Inelastic performance of RC buildings subjected to near-source multi-component earthquakes

Four analysis cases are considered for each earthquake including, one lateral earthquake component (X-case), two lateral earthquake components (XY-case), one lateral earthquake component accompanied with the vertical earthquake component (XZ-case) and two lateral earthquake components accompanied with the vertical earthquake component (XYZ-case). The results obtained in this study indicate that the multi-component effect of the earthquakes has a considerable effect on the axial forces and strain ductility factors of the building columns although it does not significantly affect the building lateral-deformation response.