Integrating Digital Image Correlation for the seismic assessment of stone masonry walls retrofitted with CRM
This study focuses on the in-plane behavior of stone masonry walls reinforced with CRM (Composite Reinforced Mortar) under cyclic lateral loads. The investigation tested three configurations of stone masonry: (1) unreinforced (bare) as the reference, (2) CRM reinforcement applied to one side, (3) CR...
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| Tipo de recurso: | tesis de maestría |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | español |
| OAI Identifier: | oai:upcommons.upc.edu:2117/431397 |
| Acceso en línea: | https://hdl.handle.net/2117/431397 |
| Access Level: | acceso abierto |
| Palabra clave: | Stone walls Mortar Mampostería CRM ensayo de corte cíclico patrón de grietas DIC. Murs de pedra Morter (Material de construcció) Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Càlcul d'estructures |
| Sumario: | This study focuses on the in-plane behavior of stone masonry walls reinforced with CRM (Composite Reinforced Mortar) under cyclic lateral loads. The investigation tested three configurations of stone masonry: (1) unreinforced (bare) as the reference, (2) CRM reinforcement applied to one side, (3) CRM reinforcement applied to both sides. The specimens were tested under height-to-length aspect ratio of 1.5 (slender piers) to simulate different structural behaviors. The study aimed to assess the impact of different reinforcement configurations on load-bearing capacity, displacement, and ductility. To monitor the structural response, a dual measurement approach was implemented, combining traditional point-wise sensors, such as linear potentiometers, with Digital Image Correlation (DIC) monitoring. This hybrid approach allowed for a more comprehensive analysis of the deformations and crack progression over a larger area. The analysis using Digital Image Correlation (DIC) effectively tracked crack patterns and their progression, achieving an 18% correlation in the unreinforced specimen, which is good given the material's heterogeneity. A hybrid approach combining DIC and analog measurements is essential for comprehensive monitoring, particularly in cases of material detachment. Regarding CRM reinforcement, applying it to one or both sides of the specimen significantly impacted load-bearing capacity, displacements, stiffness, and ductility. Singlesided CRM reinforcement increased lateral load resistance by 23.6%, while double-sided reinforcement achieved a 54% improvement. Displacements differed depending on the configuration, with single-sided reinforcement showing only a 9% increase in ductility, while double-sided reinforcement led to a 95% increase, allowing greater displacement. These results highlight the superior performance of double-sided reinforcement, which more effectively confines the material, enhancing both load resistance and ductility. |
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