Structural Qualification of High Density Fuel Storage Racks

摘要

High density fuel storage racks in pools have to be designed to withstand seismic motion without loss of structuralintegrity or loss of the configuration which prevents cooling by natural convection and protection against criticality. Thispaper presents the methods that are used to prove the structural reliability against different seismic requirements, for freestandingfuel racks, which can slide and tilt in limited amounts. Structural test results are presented which were compared tocalculational results. A number of parameters have to be considered which can vary in wide ranges. Among these is the basicgeometry of the rack configuration, with different arrangements depending on use or rack assembly extension. The boundingresults of a whole range the computations are presented.