Simulated ground motion records have recently become major alternatives to real records. In this study, differences between simulated and real record sets are evaluated in terms of alternative ground motion intensity measures. As case studies, two regions in Turkey (Erzincan and Duzce) are considered. A large set of simulated records involving a wide range of magnitudes, source-to-site distances, and site properties is prepared. The fundamental seismological properties of stochastically-simulated records are compared with those of actual motions. A real ground motion dataset for each region with consistent source, distance, and site properties is formed. Alternative intensity parameters are computed for real and simulated sets and evaluated through statistical analyses involving Kolmogorov–Smirnov test. Varying patterns are observed for different levels of intensity parameters. Correlations of intensity measures with maximum inelastic displacements obtained from single-degree-of-freedom models are investigated. Better correlations are observed for simulated data emphasizing significance of region-specific ground motions.

模拟的地面运动记录最近已成为真实记录的主要替代方法。在这项研究中，模拟的记录集和真实的记录集之间的差异是根据替代的地面运动强度测度来评估的。作为案例研究，考虑了土耳其的两个地区（埃尔津坎和杜兹塞）。准备了一组涉及范围广泛的量级，源到站点的距离以及站点属性的模拟记录。将随机模拟记录的基本地震特性与实际运动的基本地震特性进行了比较。形成了具有一致源，距离和站点属性的每个区域的真实地面运动数据集。计算真实和模拟集的替代强度参数，并通过涉及Kolmogorov–Smirnov检验的统计分析进行评估。对于不同水平的强度参数，观察到变化的模式。研究了强度度量与从单自由度模型获得的最大非弹性位移的相关性。对于强调区域特定地面运动意义的模拟数据，观察到了更好的相关性。