光纤布喇格光栅传感器在桥梁应力监测中的实效性研究  

Study of Effectiveness of Optical Fiber Bragg Grating Sensors Used for Bridge Stress Monitoring

作　　者：张谢东[1] 李永斌[1] 李卫华[1] 郭奔 

机构地区：[1]武汉理工大学交通学院,湖北武汉430063 [2]湖北楚维工程咨询监理公司,湖北荆门448124

出　　处：《桥梁建设》2006年第2期74-76,共3页Bridge Construction

摘　　要：分析了光纤布喇格光栅传感器的基本工作原理,利用光纤布喇格光栅传感器对悬臂施工的混凝土箱梁截面应变进行了短期的监测,监测结果同钢弦应变计的监测结果及数值模型的分析结果进行了对比。分析表明:光纤布喇格光栅传感器成活率高,可信性高。The basic working principles of optical fiber Bragg grating sensors are analyzed. The sensors are used to monitor in short term the strain variations of concrete box girder sections constructed with cantilever method. The results of the monitoring are then compared to those by vibrating string strain meter and numerical model analysis. The analysis of the optical fiber Bragg grating sensors indicates that the survival rate and creditability of the sensors are high.

关 键 词：桥梁 光纤传感器 应力监测 

分 类 号：U441.4[建筑科学—桥梁与隧道工程] TU378.2[交通运输工程—道路与铁道工程]