Cohesive-frictional model for bond and splitting action of prestressing wire

Gálvez Ruíz, Jaime; Benitez Baena, Jose Maria; Casati Calzada, María Jesús; Tork, B.S. y Cendón Franco, David Angel (2011). Cohesive-frictional model for bond and splitting action of prestressing wire. "International Journal for Numerical and Analytical Methods in Geomechanics", v. 35 (n. 11); pp. 1257-1277. ISSN 0363-9061. https://doi.org/10.1002/nag.956.

Descripción

Título: Cohesive-frictional model for bond and splitting action of prestressing wire
Autor/es:
  • Gálvez Ruíz, Jaime
  • Benitez Baena, Jose Maria
  • Casati Calzada, María Jesús
  • Tork, B.S.
  • Cendón Franco, David Angel
Tipo de Documento: Artículo
Título de Revista/Publicación: International Journal for Numerical and Analytical Methods in Geomechanics
Fecha: Agosto 2011
Volumen: 35
Materias:
Palabras Clave Informales: concrete;prestressed concrete;bond splitting;fracture;modelling;finite element
Escuela: E.T.S.I. Caminos, Canales y Puertos (UPM)
Departamento: Ingeniería Civil: Construcción
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

This paper presents a numerical procedure for bond between indented wires and concrete, and the coupled splitting process of the surrounding concrete. The bond model is an interface, non-associative, plasticity model. It is coupled with a cohesive fracture model for concrete to take into account the splitting of such concrete. Bond between steel and concrete is fundamental for the transmission of stresses between both materials in precast prestressed concrete. Indented wires are used to improve the bond in these structural elements. The radial component of the prestressing force, increased by Poisson's effect, may split the surrounding concrete, decreasing the wire confinement and diminishing the bonding. The combined action of the bond and the splitting is studied with the proposed model. The results of the numerical model are compared with the results of a series of tests, such as those which showed splitting induced by the bond between wire and concrete. Tests with different steel indentation depths were performed. The numerical procedure accurately reproduces the experimental records and improves knowledge of this complex process

Más información

ID de Registro: 7169
Identificador DC: http://oa.upm.es/7169/
Identificador OAI: oai:oa.upm.es:7169
Identificador DOI: 10.1002/nag.956
URL Oficial: http://onlinelibrary.wiley.com/doi/10.1002/nag.956/abstract
Depositado por: Memoria Investigacion
Depositado el: 15 Jul 2011 09:57
Ultima Modificación: 20 Abr 2016 16:20
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