Weldable fibre Bragg grating sensors for steel bridge monitoring

被引：31

作者：

Barbosa, C. ^{[1
]}

Costa, N. ^{[1
]}

Ferreira, L. A. ^{[1
,2
]}

Araujo, F. M. ^{[1
,2
]}

Varum, H. ^{[3
]}

Costa, A. ^{[3
]}

Fernandes, C. ^{[3
]}

Rodrigues, H. ^{[3
]}

机构：

[1] FiberSensing, P-4470640 Maia, Portugal

[2] INESC, P-4200465 Oporto, Portugal

[3] Univ Aveiro, Dept Civil Engn, P-3810193 Aveiro, Portugal

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 2008年 / 19卷 / 12期

关键词：

fibre Bragg grating sensors; weldable sensors; structural health monitoring; metallic bridge;

D O I：

10.1088/0957-0233/19/12/125305

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

For applications related to the structural health monitoring of steel bridges, novel weldable strain and temperature sensors based on fibre Bragg gratings were developed. These sensors, which can be directly welded to metallic structures, reveal linear responses over typical required measurement ranges and stability over thousands of load and temperature cycles. Proper installation procedures and in-field mechanical protection were also developed and implemented. The significance of the developed sensors was demonstrated through the installation of a complete sensing network on a new circular pedestrian bridge in Aveiro, Portugal, where it was used for loading tests, and also for in-service monitoring of its structural health.

引用

页数：10

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