Evaluation methodology for seismic base isolation of nuclear equipment

An evaluation methodology for seismic base isolated nuclear equipment is proposed. The evaluation can be classified into two steps. In the first step, the seismic functional failure probability during the lifetime of equipment without base isolation devices is quantified in order to decide the appli...

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Bibliographic Details
Published in:Nuclear engineering and design 1993-01, Vol.142 (2-3), p.319-326
Main Authors: Ebisawa, K, Uga, T
Format: Article
Language:English
Online Access:Get full text
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Summary:An evaluation methodology for seismic base isolated nuclear equipment is proposed. The evaluation can be classified into two steps. In the first step, the seismic functional failure probability during the lifetime of equipment without base isolation devices is quantified in order to decide the applicability of the base isolated structure. The second step is comparative and calculates the ratio of the seismic failure frequency of the equipment without base isolation devices to that with them in order to evaluate the effectiveness of the base isolated structure. The sample evaluation considers the case of high voltage type emergency transformer with ceramic tubes.
ISSN:0029-5493