Show simple item record

dc.contributor.authorVillalba Herrero, Sergi
dc.contributor.authorFernández López, Antonio
dc.contributor.authorCasas Rius, Joan Ramon
dc.contributor.authorGüemes Gordo, Alfredo
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria de la Construcció
dc.identifier.citationVillalba, S. [et al.]. Feasibility of structural health monitoring of concrete structures by optical backscatter reflectometer. A: International Workshop on Structural Health Monitoring. "The 7th International Workshop on Structural Health Monitoring". 2009, p. 1-8.
dc.description.abstractThe use of Optical Backscaterr Reflectometer (OBR) sensors is a promising measurement technology for SHM as it offers the possibility of continuous monitoring of strain and temperature along the fibre. Several applications to materials used in the aeronautical construction have demonstrated the feasibility of such technique. These materials (composites, steel, aluminium) apart from having a smooth surface where the bonding of the sensor is easily carried out, they also have a continuous strain field when subject to external loading and therefore the bonding of the OBR on the material surface is not in danger for high levels of loading as the OBR can easily follow the strain in the material. The application of such type of sensor to concrete structures may present some difficulties due to: 1) the roughness of the concrete surface and the heterogeneity due to the presence of aggregates of several sizes, 2) The fact that reinforced concrete cracks at very low level of load, appearing a discontinuity in the surface and the strain field that may provoke a break or debonding of the optical fiber. However the feasibility of using OBR in the SHM of civil engineering constructions made of concrete is also of great interest, mainly because in this type of structures it is impossible to know where the crack may appear and therefore severe cracking (dangerous for the structure operation) can appear without warning of the monitoring if sensors are not placed in the particular location where the crack appears. In order to explore the potentiality of detecting cracks as they appear without failure or debonding, as well as the compatibility of the OBR bonding to the concrete surfaces, a test was carried out in the loading up to failure of a concrete slab.
dc.format.extent8 p.
dc.subjectÀrees temàtiques de la UPC::Enginyeria civil::Materials i estructures
dc.subject.lcshStructural health monitoring
dc.titleFeasibility of structural health monitoring of concrete structures by optical backscatter reflectometer
dc.typeConference report
dc.subject.lemacEstructures de formigó -- Manteniment i reparació
dc.contributor.groupUniversitat Politècnica de Catalunya. TE - Tecnologia d'Estructures
dc.contributor.groupUniversitat Politècnica de Catalunya. GRIC - Grup de Recerca i Innovació de la Construcció
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (author’s final draft)
local.citation.authorVillalba, S.; Fernández López, A.; Casas, Joan R.; Güemes Gordo, A.
local.citation.contributorInternational Workshop on Structural Health Monitoring
local.citation.publicationNameThe 7th International Workshop on Structural Health Monitoring

Files in this item


This item appears in the following Collection(s)

Show simple item record

All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder