杭基礎・地盤との動的相互作用がパルス性地震動入力時の超高層RC造建物の非線形応答に与える影響

This paper investigates the effect of dynamic soil-pile-structure-interaction on the nonlinear seismic responses of super high-rise RC buildings to pulse-like input motions. Dynamic soil springs and foundation input motions of pile foundations were evaluated for various types of input waves considering nonlinearity of surface soil. The effects of kinematic and inertia interaction on the seismic responses of buildings to pulse-like ground motions were comprehensively investigated by using sway-rocking models. Compiled results of the SSI effects on super high-rise RC buildings were validated using observed records including the 2018 northern Osaka earthquake (MJ6.1) and the 2021 northwestern Chiba earthquake (MJ5.9).