• ground shaking scenarios at the town of vicoforte, italy

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    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 884
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     vicoforte is a small town in northern italy, which hosts a cathedral with the world's largest elliptical dome. the name of the basilica is “regina montis regalis” and it is of extraordinary architectural and structural importance. the main objective of this study is the definition of the seismic hazard at the site of vicoforte following a deterministic approach. although vicoforte is located in an area of moderate seismicity, the calculation of the most unfavourable seismic ground shaking scenarios is of great interest due to the importance of the basilica and its vulnerability to even a moderate seismic excitation.

    the closest active faults to vicoforte were identified in order to simulate the potentially most severe ground shaking scenarios compatibly with the tectonic and seismic setting of the region. subsequently, numerical simulations were conducted through finite faults numerical models using two different approaches: the extended kinematic source model of hisada and bielak [24] and the stochastic method of motazedian and atkinson [38]. they, respectively, simulate the low and high frequency ranges of predicted ground motion. the numerical models used for the simulations were calibrated by a comparison between synthetic results and recorded data. a parametric study was finally carried out to identify the most critical fault rupture mechanisms.

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