Observatorio de I+D+i UPM

Memorias de investigación
Artículos en revistas:
Residual behavior of reinforced SFRC beams damaged by impact
Año:2019
Áreas de investigación
  • Ingenieria civil
Datos
Descripción
The awareness of damages caused by impacts in civil structures has increased for the last decades. While some research has been devoted so far to evaluate the impact strength of concrete structures and to the improvement of such resistance with the addition of steel fibers, the assessment of the structural condition after the impact event still remains almost unexplored. In fact, the residual capacity of reinforced SFRC (steel fiber-reinforced concrete) structures should be considered as one of the main advantages of the employ of SFRC in structures expected to suffer impacts because it seems logical to assume that impacts, in case of occurrence, will cause damage. The understanding of the residual capacity of impact-damaged structures, in terms of strength and energy absorption, would be decisive to safely perform evacuation and recovery operations, as well as evaluate rehabilitation tasks. This paper presents a research on the residual capacity of pre-impacted reinforced SFRC beams. Seven mixtures of SFRC are evaluated, including three types of steel fibers and two values of fiber amount (as well as companion unreinforced plain concrete mixture). The research includes an experimental campaign as well as a model to understand the contribution of the SFRC to the strength and ductility of undamaged and damaged specimens. Among the conclusions, it has been found out that the failure mode (i.e. shear- or flexure-governed) of damaged specimens is dependent on the crack pattern caused by the impact, and it can be different from the failure mode of undamaged specimens.
Internacional
Si
JCR del ISI
Si
Título de la revista
Structural Concrete
ISSN
1464-4177
Factor de impacto JCR
1,384
Información de impacto
Datos JCR del año 2017
Volumen
20(2)
DOI
Número de revista
Desde la página
597
Hasta la página
613
Mes
SIN MES
Ranking
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Carlos Zanuy Sanchez (UPM)
  • Autor: Gonzalo Sanz-Diez de Ulzurrun Casals (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Grupo de Ingeniería Estructural
S2i 2023 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)