performance level of eccentric structures due to t orsion and soil-structure interaction

In this paper, effect of torsion on the inelastic responses of structures resting on a nonlinear flexible medium is studied. the focus here is on the plan-wise distribution of inelastic responses between different lateral load bearing lines of a torsional structure under ssi. nonlinear behavior of structural systems and the underlying soil are both taken into account and the responses are compared with the fixed-base counterparts of the flexible-base buildings. such a study has been extremely rare within the examined ssi problems in the past. as related to this paper, some of the ssi studies as follows, have explored how the inelastic responses vary for different soil-structure systems.