In-plane shear cyclic behavior of windowed masonry walls reinforced with textile reinforced mortars
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Título: | In-plane shear cyclic behavior of windowed masonry walls reinforced with textile reinforced mortars |
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Autor/es: | Ivorra, Salvador | Torres, Benjamín | Baeza, F. Javier | Bru, David |
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: | Cyclic loads | Masonry | Textile Reinforced Mortar (TRM) | Fiber Reinforced Cementitious Matrix (FRCM) | Digital Image Correlation (DIC) |
Área/s de conocimiento: | Mecánica de Medios Contínuos y Teoría de Estructuras |
Fecha de publicación: | 1-ene-2021 |
Editor: | Elsevier |
Cita bibliográfica: | Engineering Structures. 2021, 226: 111343. https://doi.org/10.1016/j.engstruct.2020.111343 |
Resumen: | The current experimental study is focused on the mechanical performance of masonry walls under in-plane cyclic shear forces. All specimens were fabricated with a central window, in which the geometry considered the recommendations of the Spanish structural seismic design code. Windows represent a weak area in the masonry structure, in which there are stress concentrations responsible for crack initiation. In order to improve the mechanical strength and ductility, a reinforcement with a Textile Reinforced Mortar (TRM) was used on both sides of the wall. The performance of the unreinforced and reinforced masonry has been discussed in terms of strength and ductility gain, stiffness degradation and energy dissipation capacity. The experimental tests comprised an initial vertical preload, and shear cycles with increasing amplitude. All tests were monitored by means of traditional displacement transducers, and digital image correlation. The analysis of the images showed the time evolution of the overall crack distribution. The TRM effect could be observed as an increase of the mechanical strength (maximum shear from 120 kN to more than 300 kN), higher displacements (drift from 9 to 35 mm), and more energy dissipation (the cumulative energy loss from 2.7 to 12.7 kN·m). In addition, the TRM reinforcements were capable of controlling the crack initiation and growth. The widespread crack along mortar joints observed in the unreinforced masonry became localized cracks (from the window’s corners mainly), in which crack growth direction was not determined by masonry joints. |
Patrocinador/es: | The authors would like to acknowledge Mapei Spain S.A. for the materials supplied in this research. This research was funded by Spanish Ministry of Economy and Competitiveness, grant number BIA2015-69952-R and Spanish Ministry of Science, Innovation and Universities, grant number RTI2018-101148-B-I00. |
URI: | http://hdl.handle.net/10045/109605 |
ISSN: | 0141-0296 (Print) | 1873-7323 (Online) |
DOI: | 10.1016/j.engstruct.2020.111343 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2020 Elsevier Ltd. |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.1016/j.engstruct.2020.111343 |
Aparece en las colecciones: | INV - DMCIA - Artículos de Revistas INV - GRESMES - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
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Ivorra_etal_2021_EngStruct_final.pdf | Versión final (acceso restringido) | 10,71 MB | Adobe PDF | Abrir Solicitar una copia |
Ivorra_etal_2021_EngStruct_preprint.pdf | Preprint (acceso abierto) | 2,57 MB | Adobe PDF | Abrir Vista previa |
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