Algerian seismic code improvement by proposition of a specific design spectrum for Algiers City

Abstract

This paper is an involvement in the improvement of the Algerian seismic regulation (RPA) which presents many deficiencies. Investigations are focused on the so-called “spectral modal analysis” (SMA) method commonly used for seismic evaluation. The applications are made on reinforced concrete structures in both cases: self-steady frames and structures with shear walls (bearing walls). Furthermore, comparison is made with time history (TH) method based on a number of recent Algerian seismic records. This work led to the proposition of a more accurate design spectrum specific to Algiers City usable in the classical (force) method as well as in a simplified “performance-based” method.