Development of smart seismic bridge bearing using fiber optic Bragg-grating sensors

Sung-Jin Chang; Nam-Sik Kim

doi:10.1117/12.2009629

22 April 2013 Development of smart seismic bridge bearing using fiber optic Bragg-grating sensors

Sung-Jin Chang, Nam-Sik Kim

Proceedings Volume 8692, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013; 869228 (2013) https://doi.org/10.1117/12.2009629
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2013, San Diego, California, United States

Abstract

After a bridge was completed, a faulting at supporting point may occur because of the unexpected loads to bridge bearing. Serviceability of bridges could be impaired by the faulting which had caused structural damage. Therefore, it is needed for a smart bridge bearing which can observe the supporting points continuously. Some of bridge bearings have been developed for measuring vertical load and vertical displacement by installing sensors in the bearing. However in those systems, it is not easy to be replaced with new sensors when repairs are needed. In this study, the smart bridge bearing of which sensors can be replaced has been developed to overcome such a problem. In this study, strain signals were used for measuring both vertical displacements and loads. Smart bridge bearings based on FBG sensors consist of EQS(Eradi Quake System) which has been commercially used for seismic bridge bearings. Experiments were carried out to prove applicability of the smart bridge bearing based on FBG sensors that can measure vertical displacements and loads.

Citation Download Citation

Sung-Jin Chang and Nam-Sik Kim "Development of smart seismic bridge bearing using fiber optic Bragg-grating sensors", Proc. SPIE 8692, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2013, 869228 (22 April 2013); https://doi.org/10.1117/12.2009629

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