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首页> 外文期刊>Bulletin of earthquake engineering >Ground motion models for the new seismic hazard model of Italy (MPS19): selection for active shallow crustal regions and subduction zones
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Ground motion models for the new seismic hazard model of Italy (MPS19): selection for active shallow crustal regions and subduction zones

机译:意大利新地震危险模型的地面运动模型(MPS19):用于活跃浅地壳区和俯冲区的选择

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The aim of this paper is to identify the ground motion models (GMMs), applicable in active shallow crustal regions (ASCRs) and subduction zones (SZs), to be used for the new release of the seismic hazard model of Italy (MPS19) for peak ground acceleration and 12 ordinates of the acceleration response spectra (5% damping) in the period range 0.05-4 s. The steps to achieve such goal are: (1) a pre-selection of the GMMs that takes into account the suitability for the application to the Italian territory and the fulfillment of the new hazard model requirements; (2) the assessment of a proper scoring of the pre-selected GMMs using strong-motion data recorded in Italy; (3) the selection of the GMMs to be used in the hazard calculation. The final set of GMMs describes satisfactorily the epistemic uncertainty of the ground shaking process, privileging the simplicity and flexibility of the functional form. Finally, the weights of the selected GMMs are assigned combining the results of the scoring and the weights obtained through an experts' elicitation.
机译:本文的目的是识别适用于有源浅地壳区域(ASCRS)和俯冲区(SZS)的地面运动模型(GMM),以用于意大利(MPS19)的地震危险模型的新释放峰接地加速度和12个加速度响应光谱(5%阻尼)的峰值接地加速度和0.05-4秒。实现此类目标的步骤是:(1)预先选择GMM,以考虑到应用于意大利地区的适用性和新的危险模型要求的履行; (2)评估使用意大利记录的强运动数据进行预选的GMMS的适当评分; (3)选择GMM以在危险计算中使用。最终GMMS描述了令人满意的地面摇动过程的认知不确定性,特权具有功能形式的简单性和灵活性。最后,将所选GMM的权重分配组合通过专家诱导获得的评分结果和权重。

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