Experimental and Analytical Study on Buckling of Fluid - Coupled Structures During a Seismic Load

摘要

Seismic analysis of a liquid metal fast breeder reactor is generally made with a linear dynamic model. The structure response is a combination of modes n = 1 for horizontal earthquakes and n = 0 for vertical earthquakes. The resulting loading is used for stability calculation on ''static equivalent'' models. This procedure may not be correct for two main reasons: geometrical defects and large displacements could change significantly the behaviour of the structures, the dynamic buckling pressure could be different of the static buckling pressure. To answer to these questions an experimental and analytical study on buckling of fluid - coupled structures during a seismic load has been performed by Electricite de France, the Commissariat a l'Energie Atomique and the Universite de Compiegne. (ERA citation 10:027466)