Seismic Vulnerability Analysis of a Strategic Existing RC Buildings According To the New Seismic Code Rpa99/Version 2003

Abstract eng:
The 2003 Boumerdes earthquake, magnitude 6.8, was the most devastating earthquake that occurred close to the capital Algiers, killing and injuring thousands of people and causing huge various degrees of damage to many elder RC existing buildings. Among them some were classified as strategic ones. The objective of this paper is to quantify the seismic vulnerability assessment of an old reinforced concrete strategic existing building designed prior to the new seismic code in force RPA99/version 2003 and erected in a moderate seismic zone, Constantine. The structural building system is a reinforced concrete resisting moment frames. The seismic input is considered according to the provisions of the Algerian seismic design code RPA99/version 2003. Story limit capacities are identified for first yield and ultimate states. The capacity curves were obtained using the concept of nonlinear analysis based on the capacity design. The damage parameters were obtained by performing the nonlinear time history analysis considering three different prescribed ground motion histories recorded during past earthquakes. The main damage parameters used in this study were story drift displacement. Hereafter, the main results of this analysis are discussed.

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