構造物基礎の水平復元力特性に関する実験的研究

Abstract

In this study, the horizontal restoring force acting on substructures surrounded by surfacelayers was investigated by laboratory experiments. The surface layers used in the experimentswere a dense dry sand layer and a clay layer. These experimental studies have clarified somerestoring force characteristics particular to dry sand layers and clay layers.In order to apply these experimental results to earthquake-resistant design, the restoring forcecharacteristics have been represented by an empirical formula, and discussions have been made onthe appropriateness of this idealization by means of the frequency response curve for these vibra-tional systems.