CANDU~® reactors designed in Canada are built and operated worldwide to produce electricity economically with no emission of green house gases. In this paper, a seismic stability analysis for an in-bay stainless steel worktable for the spent fuel dry storage system of a CANDU~® nuclear power plant is presented. A finite element model is developed to represent the structural behavior of the worktable. The seismic analysis is performed using the response spectrum method and accounts for the hydrodynamic effects of the surrounding water. Missing mass effect due to the truncation of high frequency modes is discussed. Various design loads and combinations are considered in the analysis. The overturning, sliding and the strength of the free standing worktable due to a Design Basis Earthquake are checked according to the current design codes. It is found that the design of the worktable is adequate under all loading conditions.
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