Inelastic seismic response of code designed single storey asymmetric structures

Abstract A parametric study of the inelastic earthquake response of single storey asymmetric structures is presented. The aim is to compare the behaviour of structures designed by the static seismic provisions of the ATC3 Code with those of the 1985 National Building Code of Canada (NBCC). Three different configurations of the resisting system were analysed for four earthquake time histories. A bilinear force-displacement relation was assumed. The study shows that the maximum ductility demand of structures designed by the NBCC is lower than those designed following ATC3. This is due to the higher total strength and the more efficient strength distribution among the resisting elements in NBCC designed structures.