simplified method for evaluation of soil-structure interaction effects in liquefiable soils

The liquefaction phenomenon is one of the conditions which cause the nonlinear behavior of soils (e.g., kramer, 1996). there are many samples of structural damages in the world in which the main reason for instability was pore-pressure buildupduring an earthquake. however, the effect of pore-pressure buildup has usually not been considered in the substructure method. in this paper, the horizontal, vertical, and the rotation deformation of structures were elaborated in the substructure method for liquefaction conditions. the soil nonlinear behavior in liquefaction phenomenon was estimated using equivalentlinear method based on (khodakarami and lashgari, 2018). it was used to predict pore-pressure buildup and stiffness of soil during earthquake.