This paper describes the design of a reinforced concrete Foundation Slab that supports casks used for the interim storage of spent fuel. The slab is seismically qualified and designed as a Nuclear Safety Related Category 1 structure to ACI 349. The slab dimensions are 114 m × 59 m × 0.75 m with capacity for 146 casks. It supports a steelwork superstructure that is not Safety Related.
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