Abstract

A method is presented for calculating the seismic response of two-dimensional configurations of soil resting on bedrock. The method, which is based on a rheological model suggested by Iwan, takes account of the nonlinear, hysteretic behavior of soil and offers considerable flexibility for incorporating laboratory data on soil behavior. An approximate treatment of the boundary conditions is employed which permits energy to the radiated into the underlying medium. Examples are shown to illustrate the method.

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