Structural Engineering Research Center,International Institute of Earthquake Engineering and Seismology(IIEES),Tehran,Iran;
Department of Civil Engineering,Faculty of Engineering,University of Jiroft,Jiroft,Kerman,Iran;
Facultad de Ingeniería,Universidad Autónoma de Sinaloa,Calz.de las Américas y Boulevard Universitarios,Cd.Universitaria,80040 Culiacán,Mexico;
residual displacement demand; mainshock-aftershock sequences; peak inelastic displacement; constantstrength spectra;