Memorias de investigación
Conferencias:
Cracking of RC structures: Differences between tension and flexure
Año:2019
Áreas de investigación
  • Ingenieria civil
Datos
Descripción
Dominant cracking models for flexural elements are mostly based on assuming that a virtual tie forms around the reinforcement and the resulting expressions are derived from this assumption. The main difference in existing code formulations is that present in EN 1992-1-1:2004 in which the bond term for crack spacing is affected by factor k2 which is equal to 0.5 for bending and 1.0 for tension. This paper shows this to be an oversimplification of the problem. An improved proposal is made to account for this effect. But cracking in flexure is different from cracking in tension in other ways. One of them is the effect of curvature on the increase of crack width with cover. It will be shown that this effect, accounted for only in the comments of MC 2010, is very significant. Also, evidence of the effect of bad bond or good bond conditions on crack spacing, affecting mainly flexural members, will be given.
Internacional
Si
ISSN o ISBN
978-82-8208-069-9
Entidad relacionada
THE NORDIC CONCRETE FEDERATION
Nacionalidad Entidad
NORUEGA
Lugar del congreso
Oslo
Esta actividad pertenece a memorias de investigación
Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Grupo de Ingeniería Estructural
  • Departamento: Mecánica de Medios Continuos y Teoría de Estructuras