WIT Press

The Influence Of Soil-structure Interaction On The Overall Damping Of Structures With High Damping

Price

Free (open access)

Paper DOI

10.2495/SD950641

Volume

15

Pages

8

Published

1995

Size

707 kb

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

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