Seismic microzonation and earthquake damage scenarios for urban areas

A methodology for seismic microzonation and earthquake damage scenarios may be considered as composed of two stages. In the first stage, microzonation maps with respect to estimated earthquake characteristics on the ground surface are generated for an investigated urban area. The effects of local ge...

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Bibliographic Details
Published in:Soil dynamics and earthquake engineering (1984) 2010-11, Vol.30 (11), p.1319-1328
Main Authors: Ansal, Atilla, Kurtuluş, Aslı, Tönük, Gökçe
Format: Article
Language:English
Subjects:
Earth sciences
Earth, ocean, space
Earthquake construction
Earthquake damage
Earthquake engineering
Earthquakes, seismology
Engineering and environment geology. Geothermics
Engineering geology
Exact sciences and technology
Grounds
Internal geophysics
Mathematical analysis
Natural hazards: prediction, damages, etc
Seismic engineering
Seismic phenomena
Soil (material)
Urban areas
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Summary:A methodology for seismic microzonation and earthquake damage scenarios may be considered as composed of two stages. In the first stage, microzonation maps with respect to estimated earthquake characteristics on the ground surface are generated for an investigated urban area. The effects of local geological and geotechnical site conditions are taken into account based on site characterization with respect to representative soil profiles extending down to the engineering bedrock. 1D site response analyses are performed to calculate earthquake characteristics on the ground surface using as many as possible, hazard compatible real acceleration time histories. In the second stage, vulnerability of buildings and pipeline systems are estimated based on site-specific ground motion parameters. A pilot study is carried out to evaluate seismic damage in a district in Istanbul, Turkey. The results demonstrate the significance of site characterization and site response analysis in calculating the earthquake characteristics on the ground surface in comparison to simplified empirical procedures.
ISSN:0267-7261
1879-341X
DOI:10.1016/j.soildyn.2010.06.004