论文信息 - Health monitoring system using FBG-based sensors for the ice loading on bridge pier model

Health monitoring system using FBG-based sensors for the ice loading on bridge pier model

An extensive model test program had been carried out to investigate the issues of ice loading on bridge pier model. This paper investigated design principle of three kinds of FBG sensor modules, including FBG-based displacement sensor module, FBG-based strain sensor module and FBG-based force sensor module. A series of calibration tests of all FBG sensors had been made to detect the sensitivity of FBG sensor modules previously. There were 12 FBG-based sensors applied to monitor the failure progress and to predict the cracking inside the bridge pier model. The results of the ice loading tests proved that the FBG-based sensor had many advantages, characterized by its small size, high precision, easier installation, water resistance and cold resistance, demonstrating promising potentials in cracking and failure monitoring of bridge pier model.

Hong-Nan Li | Liang Ren | Dan-dan Zhang

[1] Gangbing Song,et al. Design and application of a fiber Bragg grating strain sensor with enhanced sensitivity in the small-scale dam model , 2009 .

[2] Gangbing Song,et al. Recent applications of fiber optic sensors to health monitoring in civil engineering , 2004 .

[3] LiZhi-jun,et al. PHYSICAL PROPERTIES AND ELASTIC MODULUS OF DUT-1 MODEL ICE , 2003 .

[4] Bo Liu,et al. Temperature-insensitive fiber Bragg grating force sensor via a bandwidth modulation and optical-power detection technique , 2006, Journal of Lightwave Technology.

[5] Yan Huang,et al. Model test study of the interaction between ice and a compliant vertical narrow structure , 2007 .

[6] Garry Timco,et al. Compliant model tests with the Great Belt West Bridge piers in ice part i: Test methods and key results , 1995 .

[7] Akira Mita,et al. Health monitoring system using FBG-based sensors for a 12-story building with column dampers , 2001, SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.