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Load and temperature influence on the post-fire mechanical properties of steel reinforcements

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Load and temperature influence on the post-fire mechanical properties of steel reinforcements

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dc.contributor.author Lapuebla-Ferri, Andrés es_ES
dc.contributor.author Pons Aliaga, David es_ES
dc.contributor.author Romero, Manuel L. es_ES
dc.date.accessioned 2022-04-05T06:55:36Z
dc.date.available 2022-04-05T06:55:36Z
dc.date.issued 2021-11 es_ES
dc.identifier.issn 0143-974X es_ES
dc.identifier.uri http://hdl.handle.net/10251/181815
dc.description.abstract [EN] An experimental study was carried out to evaluate the residual mechanical properties of steel reinforcements after their exposure to elevated temperatures. In order to reproduce real loading conditions, specimens were simultaneously subjected to a load level and a thermal cycle consisting of heating up to a target temperature and cooling back to room temperature. The target temperature was a percentage of the critical temperature, i.e., the temperature at which a specimen breaks when it is subjected to a constant tensile load and an increasing temperature at a constant rate. After that, the residual mechanical properties were obtained submitting the specimens to tensile testing until failure. Critical temperatures for each load level were obtained by means of transient-state tests. In parallel, unloaded specimens were subjected to the same thermal cycle for comparison purposes, and for the same reason steady-state tests were also performed. Results indicated that the residual mechanical behaviour of reinforcing bars depended not only on the maximum temperature reached, but also on the load level that was bearing during the thermal cycle. Depending on this combination of variables, the code requirements for a given ductility class of a reinforcement may not be satisfied in a post-fire situation. Considering the lack of information in this issue, the obtained data can be helpful in the assessment of reinforced concrete structures after a fire. es_ES
dc.description.sponsorship The authors would like to express their sincere gratitude to the Spanish Agencia Estatal de Investigacion (AEI) for the help provided through the Project PID2019-105908RB-I00 and also to the European Union through the FEDER funds. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Journal of Constructional Steel Research es_ES
dc.rights Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) es_ES
dc.subject Residual properties es_ES
dc.subject Post-fire behaviour es_ES
dc.subject Reinforcement es_ES
dc.subject Steady-state test es_ES
dc.subject Transient-state test es_ES
dc.subject Tensile test es_ES
dc.subject.classification MECANICA DE LOS MEDIOS CONTINUOS Y TEORIA DE ESTRUCTURAS es_ES
dc.title Load and temperature influence on the post-fire mechanical properties of steel reinforcements es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.jcsr.2021.106866 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-105908RB-I00/ES/USO DE MATERIALES DE ALTAS PRESTACIONES PARA LA MEJORA DE LA RESISTENCIA FRENTE AL FUEGO DE COLUMNAS MIXTAS CON SECCIONES DE ACERO EMBEBIDAS EN HORMIGON/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Mecánica de los Medios Continuos y Teoría de Estructuras - Departament de Mecànica dels Medis Continus i Teoria d'Estructures es_ES
dc.description.bibliographicCitation Lapuebla-Ferri, A.; Pons Aliaga, D.; Romero, ML. (2021). Load and temperature influence on the post-fire mechanical properties of steel reinforcements. Journal of Constructional Steel Research. 185:1-13. https://doi.org/10.1016/j.jcsr.2021.106866 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1016/j.jcsr.2021.106866 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 13 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 185 es_ES
dc.relation.pasarela S\447690 es_ES
dc.contributor.funder AGENCIA ESTATAL DE INVESTIGACION es_ES
dc.contributor.funder European Regional Development Fund es_ES


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