Abstract Filtered incremental velocity, FIV3, is a recently proposed and very promising intensity measure for seismic collapse risk assessment. However, no ground motion prediction equation currently exists that enables its complete implementation in probabilistic seismic hazard analysis or in seismic performance assessment of structures. This paper presents a model for the estimation of the random horizontal component of FIV3 for stiff soil sites, moment magnitudes between 5 and 8, and Joyner-Boore distances between 0 and 150 km. Results from this study show that the uncertainty in the estimation of FIV3 is considerably lower than the one provided by current models for pseudo-acceleration spectral ordinates. This low dispersion of FIV3 results in a reduction in the uncertainty in the ordinates of seismic hazard curves, which ultimately improves the reliability of the estimation of the collapse risk of structures.

中文翻译：

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滤波增量速度的地震动预测方程，FIV3

摘要 滤波增量速度 FIV3 是最近提出的一种非常有前途的用于地震坍塌风险评估的强度度量。然而，目前还没有地震动预测方程能够在概率地震危险性分析或结构的抗震性能评估中完全实施。本文提出了一个模型，用于估计刚性土壤场地的 FIV3 随机水平分量，力矩大小介于 5 和 8 之间，Joyner-Boore 距离介于 0 和 150 公里之间。这项研究的结果表明，FIV3 估计的不确定性远低于当前伪加速度谱坐标模型提供的不确定性。FIV3 的这种低离散导致地震危险曲线纵坐标的不确定性降低，