Seismic Response Analyses of Turbine Hall and Electrical Building of RBMK-1000 MW Type NPP

摘要

This paper addresses results obtained during the study of Turbine Hall and Electrical Building of RBMK-rn1000MW pair units at Leningradskaya NPP (LNPP) for seismic event. The study was performed in the frame of thernCoordinated Research Program of the International Atomic Agency (IAEA) on Safety of RBMK type Nuclear PowerrnPlants (NPP) in Relation of External Events.rnA 3-D finite element model of Main Building Complex was developed and seismic response analyses werernperformed taking into account the soil-structure interaction (SSI). The standard mode superposition method was usedrnfor evaluation of dynamic response of structure in time domain. The structure was assumed surface founded at thernbasemat level. Seismic response analyses were carried out considering shear wave propagation pattern for the inputrnmotion. The in-structure time histories and response spectra were generated in referenced locations. Conclusions arerndrawn for the reliability of the structural response evaluation considering the soil-structure interaction effects.