| 分布式光纤混凝土梁应变测试研究 |
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| 引用本文： | 叶宇霄,叶方洁,赵新铭,李俊,吴刚,谢雪峰,姚剑.分布式光纤混凝土梁应变测试研究[J].低温建筑技术,2017,39(3):40-44. |
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| 作者姓名： | 叶宇霄 叶方洁 赵新铭 李俊 吴刚 谢雪峰 姚剑 |
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| 作者单位： | 1. 南京航空航天大学土木工程系,南京,210016;2. 江苏省泰州市水利局,江苏泰州,225300 |
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| 摘 要： | 分布式光纤由于其长距离、分布式、实时在线监测,适用于大坝、水闸等土木工程结构的健康监测。文中在梁纵向钢筋、混凝土梁外表面分别布置分布式光纤传感器,判定混凝土梁开裂荷载及裂缝分布。研究结果表明:分布式光纤传感器能够对RC梁结构应变、裂缝进行准确的监测;分布式光纤传感器进行结构健康监测是可行的。
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| 关 键 词： | 分布式光纤传感器 应变传递系数 埋设方式 有限元模拟 |
RESEARCH ON STRAIN MEASURING IN REINFORCED CONCRETE (RC) BEAMS WITH DISTRIBUTED OPTICAL FIBER |
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| YE Yuxiao,YE Fangjie,ZHAO Xinming,LI Jun,WU Gang,XIE Xuefeng,YAO Jian.RESEARCH ON STRAIN MEASURING IN REINFORCED CONCRETE (RC) BEAMS WITH DISTRIBUTED OPTICAL FIBER[J].Low Temperature Architecture Technology,2017,39(3):40-44. |
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| Authors: | YE Yuxiao YE Fangjie ZHAO Xinming LI Jun WU Gang XIE Xuefeng YAO Jian |
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| Abstract: | Due to its long distance,distributed and real-time monitoring,distributed optical fiber is suitable for the health monitoring of civil engineering structures,like dams and sluices.In this paper,the distributed fiber optic sensors were placed at the external surfaces of the longitudinal reinforcement embedded beams and concrete beams to monitor the cracking load and crack distribution.The results show that the distributed optical fiber sensor can accurately measure the distribution of the strain and crack in RC beam.Thus,it is feasible to use distributed fiber optic sensor for structural health monitoring. |
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| Keywords: | distributed fiber strain concrete beams sensor cracks health monitoring |
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