g Zamiri - Department of Civil Engineering, University of Guilan, Rasht, P O Box ۳۷۵۶, Iran
n Fallah - Department of Civil Engineering, University of Guilan, Rasht, P O Box ۳۷۵۶, Iran

in this paper dynamic behavior of high rise buildings supported on sliding isolation systems equipped with viscous dampers is studied. The inclusion of viscous damper into the sliding system is purposed to enhance the effeciency of the isolator system and also to reduce the during event displacements and after event residual displacement the isolated building is modeled as a shear type structure having one lateral degree of freedom at each story level.

sliding structure, multi-objective optimization , earthquake vibration control, genetic algorithm