Influence of coiling in stress relaxation of prestressing steel wires

Elices Calafat, Manuel and Suárez Guerra, Fernando and Gálvez Ruiz, Jaime and Cendón Franco, David Ángel and Atienza Riera, José Miguel (2011). Influence of coiling in stress relaxation of prestressing steel wires. In: "fib Symposium 2011 in Prague: Concrete engineering for excellence and efficiency", 08/06/2011 - 10/06/2011, Praga, República Checa.

Description

Title: Influence of coiling in stress relaxation of prestressing steel wires
Author/s:
  • Elices Calafat, Manuel
  • Suárez Guerra, Fernando
  • Gálvez Ruiz, Jaime
  • Cendón Franco, David Ángel
  • Atienza Riera, José Miguel
Item Type: Presentation at Congress or Conference (Article)
Event Title: fib Symposium 2011 in Prague: Concrete engineering for excellence and efficiency
Event Dates: 08/06/2011 - 10/06/2011
Event Location: Praga, República Checa
Title of Book: Proceedings of fib Symposium 2011 in Prague: Concrete engineering for excellence and efficiency
Date: 2011
Subjects:
Faculty: E.T.S.I. Caminos, Canales y Puertos (UPM)
Department: Ciencia de los Materiales
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The possible deleterious effects of coiling and long-time storage of coiled wires on the stress relaxation behaviour of prestressing steel wires has been checked by means of experimental work and a simple analytical model. The results show that if the requirements of Standards are fulfilled (minimum coiling diameters) these effects can be neglected. However, some other factors like previous residual stresses, long-time storage or storage at high temperatures, can trigger or emphasise this damage to the material. In the authors’ opinion it is recommendable to control the final curvature of the wires after uncoiling prior to prestressing, as required in some Standards.

More information

Item ID: 12484
DC Identifier: http://oa.upm.es/12484/
OAI Identifier: oai:oa.upm.es:12484
Official URL: http://www.fib-international.org/
Deposited by: Memoria Investigacion
Deposited on: 08 Aug 2012 11:45
Last Modified: 05 Jun 2018 14:12
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