Abstract
A spring-mass model for structures on pile foundations is proposed in this paper. Research on spring-mass models for pile foundation is reviewed, and a comparison with other such models in terms of the governing equations shows the features of the proposed model. Moreover, it is explained that the model is very much practical for the evaluation of the effects of both soil nonlinearity and soil liquefaction on the behavior of pile-structure system. The model is applied to two case studies whose results can simulate both seismic behavior of an instrumented structure and well-investigatedp ile failureo f a heavily damageds tructure.T hese can lead us to a conclusiont hat the applicability of the model is well verified.
