000021943 001__ 21943
000021943 005__ 20170622131313.0
000021943 04107 $$aeng
000021943 046__ $$k2017-06-15
000021943 100__ $$aCagnan, Zehra
000021943 24500 $$aSINGLE STATION SIGMA FOR TURKISH STRONG MOTION STATIONS

000021943 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021943 260__ $$bNational Technical University of Athens, 2017
000021943 506__ $$arestricted
000021943 520__ $$2eng$$aAs ground motion observations over long enough time periods are unavailable for majority of sites, most of the ground motion prediction equations have been derived using observed data from multiple stations and seismic sources, and standard deviations (sigmas) of these equations are related to the statistics of the spatial variability of ground motion instead of temporal variability at a single site (ergodic assumption). This is one of the major shortcomings of carrying out site specific seismic hazard assessment with currently available ground motion prediction equations. In this study, we explore the variability at single sites within Turkey, decomposing sigma into different components so that the various contributions to the variability can be identified. The period and magnitude dependent standard deviation values obtained for Turkey using the ergodic assumption is changing between 0.56-0.82 ln units [1]. When single stations are considered instead, standard deviation estimates are reduced by 20%. Through the restriction of the analysis to a particular seismic source (i.e. North Anatolian Fault zone), the standard deviation values obtained for Turkey by [1] are further shown to reduce by about 10-20% depending on the spectral period under consideration. Implications of these findings for the seismic hazard of Istanbul district are further discussed within the scope of this study.

000021943 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021943 653__ $$aSingle station sigma, probabilistic seismic hazard assessment, ergodic assumption.

000021943 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021943 720__ $$aCagnan, Zehra$$iAkkar, Sinan
000021943 8560_ $$ffischerc@itam.cas.cz
000021943 8564_ $$s1204176$$uhttps://invenio.itam.cas.cz/record/21943/files/18420.pdf$$yOriginal version of the author's contribution as presented on CD, section: [RS19] Seismic risk and reliability analysis
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000021943 962__ $$r21500
000021943 980__ $$aPAPER