長方形基礎の Dynamical Ground Compliance (その4) ―半無限粘弾性地盤の場合―

Abstract

As an extensive study of Dynamical Ground Compliance which represents the dy-namical properties of a foundation on the ground, we discuss on the compliance of therectangular foundation on a semi-infinite visco-elastic solid of Voigt type in this paper.For the various combinations of viscous constants, excitation patterns and shape factorsof a rectangular foundation, the numerical results of Dynamical Ground Complianceand the equivalent rigidity and viscous damping coefficients are shown in non-dimension-al form. It is pointed out that when viscous constants in medium become larger, theequivalent rigidity coefficient becomes smaller, but the equivalent viscous damping coeffi-cient becomes larger. And the equivalent viscous damping coefficient can be approximatelyestimated by the total amount of diffusive and dissipative damping.