Seismic isolation system

Abstract

A nuclear reactor must be designed and constructed to withstand seismic events. A modular integrated reactor support structure includes seismic isolators that rely on viscous dampers and elastic support assemblies to provide three-dimensional seismic isolation to the reactor head, reactor vessel and reactor internal components. The gravitational load of the reactor head, reactor vessel, and reactor internals is supported through the reactor head, which transfers the load to a plurality of seismic isolators, which in turn, transfer the load to the basemat of the reactor building. A plurality of reactor support assembly blocks couple the reactor head to the seismic isolators while permitting thermal expansion and contraction of the reactor head while limiting rotational motion.

Dependencies are inferred from the claim text.