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Multi Disciplinary Approach for Seismic Microzonation of Bam City

Document Type : Original Research Paper

Authors

1 Building and Housing Research Center, Tehran, Iran

2 Building and Housing Research Center, Tehran, Iran.

Abstract

Earthquake struck Bam city on 12/26/2004. Seismic microzonation of Bam city started with the aim to determine engineering geological and geotechnical characteristic in order to reduce the future earthquake disasters. The seismic microzonation included geoelectric, geoseismic, geotechnic, seismotechtonic, hazard analysis and geotechnical earthquake engineering. Based on seismic results and Standard No. 2800, Bam city can be classified as "Site class I" and " II" .Depth of the seismic bedrock throughout the city approximately is less than 30 m except some portion of central part. The subsurface geotechnical investigation was carried by continuous coring, ten types of soil were identified and their surface and subsurface distributions were mapped. Site response analysis was performed to determine various parameters such as peak acceleration, period corresponding to maximum resonance and coefficient of amplification for various return periods throughout the study area. Results indicated that Bam city can be divided in to four zones with different designed spectra. Some of the design spectra of Bam city were compared with Eurocode and Standard No. 2800.

Keywords

References
References
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Scientific Quarterly Journal of Geosciences
Volume 20, Issue 78
December 2011
Pages 17-26
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