A Method for Nonlinear Dynamamic Response Analysis of Semi-infinite Foundation Using Mapping

초록

This paper presents development of special finite difference method for the nonlinear dynamic response analysis of semi-infiniteerest,mapping is isometrical, and for far field, shrink mapping which transforms infinite interval into finite interval is adopted. Using linearand nonlinear constitutive models, the responses of semi-infinite foundation soil are computed by the authors proposed method witha small mesh model and an extensive mesh model. Surface loadings or incident earthquake waves are applied to the models in thecomputations. Good agreements were obtained among the theoretical results of two models and the effectiveness of the proposedmethod was demonstrated.

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