Sources of uncertainty in the seismic design of submerged free-standing racks

Title: Sources of uncertainty in the seismic design of submerged free-standing racks
Authors: Gonzalez Merino, Alberto
Costas de la Peña, Luis
González, Arturo
Permanent link: http://hdl.handle.net/10197/9554
Date: 20-Sep-2017
Abstract: Free-standing racks are 5 m tall structures that store spent fuel removed from the nuclear power reactor on the depths of a spent fuel pool. Rack units are arranged on the floor of this 12 meters deep pool separated by only a few centimeters. Their response to an earthquake event is a troubling safety issue as they are in submerged and free-standing conditions. Such a seismic analysis deals with a highly nonlinear behavior, a transient dynamic response and a fluid-structure interaction problem. To overcome these difficulties in a cost-effective manner, the current analysis methodology implements the hydrodynamic mass concept in commercial finite element analysis software. However, some dispersion of results still exists in the application of this ad-hoc methodology. This paper reviews the seven major sources of uncertainty inherent to the current analysis methodology together with the main challenges of the seismic analysis.
Funding Details: European Commission Horizon 2020
Type of material: Journal Article
Publisher: Elsevier
Journal: Energy Procedia
Volume: 127
Start page: 310
End page: 319
Copyright (published version): 2017 the Authors
Keywords: UncertaintySeismic analysisFree-standingRacksFluid-structure interactionNonlinearTransient analysisHydrodynamic mass
DOI: 10.1016/j.egypro.2017.08.114
Language: en
Status of Item: Peer reviewed
metadata.dc.date.available: 2018-11-20T12:45:16Z
Appears in Collections:Critical Infrastructure Group Research Collection
Earth Institute Research Collection
Civil Engineering Research Collection
TRUSS-ITN Research Collection

Show full item record

Google ScholarTM

Check

Altmetric


This item is available under the Attribution-NonCommercial-NoDerivs 3.0 Ireland. No item may be reproduced for commercial purposes. For other possible restrictions on use please refer to the publisher's URL where this is made available, or to notes contained in the item itself. Other terms may apply.