| 光纤布拉格光栅监测系统在现场监测混凝土挡土墙早期性能中的应用（英文） |
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| 引用本文： | 贠英伟,吴明喜,张一泳,金聖谦,Kim Jong - Hoe.光纤布拉格光栅监测系统在现场监测混凝土挡土墙早期性能中的应用（英文）[J].四川建材学院学报,2010(2):32-37. |
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| 作者姓名： | 贠英伟 吴明喜 张一泳 金聖谦 Kim Jong - Hoe |
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| 作者单位： | [1]洛阳理工学院土木工程系,河南洛阳471023 [2]杭州湾建筑集团有限公司,浙江杭州310021 [3]金乌国立工科大学土木环境工学部 韩国龟尾730-701 ,浙江杭州310021 [4]首尔地方国土资源厅道路设施管理局 韩国首尔100-120,浙江杭州310021 |
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| 基金项目： | 韩国建设交通部科技攻关重大项目（05-CCT-D11）和洛阳理工学院博士启动基金项目（2009BZ01）. |
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| 摘 要： | 应用光纤布拉格光栅温度传感器和应变传感器现场监测了混凝土挡土墙浇注早期的变形和温度变化情况。由于光纤布拉格光栅同时感应温度和变形,需要用布拉格光栅温度传感器对应变传感器进行温度补偿。监测结果表明,光纤布拉格光栅监测系统适用于混凝土早期性能的现场监测,通过与普通传感器监测结果对比,光纤传感器的结果更稳定,准确,且该监测系统可继续对混凝土结构的中长期性能进行实时监测。
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| 关 键 词： | 混凝土挡土墙 混凝土早期性能 光纤布拉格光栅传感器 温度补偿 |
In-situ Monitoring Early-age Properties of Concrete Retaining Wall by Fiber Bragg Grating Monitoring System |
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| Affiliation: | YUN Ying-wei, WU Ming-xi, JANG Il-Young, KIM Seong-Kyum, KIM Jong-Hoe (1. Civil Engineering Dept. , Luoyang Institute of Science and Tech. , Luoyang 471023, Henan, China; 2. Hangzhouwan Construction Group Co. Ltd. Hangzhou 310021, Zhejiang, Chinai 3. Civil and Environmental Eng. Dept. , Kumoh National Institute of Tech. , Gumi 730 -701, Korea; Road Facility Bureau, Seoul Regional Construction ＆ Management Administration, Seoul 100 - 120, Korea) |
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| Abstract: | In this paper, FBG temperature sensor and strain sensor have been used to monitor shrinkage and temperature of concrete retaining wall in construction site within its casting early age. As FBG senses both strain and temperature simultaneously, thermal shift of FBG strain senor is compensated by FBG tem- perature sensor. The test results indicate that this FBG monitoring system is feasible for monitoring con- crete properties at its early age. The dual FBG monitoring technique applied in this research could be extended to monitor shrinkage and temperature for other concrete structures. |
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| Keywords: | Concrete retaining wall Early-age property Fiber Bragg Grating sensors Temperature compensation |
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