当前位置: 首页 > 文章 > 基于光纤监测技术的混凝土结构损伤识别试验研究 森林工程 2004,20 (6) 15-17
Position: Home > Articles > Damage Identification Experiment of RC Beam Based on the Technology of Optical Fiber Inspection Forest Engineering 2004,20 (6) 15-17

基于光纤监测技术的混凝土结构损伤识别试验研究

作  者:
濮卫
单  位:
南京长江第三大桥建设指挥部
关键词:
光纤光栅;损伤识别;结构监测;混凝土
摘  要:
在介绍光纤光栅传感器的基本原理基础上 ,利用光纤光栅混凝土应变传感器、混凝土温度传感器与钢筋应变传感器对两根混凝土梁损伤前后的混凝土应变、钢筋应变与混凝土内部温度进行了短期的监测 ,监测结果同电阻应变片的监测结果与数值模型的分析结果进行了对比。分析表明 :传感器成活率高 ,埋设工艺可靠 ;光纤传感器采集的数据与电阻应变片、理论模型获取的结果接近 ,可信性高 ;短期监测数据反映客观规律 ,光纤监测技术可以作为长期监测有效手段之一。
译  名:
Damage Identification Experiment of RC Beam Based on the Technology of Optical Fiber Inspection
作  者:
Pu Wei (The Third Bridge Construction Headquarters of Changjiang River in Nanjing, Nanjing 210028)
关键词:
fiber brag grating; damage identification; structural inspection; RC
摘  要:
Based on the introduction of the theory of optical fiber brag grating sensors, the strains of concrete, the reinforcing steel bar and the interior temperature of the two RC beams are inspected in short time. The collected data is compared with the outcomes of resistance strain gauge and numerical model. The analysis result shows that the embedded optical fiber brag grating sensors have advantages such as high growth and survival rates, stable long_term property, insensitivity to the environment, reliability of collected data and so on. The technology of optical fiber brag grating is a stable technology for long_term inspection of RC bridges.

相似文章

计量
文章访问数: 18
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊