Seismic Performance of RC Building Using Spectrum Response and Pushover Analyses

Abstract

Classical seismic design codes consider behavior factor to assess seismic response of structures proposing simplified equivalent static method and dynamic spectral modal method using response spectrum. Both use a global behavior factor to take into account nonlinear effect of elements response. Nowadays Performance based Seismic Design considers nonlinear static analyses using Pushover analysis with different performance levels. They permit to determine the bearing capacity of structures and distinguish whether they will be able to withstand major earthquakes. The first mode is in general considered in such kind of analysis. This study will compare the shear base forces, drift and absolute displacements using dynamic response spectrum analysis and pushover analysis according to Eurocode 8. The results are carried in accordance with the Algerian seismic design Code in force RPA99/version 2003 and ETABS 2013 program.