S Honarparast - Civil Engineering Department, Guilan University, Rasht, P O Box ۳۷۵۶, Iran,
N Fallah - Civil Engineering Department, Guilan University, Rasht, P O Box ۳۷۵۶, Iran

in this paper the concept of multi objective optimization for imporving the performance of friction dampers in sturctural seismic response reduction is studied in usual design the total slipload value of friction dampers corresponding to a structure under the design is distributed uniformly in different stoeis while in this paper the slip load values of dampers of a 2-dimensional 10- storey shear frame are distributer optimally using multi objective genetic algorithm according to three objectives thea are related to base shear maximum acceleration and maximum displacement.

vibration control,friction damper, slip load,multi objective genetic algorithm