Effect of initial imperfections of steel liner plate on the behavior of the liner and anchorage elements in prestressed concrete containments

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F17%3A00307185" target="_blank" >RIV/68407700:21110/17:00307185 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Effect of initial imperfections of steel liner plate on the behavior of the liner and anchorage elements in prestressed concrete containments

Original language description

Prestressed concrete containments are often equipped with an internal steel liner that is responsible for the leaktightness of a containment in case of a serious accident. Production and construction of the liner is very demanding due to the slenderness of the liner. Therefore, the steel liner always shows some geometrical imperfections. The paper presents a numerical study focused on the importance of initial imperfections of steel liner plate on the behaviour of the liner and anchorage elements. FEM models of a segment of containment wall were created and loaded by prestress, operation temperature, creep and shrinkage, loss of coolant accident (LOCA) temperature and LOCA pressure. The stress-strain behaviour of the steel liner plate in the course of service life of the structure was observed. Two different types of anchorage were studied – headed studs and L-profiles. According to the results, there is no risk of buckling of the liner or failure of the liner and anchorage elements during operation conditions and LOCA. There is also no substantial difference between the behaviour of the liners connected by headed studs or by L-profiles. However, the initial imperfections of the liner plate were found to be very important for the distribution of stress in the liner and for the crack pattern in concrete.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20101 - Civil engineering

Project

<a href="/en/project/GA17-19463S" target="_blank" >GA17-19463S: Analysis of the relations between the microstructure and macroscopic properties of ultra-high performance concretes</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Nuclear Power Plants; Structures, Risk & Decommissioning

ISBN

978-0-9930121-9-8

ISSN

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e-ISSN

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Number of pages

8

Pages from-to

84-91

Publisher name

ASRANet Ltd.

Place of publication

Glasgow

Event location

London

Event date

Feb 6, 2017

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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