Descripción
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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. | |
Internacional
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Si |
Nombre congreso
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fib Symposium PRAGUE 2011 |
Tipo de participación
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960 |
Lugar del congreso
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Praga (República Checa) |
Revisores
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Si |
ISBN o ISSN
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978-80-87158-29-6 |
DOI
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Fecha inicio congreso
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08/06/2011 |
Fecha fin congreso
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10/06/2011 |
Desde la página
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231 |
Hasta la página
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234 |
Título de las actas
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Concrete engineering for excellence and efficiency |