The seismic design example for the Specialized Safety Facility with Static Seismic Coefficient Procedure considering Ductility Factor
長澤 和幸 KazuyuNi NAGASAWA 川口 善之 YoshiyuNi KAWAGUCHI 古谷 賢 Masaru FURUYA
Design Basis EarthquaNe Ductility Factor Seismic Design Static Coefficient
This paper proposes new static seismic design methodology with newly defined DSC derived from elastic-plastic time historical seismic response analysis of components and allowable ductility factor to prevent damage to components. The process of the seismic response analysis to obtain the ductility factor considering load-deflection characteristic of components and definition of the allowable ductility factor based on the actual experiences are also described. Furthermore, trial analysis of the DSC for actual nuclear facility of KashiwazaNi-Kariwa Nuclear Power Station is conducted. It is expected that the new method will help diversify the existing seismic design system, which is based on equivalent elastic design, as well as increase the reliability of seismic design to deal with the uncertainty of the seismic motion.