Author(s)

J.M. Llambias, D.J. Shepherd & M.D. Rodwell

Abstract

Sensitivity of seismic structural response to interpretation of soils data J.M. Llambias*, D.J. Shepherd*, M.D. Rodwell* *NNC Ltd, Booths Hall, Knutsford, Cheshire, UK ^Nuclear Electric, Booths Hall, Knutsford, Cheshire, UK ABSTRACT This paper investigates the sensitivity of the predicted seismic response of buildings in a PWR nuclear power station to the potential changes in the techniques and methods of interpreting soil data that have occurred over the last decade. The investigation is based on the Soil Structure Interaction (SSI) response of a typical PWR Reactor Building on a soft site during a seismic event. The current techniques and methods of interpretation of soils data tend to lead to a suffer site with lower soil material damping than the earlier techniques. This leads to an increase in the SSI natural frequencies of typical buildings and an increase in its seismic response. This increase in the seismic response could put into question any seismic d

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