Prediction of prestressing losses for long term operation of nuclear reactor buildings

Prestressed concrete is used in nuclear reactor buildings to guarantee containment and structural integrity in case of an accident. Monitoring and operating experience over 40 years has shown that prestressing losses can be much greater than the design estimation based on the usual standard laws. A...

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Main Authors:	Thillard G., Cornish-Bowden I., Capra B.
Format:	Article
Language:	English
Published:	EDP Sciences 2011-04-01
Series:	EPJ Web of Conferences
Online Access:	http://dx.doi.org/10.1051/epjconf/20111204002

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spelling	doaj-3c6da77bb8b145e1868867ae8fede4422021-08-02T04:20:33ZengEDP SciencesEPJ Web of Conferences2100-014X2011-04-01120400210.1051/epjconf/20111204002Prediction of prestressing losses for long term operation of nuclear reactor buildingsThillard G.Cornish-Bowden I.Capra B.Prestressed concrete is used in nuclear reactor buildings to guarantee containment and structural integrity in case of an accident. Monitoring and operating experience over 40 years has shown that prestressing losses can be much greater than the design estimation based on the usual standard laws. A method was developed to determine the realistic residual prestress level in structures, in particular for those where no embedded instrumentation was installed, taking into account in situ measurement results rather than design characteristics. The results can enable the owner to justify extending the lifespan while guaranteeing adequate safety and to define and plan adequate maintenance actions. http://dx.doi.org/10.1051/epjconf/20111204002
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Thillard G. Cornish-Bowden I. Capra B.
spellingShingle	Thillard G. Cornish-Bowden I. Capra B. Prediction of prestressing losses for long term operation of nuclear reactor buildings EPJ Web of Conferences
author_facet	Thillard G. Cornish-Bowden I. Capra B.
author_sort	Thillard G.
title	Prediction of prestressing losses for long term operation of nuclear reactor buildings
title_short	Prediction of prestressing losses for long term operation of nuclear reactor buildings
title_full	Prediction of prestressing losses for long term operation of nuclear reactor buildings
title_fullStr	Prediction of prestressing losses for long term operation of nuclear reactor buildings
title_full_unstemmed	Prediction of prestressing losses for long term operation of nuclear reactor buildings
title_sort	prediction of prestressing losses for long term operation of nuclear reactor buildings
publisher	EDP Sciences
series	EPJ Web of Conferences
issn	2100-014X
publishDate	2011-04-01
description	Prestressed concrete is used in nuclear reactor buildings to guarantee containment and structural integrity in case of an accident. Monitoring and operating experience over 40 years has shown that prestressing losses can be much greater than the design estimation based on the usual standard laws. A method was developed to determine the realistic residual prestress level in structures, in particular for those where no embedded instrumentation was installed, taking into account in situ measurement results rather than design characteristics. The results can enable the owner to justify extending the lifespan while guaranteeing adequate safety and to define and plan adequate maintenance actions.
url	http://dx.doi.org/10.1051/epjconf/20111204002
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Prediction of prestressing losses for long term operation of nuclear reactor buildings

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