铁道科学与工程学报2017，Vol.14Issue(10)：2231-2238,8.
基于长标距光纤光栅传感器的连续梁桥监测技术
Monitoring technology of continuous girder bridge based on long-gauge fiber bragg grating sensors
摘要
Abstract
The principles of fiber Bragg grating sensor were investigated in theory, and the concept together with the manufacturing technology of long-gauge fiber Bragg grating sensors were put forward. Based on the analysis of the characteristics of the long-gauge FBG sensors, the long-gauge FBG sensors were used for the construction monitoring and long-term monitoring of a long-span prestressed concrete continuous girder bridge. The layout scheme and the installation technique of the FBG were explored. The monitoring and the theoretical stresses in the key sections of the bridge were compared. The results show that the long-gauge fiber Bragg grating sensors are stable, reliable, precise, and quasi-distributed. The long-gauge fiber Bragg grating sensors can realize the real-time monitoring of the stress, temperature and so on, so it is an effective sensor for structural monitoring.关键词
光纤布拉格光栅/长标距/监测/应力/连续梁桥Key words
fiber Bragg grating/long-gauge/monitor/stress/continuous girder bridge分类
交通工程引用本文复制引用
魏洋,卢海鹏,刘小明,端茂军,李国芬..基于长标距光纤光栅传感器的连续梁桥监测技术[J].铁道科学与工程学报,2017,14(10):2231-2238,8.基金项目
国家自然科学基金资助项目(51208262,51778300) （51208262,51778300）
江苏省自然科学基金资助项目(BK20151520) （BK20151520）
江苏省"333"工程(BRA2016421)和"青蓝工程"项目(QL2017) （BRA2016421）
安徽省交通控股集团有限公司科技项目(2015JD04) （2015JD04）
