“…The situation is quite different under seismic loading. Based on earlier studies [Fiorato et al, 1970;Mehrabi et al, 1996;Applied Technology Council, 1999;Dolsek and Fajfar, 2001;Zarnic et al, 2001;Erdem et al, 2006;Hashemi and Mossalam, 2006;Pinto and Taucer, 2006;Dolsek and Fajfar, 2008;Pujol and Fick, 2010;Cankaya, 2011], it is well known that infill walls change the strength, stiffness and deformation properties of the frame structures. Typically, the strength and stiffness of the frames increase and the average drifts decrease compared to those of the bare frames.…”