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dc.contributor.authorCaselles Magallón, Josep Oriol
dc.contributor.authorMartín, Aleix
dc.contributor.authorClapés Boixader, Jaime
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental
dc.date.accessioned2021-04-08T08:48:12Z
dc.date.available2021-11-15T01:29:49Z
dc.date.issued2022-04
dc.identifier.citationCaselles, J.; Martín, A.; Clapés, J. Detection of damage using temporal variation in natural frequencies and principal component analysis. "International journal of architectural heritage", Abril 2022, vol. 16, núm. 4, p. 629-616.
dc.identifier.issn1558-3066
dc.identifier.urihttp://hdl.handle.net/2117/343286
dc.descriptionThis is an Accepted Manuscript of an article published by Taylor & Francis Group in International Journal of Architectural Heritage on 2020, available online at: http://www.tandfonline.com/10.1080/15583058.2020.1831101.
dc.description.abstractDetection of structural damage is an important issue. Some techniques require knowledge of the undamaged state or in-depth knowledge of the construction materials used. The application of principal component analysis to the temporal variation in natural frequencies is a promising technique. With an undamaged structure a single principal component will suffice to explain the change in modal frequencies with weather variables, whereas more components are needed in the case of damaged structures. Like all other detection techniques, it has advantages and drawbacks. The main advantages are the ability to work without knowledge of the previous state of the structure, the relatively short monitoring time required (about 10 days), low cost, and low number of instrumentations. The main drawback is the need for more studies to correlate degree of damage with the number of principal components. This paper presents the results obtained for six structures: Mallorca Cathedral, four university buildings in Barcelona, and a reduced model structure in a laboratory. We also propose a semiautomatic algorithm to track modal frequencies over time and add a discussion of operational modal analysis in real buildings.
dc.description.sponsorshipThis research was partially funded by the Ministry of Economy and Competitiveness (MINECO) of the Spanish Government and by the European Regional Development Fund of the European Union through the project referenced as CGL2015-65913-P (MINECO/FEDER, UE). We also want to acknowledge the management and maintenance services of the UPC schools of Industrial Engineering (ETSEIB) and Architecture (ETSAB) for their readiness and help, and the Department of Quantum Physics and Astrophysics of the University of Barcelona for the meteorological data.
dc.format.extent15 p.
dc.language.isoeng
dc.subjectÀrees temàtiques de la UPC::Enginyeria civil::Geotècnia::Sismologia
dc.subjectÀrees temàtiques de la UPC::Enginyeria civil::Materials i estructures
dc.subject.lcshCathedrals--Spain--Palma de Mallorca
dc.subject.lcshHistoric buildings--Earthquake effects--Spain
dc.subject.otherDamage detection
dc.subject.otherMallorca Cathedral
dc.subject.otherModal frequency tracking
dc.subject.otherPCA
dc.subject.otherTemporal variation in natural frequencies
dc.titleDetection of damage using temporal variation in natural frequencies and principal component analysis
dc.typeArticle
dc.subject.lemacCatedral de Mallorca -- Sismologia
dc.contributor.groupUniversitat Politècnica de Catalunya. GIES - Geofísica i Enginyeria Sísmica
dc.identifier.doi10.1080/15583058.2020.1831101
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttps://www.tandfonline.com/doi/abs/10.1080/15583058.2020.1831101
dc.rights.accessOpen Access
local.identifier.drac30537353
dc.description.versionPostprint (author's final draft)
dc.relation.projectidinfo:eu-repo/grantAgreement/MINECO//CGL2015-65913-P/ES/DESARROLLO Y APLICACION DE HERRAMIENTAS AVANZADAS PARA LA EVALUACION, PREVENCION Y GESTION DEL RIESGO SISMICO/
local.citation.authorCaselles, J.; Martín, A.; Clapés, J.
local.citation.publicationNameInternational journal of architectural heritage
local.citation.volume16
local.citation.number4
local.citation.startingPage629
local.citation.endingPage616


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