Reanalysis of the floor response spectra of the Ignalina Nuclear Power Plant Reactor Building

摘要

The purpose of this paper is re-evaluation of the floor response spectra of the reactor building of Ignalina Nuclear Power Plant (NPP), Lithuania. The operation of reactor was stopped at the end of 2009; however, the removal of the nuclear waste takes a long time. The seismic evaluation of the Nuclear Power Plant Reactor Building is important in assessment of the reactor safety. The safe operation of the NPP is important not only during the reactor operation, but also when it is stopped. The building of the reactor should satisfy the safety requirements during maintenance of the building until final utilization of the nuclear fuel and equipment. The seismic analysis of Ignalina NPP are performed to evaluate the level of seismic potential in the structures with respect to new data and recent knowledge.