Application study of embedded Rayleigh based Distributed Optical Fiber Sensors in concrete beams

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hdl:2117/107780
Document typeConference report
Defense date2017
PublisherElsevier
Rights accessOpen Access
European Commission's projectTRUSS - Training in Reducing Uncertainty in Structural Safety (EC-H2020-642453)
Abstract
In this work, an experiment on two small concrete beams is described where Rayleigh based distributed optical fiber sensors (DOFS) are implemented together with traditional electrical strain gauges for the monitoring of these elements during a three-point load test. Part of the DOF sensor is embedded without protective coating directly in the rebar inside the concrete, being the remaining fiber glued to the surface of the element after the concrete hardening. This allows the direct comparison between the developed strains on the surface of concrete and the rebar with the use of a single sensor. Moreover, two types of adhesives are studied and then compared. From all the possible distributed sensing techniques, the Rayleigh based Optical Frequency Domain Reflectometer (OFDR) is the one which enables the better spatial resolution without the need of post-processing algorithms. In this way, in this experiment, this is going to be the used sensing technique.
CitationDe Sousa, A., Casas, J., Villalba, S. Application study of embedded Rayleigh based Distributed Optical Fiber Sensors in concrete beams. A: International Conference on Structural Dynamics. "Procedia engineering, volume 199, 2017". Roma: Elsevier, 2017, p. 2014-2019.
ISBN1877-7058
Publisher versionhttp://www.sciencedirect.com/science/article/pii/S1877705817339607
Collections
- Departament d'Enginyeria de Projectes i de la Construcció - Ponències/Comunicacions de congressos [87]
- Departament d'Enginyeria Civil i Ambiental - Ponències/Comunicacions de congressos [861]
- EC - Enginyeria de la Construcció - Ponències/Comunicacions de congressos [180]
- GRIC - Grup de Recerca i Innovació de la Construcció - Ponències/Comunicacions de congressos [53]
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