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Probabilistic Models for Temperature-Dependent Compressive and Tensile Strengths of Timber

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Probabilistic Models for Temperature-Dependent Compressive and Tensile Strengths of Timber

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dc.contributor.author Garcia-Castillo, Ester es_ES
dc.contributor.author Gernay, Thomas es_ES
dc.contributor.author Paya-Zaforteza, Ignacio es_ES
dc.date.accessioned 2023-02-28T19:00:55Z
dc.date.available 2023-02-28T19:00:55Z
dc.date.issued 2023-02-01 es_ES
dc.identifier.issn 0733-9445 es_ES
dc.identifier.uri http://hdl.handle.net/10251/192167
dc.description.abstract [EN] Reliable reduction factors for timber mechanical properties at elevated temperatures are needed to design timber structures for fire safety as well as to assess the safety of historic timber structures against fire hazards. In this paper, a compilation of the available data on the compressive and tensile strengths of timber at elevated temperatures is carried out. Then, a probabilistic modeling approach to predict the temperature-dependent reduction factors applicable to fire design is proposed. The collected data cover both solid and engineered timber at temperatures from 20°C to 300°C, with a variety of sample sizes, wood species, test protocols, and moisture content used in the experiments. The data revealed a large scatter in elevated temperature strengths, and a large conservativeness of the relationships of the current European standard, which is commonly used for the advanced design of timber structures under fire. To address this variability, multiple probability density functions were calibrated across the temperature range, quantifying the goodness of fit with statistical criteria. Two-parameter Weibull functions provided the best fit, and continuous temperature-dependent relationships were derived for the parameters of the distribution. The proposed probabilistic models can be implemented in a numerical code, facilitating their use in analytical and computational approaches, and can be applied to the probabilistic assessment of the structural performance and reliability of timber structures against fire. es_ES
dc.description.sponsorship The authors wish to express their gratitude to the Spanish Ministry of Science, Innovation and Universities for supporting this research through Ph.D. Grant FPU18/00726 awarded to the first author, as well as to the Spanish Ministry of Science and Innovation for the funding provided through Project PID2021-128152NB-I00. The authors would also like to thank Professor Dr. M. Z. Naser for providing his database on timber properties at high temperatures, which includes part of the experimental data used in this paper. Finally, the authors would like to acknowledge Professor Dr. R. Qureshi and Professor Dr. S. Ni for sharing the code used to develop probabilistic models for temperature-dependent strength of steel and concrete. Funding for open access charge: Universitat Politecnica de Valencia. es_ES
dc.language Inglés es_ES
dc.publisher American Society of Civil Engineers es_ES
dc.relation.ispartof Journal of Structural Engineering es_ES
dc.rights Reconocimiento (by) es_ES
dc.subject.classification INGENIERIA DE LA CONSTRUCCION es_ES
dc.title Probabilistic Models for Temperature-Dependent Compressive and Tensile Strengths of Timber es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1061/JSENDH.STENG-11369 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/ //FPU18%2F00726//AYUDA PREDOCTORAL FPU-GARCIA CASTILLO/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/AEI//PID2021-128152NB-I00//LACTEOS/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/UPV//20220260//AYUDA UPV PUBL-PROBABILISTIC MODELS OF TEMPERATUREPAYA ZAFORTEZA, IGNACIO JAVIER/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Escuela Técnica Superior de Ingenieros de Caminos, Canales y Puertos - Escola Tècnica Superior d'Enginyers de Camins, Canals i Ports es_ES
dc.description.bibliographicCitation Garcia-Castillo, E.; Gernay, T.; Paya-Zaforteza, I. (2023). Probabilistic Models for Temperature-Dependent Compressive and Tensile Strengths of Timber. Journal of Structural Engineering. 149(2):1-15. https://doi.org/10.1061/JSENDH.STENG-11369 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1061/JSENDH.STENG-11369 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 15 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 149 es_ES
dc.description.issue 2 es_ES
dc.relation.pasarela S\478242 es_ES
dc.contributor.funder AGENCIA ESTATAL DE INVESTIGACION es_ES
dc.contributor.funder MINISTERIO DE CIENCIA E INNOVACION es_ES
dc.contributor.funder Universitat Politècnica de València es_ES
upv.costeAPC 2541 es_ES


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