Influence of coiling on the stress relaxation of prestressing steel wires
Autor(en): |
Manuel Elices
Fernando Suarez Jaime C. Gálvez David A. Cendón José Miguel Atienza |
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Medium: | Fachartikel |
Sprache(n): | Englisch |
Veröffentlicht in: | Structural Concrete, Juni 2011, n. 2, v. 12 |
Seite(n): | 120-125 |
DOI: | 10.1002/suco.201000019 |
Abstrakt: |
The possible deleterious effects of coiling and long-term 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, such as previous residual stresses, long-term storage or storage at high temperatures, can trigger or emphasize this damage to the material. In the authors' opinion, checking the final curvature of the wires after uncoiling prior to prestressing, as required in some standards, is to be recommended. |
Stichwörter: |
Spannstahl
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Verfügbar bei: | Siehe Verlag |
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Datenseite - Reference-ID
10065895 - Veröffentlicht am:
06.10.2011 - Geändert am:
13.08.2014