A. S MOGHADAM - Structural Engineering Department, International Institute of Earthquake Engineering and Seismology (IIEES) P.O. Box ۱۹۳۹۵-۳۹۱۳, Tehran, ۱.R. IRAN
W.K. TSO - Department of Civil Engineering, McMaster University, Hamilton, Ontario, L۸S ۴L۷, CANADA

This paper compares the main characteristics of the pushover procedures for asymmetrical buildings. The ۲D and ۳D-pushover procedures are reviewed and by a case study, the accuracy of the two procedures in estimating the seismic responses of the elements located in different parts of the building is examined