基于光纤传感技术的混凝土结构内部开裂监测试验研究

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• 英文论文题名：Experimental study on optical fiber monitoring the internal crack of concrete structures
• 论文作者：王源 ; 章征林 ; 孙阳阳 ; 张清华 ; 黄肖迪 ; 由泽伟
• 英文论文作者：Wang Yuan ; Zhang Zhenglin ; Sun Yangyang ; Zhang Qinghua ; Huang Xiaodi ; You Zewei ; State Key Laboratory of Disaster Prevention & Mitigation of Explosion & Impact ; PLA University of Science and Technology
• 年：2016
• 作者机构：解放军理工大学爆炸冲击防灾减灾国家重点实验室;
• 论文关键词：光纤传感技术 ; 混凝土结构 ; 内部开裂 ; 监测
• 英文论文关键词：optical fiber sensing technology ; concrete structures ; internal crack ; monitoring
• 会议召开时间：2016-09-26
• 会议录名称：中国土木工程学会2016年学术年会论文集
• 语种：中文
• 分类号：TU317;TU37
• 学会代码：OGTY
• 会议名称：中国土木工程学会2016年学术年会
• 会议地点：中国北京
• 主办单位：中国土木工程学会
• 学会名称：中国土木工程学会
• 页数：12
• 文件大小：1685k
• 原文格式：O
• 会议级别：全国

摘要

随着光纤传感技术的不断发展,光纤用于混凝土开裂破坏监测的研究越来越深入。然而大部分的研究都是通过在混凝土结构表面布设光纤类传感器,从而发现混凝土结构表面分布的破坏,对结构内部可能出现的损伤破坏进行监测的研究较少。这类损伤由内向外发展,外部很难发现,当发现时结构可能已完全破坏。本文利用光纤传感技术,在混凝土梁内部布设分布式光纤与特制FBG传感器,通过对梁加载,对混凝土内部应变变化连续监测。实验结果表明,通过在混凝土内部布设光纤类传感器可同时对混凝土结构开裂出现的位置、开裂时间以及裂缝宽度的准确测量。
With the development of optical fiber sensing technology,FBG has been successfully used in the aerospace industry for nondestructive detection,optical fiber sensing technology is applied in the field of civil engineering,and the study on crack monitoring by FBG is widely.However,in most of the research,the optical fiber sensor is pasted on the surface to monitor the concrete damage,less research has been done on internal crack monitoring.In this article,with the optical fiber sensing technology,distributed optical fiber and FBG sensors are laid in the inside of the concrete structure,realizing the accurate measurement of the position and the width of the crack.

引文

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