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首页> 外文期刊>Earthquake Engineering & Structural Dynamics >Validation of (not-historical) large-event near-fault ground-motion simulations for use in civil engineering applications
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Validation of (not-historical) large-event near-fault ground-motion simulations for use in civil engineering applications

机译：用于土木工程应用的（非历史）大型故障地面运动模拟的验证（非历史）大型故障地面运动模拟

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Ground-motion simulations generated from physics-based wave propagation models are gaining increasing interest in the engineering community for their potential to inform the performance-based design and assessment of infrastructure residing in active seismic areas. A key prerequisite before the ground-motion simulations can be used with confidence for application in engineering domains is their comprehensive and rigorous investigation and validation. This article provides a four-step methodology and acceptance criteria to assess the reliability of simulated ground motions of not historical events, which includes (1) the selection of a population of real records consistent with the simulated scenarios, (2) the comparison of the distribution of Intensity Measures (IMs) from the simulated records, real records, and Ground-Motion Prediction Equations (GMPEs), (3) the comparison of the distribution of simple proxies for building response, and (4) the comparison of the distribution of Engineering Demand Parameters (EDPs) for a realistic model of a structure. Specific focus is laid on near-field ground motions (10km) from large earthquakes (M(w)7), for which the database of real records for potential use in engineering applications is severely limited. The methodology is demonstrated through comparison of (2490) near-field synthetic records with 5 Hz resolution generated from the Pitarka et al (2019) kinematic rupture model with a population of (38) pulse-like near-field real records from multiple events and, when applicable, with NGA-W2 GMPEs. The proposed procedure provides an effective method for informing and advancing the science needed to generate realistic ground-motion simulations, and for building confidence in their use in engineering domains.
机译：从基于物理的波传播模型产生的地面运动模拟正在增加工程界的兴趣越来越令他们通知基于性能的设计和居住在主动地震区域的基础设施的评估。在地面运动模拟之前的一个关键前提条件可以在工程域中的应用自信中使用，这是他们的全面和严格的调查和验证。本文提供了四步方法和验收标准，以评估不是历史事件的模拟地面运动的可靠性，其中包括（1）与模拟场景一致的真实记录的选择，（2）比较从模拟记录，实际记录和地面运动预测方程（GMPE）的强度措施（IMS）分布，（3）对建筑物响应的简单代理分布的比较，以及（4）分布的比较工程需求参数（EDP）实现结构的现实模型。从大地震（M（W）7）的近场地面运动（<10km）上铺设了特定的焦点，其中工程应用潜在应用程序的实际记录数据库受到严重限制。通过比较（2490）近场综合记录来证明方法，从Pitarka等人（2019）型脉冲破裂模型中产生了5 Hz分辨率，具有来自多个事件的（38）脉冲的近场真实记录的群体，适用于NGA-W2 GMPES。该拟议的程序提供了有效的方法，用于了解和推进生成现实地面运动模拟所需的科学，以及在工程域中的使用中建立信心。

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