Structural health monitoring of innovative bridges in Canada with fiber optic sensors
Structural health monitoring of innovative bridges in Canada with fiber optic sensors
复制标题
DOI：
10.1088/0964-1726/10/3/320
复制
发表时间：
2001-06-01
影响因子：
4.1
通讯作者：
Benmokrane, B
中科院分区：
文献类型：
--
作者：
Tennyson, RC;Mufti, AA;Benmokrane, B
本文介绍了用于桥梁结构监测的光纤传感器的发展和应用。光纤布拉格光栅(FBG)已被用于测量桥面和立柱上的静态和动态载荷，包括用于修复目的的复合材料修复。还开发了一种新的长规概念：允许测量总平均应变，量规长度从1-20米不等。这些量规可以粘结到混凝土结构上或嵌入到复合材料修复补丁中。介绍了ISIS加拿大为监测加拿大桥梁结构健康而采用光纤传感的六个项目。将提供几座桥梁的数据，这些数据表明在恶劣环境中几年来系统可靠性的衡量标准。我们将重点介绍光纤传感器的优点。
This paper describes the development and application of fiber optic sensors for monitoring bridge structures. Fiber Bragg gratings (FBGs) have been used to measure static and dynamic loads on bridge decks and columns, including composite repairs for rehabilitation purposes. A new long gage concept that: permits overall average strains to be measured has also been developed with gage lengths varying from 1-20 m. These gages can be bonded to the concrete structure or imbedded in the composite repair patch. Six projects undertaken by ISIS Canada to incorporate fiber optic sensing to monitor the structural health of bridges in Canada are described. Data will be presented for several bridges that indicate a measure of system reliability over several years in a hostile environment. The benefits of fiber optic sensors will be highlighted.