地震時における構造物基礎模型の復元力と応答に関する実験的研究

Abstract

This study deals with experiments on the horizontal restoring force and the response of arigid structural foundation surrounded by surface layers subjected to earthquakes. Model surfacelayers used in the experiments are composed with dry sand and fully saturated sand. Vibratingmodels have circular, square and rectangular sections. It is shown that the surface layer andmodel foundation system in vibration works as a a band pass filter. The behavior of the model varieswith the water content of the surface layer and with the mode of excitation, but the tendenciesof the behaviors of the models are similar.