Analysis of Strong Ground Motion Temporal Characteristics of the 2024 Noto Peninsula Earthquake Based on Energy Input to Structures

Abstract

This study considered the dynamic effects of the strong motion observed during the 2024 Noto Peninsula earthquake had on structural response. In consideration, the cumulative energy input that obtained from the equation of energy equilibrium of the single-degree-of-freedom system was calculated. And, the time variation of the velocity response was analyzed based on energy input. Next, the cumulative energy input spectrum and the energy input rate spectrum were used to compare the effects of increasing and decrease the velocity response for every period. Furthermore, the temporal characteristics from the variation of the cumulative energy input by periodic band was considered.