of suspender strain and temperature, and the effect of the same loading to different length suspender have been monitored with the FBG sensors. The monitoring results show that the FBG sensors can monitor correctly the change of traffic loading and temperature, possible fatigue damages, FBG sensors are more adaptive to long-term structural health monitoring than the electric strain gauges.

Citation Download Citation

Dongsheng Li, Zhi Zhou, Nianchun Deng, and Jinping Ou "Fiber bragg grating sensors for arch bridge suspender health monitoring", Proc. SPIE 6595, Fundamental Problems of Optoelectronics and Microelectronics III, 65952U (5 March 2007); https://doi.org/10.1117/12.725908

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available