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Titel |
Probabilistic seismic hazard assessment of the historical peninsula of Istanbul |
VerfasserIn |
G. Ç. İnce |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
1561-8633
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Digitales Dokument |
URL |
Erschienen |
In: Natural Hazards and Earth System Science ; 12, no. 11 ; Nr. 12, no. 11 (2012-11-22), S.3483-3493 |
Datensatznummer |
250011204
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Publikation (Nr.) |
copernicus.org/nhess-12-3483-2012.pdf |
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Zusammenfassung |
In order to design buildings that are resistant to earthquakes, first it is
necessary to determine the parameters of ground motion. In this study, the
earthquake seismic hazard analysis of the Old City Districts of Istanbul
(Fatih and Eminonu) was probabilistically defined. For the analysis, the
study zone was divided into 307 cells of 250 × 250 m using geographical
information systems, and these cells were used in the mapping of all the
data obtained. Then, for a building lifetime of 50 yr, the acceleration
parameters of earthquake ground motions, peak ground acceleration, peak
ground velocity, and spectral acceleration values of 0.2 s and 1 s were
obtained at the bedrock level according to 10% and 40% exceedances.
Additionally, in order to produce the artificial acceleration-time records
of the ground movement in accordance with the NEHRP acceleration spectrum,
the TARSCHTS computer simulation program was utilized. The results of the
analysis showed that for the 10% probability of exceedance, the peak
bedrock acceleration values ranged from 0.30 g to 0.40 g, and for the 40%
exceedance probability the acceleration values ranged from 0.22 g to 0.17 g.
The Ss 10% exceedance probability, calculated according to the
spectral acceleration parameter, ranged from 0.67 g to 0.85 g and the spectral
acceleration parameter S1 varied between 0.22 g–0.28 g. The Ss
40% exceedance probability, calculated according to the spectral
acceleration parameter, ranged from 0.46 g to 0.38 g and the spectral
acceleration parameter S1 varied from 0.12 g to 0.14 g. |
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