Structural monitoring using fiber optic sensors of a pre-stressed concrete viaduct during construction phases
نویسندگان
چکیده
منابع مشابه
Applications of Structural Health Monitoring Using Fiber Optic Sensors
Fiber optic sensors have many advantages such as ease of embedding, flexible sensor size, wide temperature range, high sensitivity and etc[1]. Thus, fiber optic sensors have been introduced into many composite structures. Especially, FBG (Fiber Bragg Grating) strain sensors have noticeable attractions due to multiplexing capability, linear response and absolute measurement [2]. However, the use...
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Aircraft operators are faced with increasing requirements to extend the service life of air platforms beyond their designed life cycles, resulting in heavy maintenance and inspection burdens as well as economic pressure. Structural health monitoring (SHM) based on advanced sensor technology is potentially a cost-effective approach to meet operational requirements, and to reduce maintenance cost...
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Residual stresses in fibre reinforced composites can give rise to a number of undesired effects such as loss of dimensional stability and premature fracture. Hence, there is significant merit in developing processing techniques to mitigate the development of residual stresses. However, tracking and quantifying the development of these fabrication-induced stresses in real-time using conventional...
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Natural phenomena like earthquakes, landslides, avalanches or mud flows can cause severe damages of railway tracks. Today’s monitoring concepts either focus on a permanent monitoring of known problematic sites or an epochwise measurement of the railway track with special measurement cars. In this paper we present a new approach for continuous monitoring of railway tracks over long distances. Th...
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Pipelines are efficient, highly reliable and safe means of transportation. However, although the number of leaks could be reduced since the early 70’s of the last century due to improved design and maintenance procedures as well as improved materials, leaks still appear. Most of these are originated by external causes such as digging excavators or slope movements despite intensive pipeline righ...
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ژورنال
عنوان ژورنال: Case Studies in Nondestructive Testing and Evaluation
سال: 2014
ISSN: 2214-6571
DOI: 10.1016/j.csndt.2014.06.002