Author(s)

O. Chuanromanee, R.D. Hanson & R.D. Woods

Abstract

The influence of the soil-structure interaction on the overall damping of buildings with energy dissipation devices is described. A new lumped parameter model that effectively represents the dynamic stiffness of the foundation-soil system over a wide range of frequencies has been developed. The energy dissipation devices are assumed to be interstory viscoelastic type. A generalized modal superposition method is used to analyze build- ings with low, medium and high natural periods. It is found that increasing damping through the energy dissipation devices results in increasing the overall damping, and soil-structure interaction makes this effect less pro- nounced. The overall damping in the first two modes of vibratio

Keywords