000021671 001__ 21671
000021671 005__ 20170622131259.0
000021671 04107 $$aeng
000021671 046__ $$k2017-06-15
000021671 100__ $$aGatti, Filippo
000021671 24500 $$aPHYSICS-BASED SEISMIC SCENARIO OF THE 2007 CHUETSU-OKI EARTHQUAKE

000021671 24630 $$n6.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000021671 260__ $$bNational Technical University of Athens, 2017
000021671 506__ $$arestricted
000021671 520__ $$2eng$$aThis study presents a preliminary calibration of a large-scale seismological model of the MW 6.6 Niigata-Ken Chuetsu-Oki (Japan) earthquake of July, 16th 2007. The strong ground motion affected a wide area in the surrounding of the Kashiwazaki-Kariwa Nuclear Power Plant (KKNPP). Due to the relative small source-to-site distance and shallow hypocenter depth, this seismic scenario resulted very interesting and well documented (a consistent database of seismic recordings is available). In this context, the test-case represents a suitable benchmark for the work-packages of the SINAPS@ project. SINAPS@ is the first French research project with the objective to quantify the uncertainty of the procedures to estimate the seismic risk. In this context, an omni-comprehensive approach is followed, modelling the wave-propagation from the fault to the structural components. This study is intended to describe the steps to build up and calibrate a reliable seismic scenario, capable to provide a synthetic wave-field at the regional scale. This objective is pursued by (1) assessing a stratified geological model for the Niigata region, (2) testing the effect of the source parameters in a kinematic approach (e.g. the rise time and the shape of the Source Time Function) and (3) checking the topography effect. A series of 3D source-to-site numerical simulations of the MW 4.4 NCOEQ2007 aftershock was therefore carried out with this regard (performed by means of the Spectral Element Method, SEM). The seismic scenario was calibrated with the aid of the semi-analytical solution provided by the Wave-Number Integration Method (WNI) and by comparing the synthetics with the recordings at several locations (i.e. the KNET-Kik-Net stations nearby and the KKNPP site). Finally, the forward physics-based analysis ended up by providing broad-band synthetic time-histories to be exploited in further studies as a reliable regional incident wave-field for the engineering bedrock

000021671 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000021671 653__ $$aPhysics-based simulation, earthquake strong ground motions, Spectral Elements Methods

000021671 7112_ $$aCOMPDYN 2017 - 6th International Thematic Conference$$cRhodes Island (GR)$$d2017-06-15 / 2017-06-17$$gCOMPDYN2017
000021671 720__ $$aGatti, Filippo$$iPaolucci, Roberto$$iClouteau, Didier$$iCorrêa, Lucio De Abreu$$iLopez-Caballero, Fernando
000021671 8560_ $$ffischerc@itam.cas.cz
000021671 8564_ $$s2535106$$uhttps://invenio.itam.cas.cz/record/21671/files/17465.pdf$$yOriginal version of the author's contribution as presented on CD, section: [MS26] The SINAPS@ French research project on integrated seismic risk assessment for nuclear safety
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000021671 962__ $$r21500
000021671 980__ $$aPAPER