s rezvantalab - urmia university
s tariverdilo - professor
m sheidaii - professor assistant

incremental dynamic analysis of structures requires using some ground motions usually these ground motions have resemble response spectrum and magnitude in this study a new method for developing artificial ground motions via hilbert-huang transform and moving time -window technique is presented produced ground motions have similar response spectrum and appearance to actual ground motion but they have different frequency content with main ground motion finally 1-span1-story concrete frame was modeled and IDA curves for generalized ground motions and actual ground motion obtained then compared and the efficiency of time window size demonstrated

hilbert,haung transform,instantaneous frequency ,normal distribution,incremental dynamic analysis