Descripción del proyecto
Tecnología de mortero reforzado con textiles para fortalecer edificios de mampostería
La mayoría de los edificios de Europa, sobre todo los de gran valor arquitectónico o histórico, son construcciones tradicionales de mampostería. A menudo son necesarias intervenciones de refuerzo para mejorar su respuesta estructural frente a sucesos sísmicos. La última técnica innovadora de mortero reforzado con textiles (TRM, por sus siglas en inglés) es muy prometedora, pero su eficacia depende de los conectores utilizados para fijar las capas de refuerzo al sustrato. El uso de conectores varía en función de diferentes parámetros y, hoy en día, no se dispone de directrices comúnmente aceptadas sobre el diseño, la instalación práctica y el rendimiento mecánico del sistema integrado de refuerzo de TRM/conectores. El equipo del proyecto CONNECT, financiado con fondos europeos, utilizará un método numérico experimental para elaborar recomendaciones que permitan diseñar correctamente intervenciones reforzadas con TRM mediante la aplicación racional de conectores para edificios de mampostería en riesgo.
Objetivo
Traditional masonry buildings constitutes the greatest part of the building stock in Europe, involving constructions with high historical, architectural and cultural value. These buildings are particularly susceptible to horizontal actions, as demonstrated during past many seismic events, thus requiring rehabilitation and strengthening actions in order to improve their structural behaviour. Within this scope, innovative strengthening techniques, such as Textile Reinforced Mortar (TRM) composite materials, have been adopted during the last years. TRMs have shown to be quite effective for retrofitting of masonry, but the effectiveness of this technique depends on several parameters. In particular, a key point to the success of the strengthening is the use of connectors to fix the reinforcing layer and prevent it from debonding or delamination, which would turn the strengthening measure useless.
Currently, connectors are used in TRM applications in an empirical way and no commonly accepted guidelines are available regarding the design, practical installation and mechanical performance of the integrated TRM/connector strengthening system. Thus, the role of mechanical anchors in the performance of the TRM system needs to be characterized and to be taken into account for a rational and efficient design of TRM systems, allowing to reduce the uncertainty of its mechanical behaviour and increasing the confidence in the technique.
The aim of the project is the development of recommendations to properly design TRM-strengthened interventions by the rational application of connectors for the retrofitting of masonry buildings exposed to seismic actions. This will be achieved by the integration of robust experimental results and advanced numerical modelling of the TRM/connector system, supported
on an initial state of the review. The combined experimental-numerical approach is the core of the project, which will be complemented by management and dissemination tasks.
Ámbito científico
Palabras clave
Programa(s)
Convocatoria de propuestas
Consulte otros proyectos de esta convocatoriaConvocatoria de subcontratación
H2020-WF-03-2020
Régimen de financiación
MSCA-IF - Marie Skłodowska-Curie Individual Fellowships (IF)Coordinador
4704 553 Braga
Portugal