共 17 条
Development and sensing properties study of FRP-FBG smart stay cable for bridge health monitoring applications
被引:64
作者:
Li, Dongsheng
[1
]
Zhou, Zhi
[1
]
Ou, Jinping
[1
,2
]
机构:
[1] Dalian Univ Technol, Sch Civil & Hydraul Engn, Dalian 116024, Peoples R China
[2] Harbin Inst Technol, Sch Civil Engn, Harbin 150090, Peoples R China
来源:
基金:
中国国家自然科学基金;
关键词:
Stay cable;
Optical fiber grating;
Smart reinforced polymer sensor;
Cable strain;
Health monitoring;
Cable damage;
BRAGG GRATING SENSORS;
TENSION;
STRAIN;
FREQUENCY;
D O I:
10.1016/j.measurement.2011.01.005
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
There are many shortcomings in using traditional force sensors and bare optic fiber Bragg grating sensors (OFBGS) to monitor the stresses in bridge stay cables. In this paper, we propose to use the glass fiber with high durability and high intensity to embed the optic fiber grating sensor. First, the craft procedure of the GFRP-OFBGS and the layout methods among the bridge stay cables are described. Second, the sensing properties of the GFRP-OFBGS with different diameters were studied through experiments. Third, stretching experiments were carried out on the smart stay cables. The test results demonstrated that the whole procedure of the stretching test can be perfectly monitored, and the quantities of the cable tension can be recorded accurately. Finally, we investigated the craft procedure of the GFRP-OFBGS sensor layout in ErBian DaDu river bowstring arch in SiChuan province, China. The whole stretching procedure was successfully monitored during construction. (C) 2011 Elsevier Ltd. All rights reserved.
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页码:722 / 729
页数:8
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