Affiliation:
1. Department of Civil Engineering, University of Djelfa, Djelfa, Algeria
2. Geomaterials Laboratory, Department of Civil Engineering, University of Chlef, Chlef, Algeria
3. Building Research Center, CNERIB, Algiers, Algeria
Abstract
On May 21st, 2003, the north Algeria was stricken by a 6.8 magnitude earthquake which was felt over a distance of 250 km from the epicenter, which is localized in Mediterranean Sea at 10 km from the coast. During this event, several ground accelerations were recorded by the instrumentation network of the National Center of Applied Research in Earthquake Engineering (CGS). The records analysis revealed an important difference in peak ground acceleration (PGA) between two close stations (0.58g and 0.33g, respectively, in East-West direction) at about 20 km from the earthquake epicenter. Also, two other record stations, located in the Mitidja basin, at about 29 km and 86 km from the earthquake epicenter, respectively, showed a high level of acceleration: PGAs of 0.54g and 0.16g. So, the authors attempt in this paper to analyze these records through the characteristics of strong ground motions, the effects of different parameters such as damping ratios, soil conditions and epicentral distance on normalized response spectra. Also, the quantification of site effects during this earthquake is analyzed. Then, the authors compare the near-field mean response spectra obtained during this earthquake with the Algerian seismic design spectra (RPA99 – 2003 version) and with two other well-known design spectra: Eurocode 8 and UBC97 in order to contribute to the future revision of RPA99.
Subject
Geotechnical Engineering and Engineering Geology
Reference26 articles.
1. Material for the investigation of the seismicity of the region of Algiers.;N. N.Ambraseys;Journal of European Earthquake Engineering,1988
2. Anderson, J. G., Su, F., & Zeng, Y. (2006). Characteristics of ground motion response spectra from recent large earthquakes and their comparison with IEEE standard 693. In Proceedings of the 2006 SSA Meeting: 100th Anniversary Earthquake Conference, Commemorating the 1906 San Francisco Earthquake, San Francisco, CA.
3. Strong Algerian earthquake strikes near capital city
4. Site dependent response spectra and analysis of the characteristics of the strong ground motion due to the 1999 Duzce earthquake in Turkey
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