Evaluation of the mechanical response of calcarenite specimens confined with fiber reinforced polymers after high temperature exposure
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Título: | Evaluation of the mechanical response of calcarenite specimens confined with fiber reinforced polymers after high temperature exposure |
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Autor/es: | Estevan, Luis | Baeza, F. Javier | Varona Moya, Francisco de Borja | Ivorra, Salvador |
Grupo/s de investigación o GITE: | Grupo de Ensayo, Simulación y Modelización de Estructuras (GRESMES) | Durabilidad de Materiales y Construcciones en Ingeniería y Arquitectura |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Ingeniería Civil |
Palabras clave: | FRP | Confinement | Stone | Masonry | High temperature |
Área/s de conocimiento: | Mecánica de Medios Contínuos y Teoría de Estructuras | Ingeniería de la Construcción |
Fecha de publicación: | oct-2021 |
Editor: | Elsevier |
Cita bibliográfica: | Journal of Building Engineering. 2021, 42: 102504. https://doi.org/10.1016/j.jobe.2021.102504 |
Resumen: | Although the confinement of compressed columns with composite materials has been extensively studied during the last decades, scarce research has been conducted in the particular case of reinforcement of stone or masonry elements subjected to high temperatures. This work reports an experimental study on the mechanical behavior of cylindrical stone specimens exposed to temperatures of 600 °C and subsequently cooled with two different methods: slow air cooling or rapid water immersion. The effect of confinement by means of carbon or glass fiber reinforced polymers (FRP) is studied. The mechanical properties of the rock are also analyzed by non-destructive tests, which constitute very appropriate techniques when working on heritage buildings. In general terms, it was found that the effect of temperature significantly reduced the strength and elastic modulus of the rock. On the other hand, FRP confinement provided large increases in strength and ultimate strain, compared to unreinforced samples. An important finding of this work is that the response of the confined specimens seems to depend basically on the properties of the FRP laminate, and not on the damage that the stone core may have suffered. Finally, the experimental results are compared with the predictions of analytical confinement models included in the most relevant international design guides. It has been proven that these models seem to provide accurate results in the case of unheated and unaltered stone, although they show larger deviations in the case of high temperature exposed specimens. |
Patrocinador/es: | The authors would like to thank Mapei Spain, S.A. for their support during this research, and supplying the materials for the specimen reinforcement. This research has been funded by the Spanish Ministry of Science, Innovation and Universities, grant number RTI2018-101148-B-100, and the University of Alicante, grant VIGROB-212. |
URI: | http://hdl.handle.net/10045/114281 |
ISSN: | 2352-7102 |
DOI: | 10.1016/j.jobe.2021.102504 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2021 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.1016/j.jobe.2021.102504 |
Aparece en las colecciones: | INV - DMCIA - Artículos de Revistas INV - GRESMES - Artículos de Revistas |
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Archivo | Descripción | Tamaño | Formato | |
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Estevan_etal_2021_JBuildEng.pdf | 8,44 MB | Adobe PDF | Abrir Vista previa | |
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