| 分布式光纤传感器用于桥梁和路面的健康监测 |
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| 引用本文： | 高俊启,施斌,张巍,柯敏勇,刘海祥,张丹. 分布式光纤传感器用于桥梁和路面的健康监测[J]. 防灾减灾工程学报, 2005, 25(1): 14-19 |
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| 作者姓名： | 高俊启 施斌 张巍 柯敏勇 刘海祥 张丹 |
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| 作者单位： | 南京大学光电传感工程监测中心,南京,210093;南京水利科学研究院,南京,210029 |
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| 基金项目： | 国家自然科学基金;教育部科学技术研究项目 |
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| 摘 要： | 介绍了两类先进的分布式光纤传感器技术,即光纤光栅(FBG)和布里渊光时域反射计(BOTDR);分别在 T型RC简支梁和连续配筋混凝土路面(CRCP)中布置了FBG和BOTDR分布式光纤传感系统,对简支梁混凝土动、静应变以及路面板中连续钢筋和混凝土应变进行了实时监测。研究结果表明,FBG和 BOTDR在桥梁和路面等一些土木工程结构的健康监测中具有重要的应用前景。
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| 关 键 词： | 分布式光纤传感器 FBG BOTDR 结构健康监测 |
| 文章编号： | 1672-2132(2005)01-0014-06 |
| 修稿时间： | 2004-10-10 |
Application of Distributed Fiber Optic Sensor to Bridge and Pavement Health Monitoring |
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| GAO Jun-qi,SHI Bin,ZHANG Wei,KE Min-yong,LIU Hai-xiang,ZHANG Dan. Application of Distributed Fiber Optic Sensor to Bridge and Pavement Health Monitoring[J]. Journal of Disaster Prevention and Mitigation Engineering, 2005, 25(1): 14-19 |
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| Authors: | GAO Jun-qi SHI Bin ZHANG Wei KE Min-yong LIU Hai-xiang ZHANG Dan |
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| Abstract: | Two kinds of novel distributed fiber optic sensing technique, i.e., Fiber Bragg Grating (FBG) and Brillouin Optical Time Domain Reflectometer (BOTDR), are introduced in this paper. The two distributed fiber optic sensing systems based on FBG and BOTDR were implemented on a simple supported reinforced concrete beam and a continuously reinforced concrete pavement (CRCP), respectively. The dynamic and static strains at the upper side of the beam was real-time monitored. In another experiment, the strain of the steel and concrete in the CRCP was also detected on-line. The experimental results show that the FBG and BOTDR technologies are able to find wide applications to structural health monitoring. |
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| Keywords: | FBG BOTDR |
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