起振機試験による基礎構造の振動特性 ―(その3)地盤復元力の剛性と減衰性について―

Abstract

The purpose of this paper is to evaluate experimentally the vertical, horizontal androtational equivalent spring and damping constants for the restoring force of the groundand then to investigate the validity and the limitation of application for the theoreticalresults, comparing those with the experimental results.The experimental equivalent spring and damping constants are obtained from the responsesof three type foundations rest on the soft deposit ground due to the vertical and/or horizontalexcitations by making use of the rotating mass type oscillator. The theoretical spring anddamping constants are derived from "the dynamical ground compliances". Both theoreticaland experimental results are shown in the graphical forms and are compared with each other.