Required Yield Strength Spectrum and Equivalent Static Seismic Design Method Proposed for Mechanical Components

Abstract

Regarding seismic design of plastic region of ductile equipment, the application of a simple static seismic design method is studied, based on the concept of required yield strength spectrum using Japanese recorded earthquake motion waveforms. As a result, especially in the high frequency region, and in the case to allow the target ductility factor to be about 3 to 5 or more, the equivalent static seismic design method by setting the ZPA considering the high-cut filter used for JMA measurement seismic intensity calculation as the design seismic coefficient is possibly effective.