ABSTRACT
The pushover procedure is extended to obtain the seismic response estimates of asymmetrical buildings. The proposed procedure includes some of the three dimensional effects caused by the torsional responses of these buildings. New features of the procedure are the use of elastic dynamic analyses of the building to obtain the target displacements and the shape of load distribution in pushover analysis for the different lateral load resisting elements. By means of examples it is shown that the procedure leads to good estimates of the floor displacements, interstorey drifts, maximum column and beam ductility demands of the edge frames of a seven storey reinforced concrete asymmetrical building with ductile moment resisting frames. Since the proposed procedure only requires two dimensional inelastic analysis programs that are already available and have been used extensively by the design profession, it is a practical way to extend the pushover procedure to analyze asymmetrical buildings.
