| 混凝土裂缝分布式光纤光栅监测能力研究 |
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| 引用本文： | 包腾飞,钱飞.混凝土裂缝分布式光纤光栅监测能力研究[J].压电与声光,2011,33(4). |
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| 作者姓名： | 包腾飞 钱飞 |
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| 作者单位： | 河海大学水文水资源与水利工程科学国家重点实验室,江苏南京210024;河海大学水资源高效利用与工程安全国家工程研究中心,江苏南京210024 |
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| 基金项目： | 国家自然科学基金资助项目(51079046,50909041); 河海大学水文水资源与水利工程科学国家重点实验室专项基金资助项目(2009586012,2009586012,2010585212); 国家科技支撑计划课题基金资助项目(2008BAB29B03,2008BAB29B06); 中央高校基本科研业务费基金资助项目(2009B08514,2010B20414,2010B14114,2010B14114); 中国水电工程顾问集团公司科技基金资助项目(CHC-KJ-2007-02); 江苏省“333高层次人才培养工程”基金资助项目(2017-B08037); 江苏省普通高校研究生科研创新计划基金资助项目(CX09B_163Z); 高等学校博士学科点专项科研基金资助项目(20070294023) |
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| 摘 要： | 深入分析了光纤布喇格光栅(FBG)裂缝传感原理,研究了基于FBG传感的分布式裂缝监测技术。为验证FBG裂缝传感的可行性,进行了混凝土模型试验发现,FBG能准确监测到裂缝发生和扩展及其过程中的定量规律;串联在一根光纤上的多只FBG传感器能进行分布式监测,在不知裂缝的具体位置和走向的情况下,能监测混凝土结构裂缝的发生和发展。
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| 关 键 词： | 光纤传感器 混凝土 裂缝 光纤布喇格光栅 监测 |
Study on Crack Monitoring Capability of Distributed Fiber Bragg Grating Sensors in Concrete Structures |
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| BAO Tengfei,QIAN Fei.Study on Crack Monitoring Capability of Distributed Fiber Bragg Grating Sensors in Concrete Structures[J].Piezoelectrics & Acoustooptics,2011,33(4). |
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| Authors: | BAO Tengfei QIAN Fei |
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| Affiliation: | BAO Tengfei1,2,QIAN Fei1,2(1.State Key Lab.of Hydrology-Water Resources and Hydraulic Engineering,Hohai University,Nanjing 210024,China,2.National Engineering Research Center of Water Resources Efficient Utilization and Engineering Safety,China) |
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| Abstract: | The principle of fiber Brag grating(FBG) sensors for monitoring cracks in concrete structures is analyzed,and the distributed crack monitoring technique based on FBG sensing is studied.To validate the feasibility of FBG crack sensing,an experiment was conducted using a concrete beam.The test results show that the FBG sensors can accurately monitor crack initiation and propagation as well as the quantitative rule of crack propagation,which can reflect the failure mode of concrete.Multiple FBG sensors in one ... |
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| Keywords: | fiber optic sensors concrete crack fiber Bragg grating monitoring |
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