Determination of internal strain of concrete beam using fiber Bragg grating sensors

被引：0
|
作者：
Wan, Li-Bing [1 ]
Wu, Zhan-Jun [1 ]
Zhang, Bo-Ming [1 ]
Wang, Dian-Fu [1 ]
Zhao, Xue-Feng [1 ]
Zhou, Zhi [1 ]
机构：
[1] Cent. for Composite Mat., Harbin Inst. of Technol., Harbin 150001, China
来源：
Guangdianzi Jiguang/Journal of Optoelectronics Laser | 2002年 / 13卷 / 07期
关键词：
Fiber Bragg gratings - Sensitivity analysis - Sensors - Strain measurement;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Fiber Bragg grating (FBG) strain sensors were characterized and embedded into the prestressed concrete beam of Hulan river bridge. Embedding techniques and protective methods suitable for civil engineering were presented. With FBG sensors, internal strains of the concrete beam were determined during the stressing process. FBG sensors show the advantages of strong surviving capability, absolute value measurement and long service life over conventional electrical strain gauge in experiments. The results indicate that it is possible to establish a structural health monitoring system based on fiber optic sensors.
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页码：722 / 725
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