Regional ground‐motion simulation is important for postearthquake seismic damage assessment. Herein, a ground‐motion simulation method using recorded ground motions is proposed. Inverse‐distance‐weighted interpolation of the response spectra is performed to obtain the response spectrum at the target location. Then the ground‐motion time history for the target location is obtained by correcting the nearest‐station records using the continuous wavelet transform. An evaluation measure for the accuracy of the predicted ground motion, that is, the response‐spectrum error, is introduced, and its relationship with the seismic damage of regional buildings is determined via a city‐scale nonlinear time‐history analysis. The response‐spectrum errors under different site conditions, distances, and elevation differences are analyzed. The application conditions for the proposed method are subsequently outlined. The Tsinghua campus is examined as a case study to validate the method. Finally, downtown San Francisco under an Mw 7.0 simulated earthquake on the Hayward fault is selected as an example to demonstrate the proposed method. The proposed method overcomes the difficulties in determining the intrastation ground motions and provides valuable input to postearthquake seismic damage assessment.

中文翻译：

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使用记录的地面运动进行区域地面运动模拟

区域地震动模拟对于震后地震破坏评估非常重要。在此，提出了一种利用记录的地面运动进行地面运动模拟的方法。执行响应谱的反距离加权插值，以获得目标位置的响应谱。然后，通过使用连续小波变换对最近的站点记录进行校正，可以获得目标位置的地面运动时间历史记录。引入了对预测地面运动准确性的评估方法，即响应频谱误差，并通过城市规模的非线性时间历史分析确定了其与区域建筑物的地震破坏的关系。分析了不同场地条件，距离和海拔差异下的响应频谱误差。随后概述了所提出的方法的应用条件。通过对清华校区进行案例研究来验证该方法。最后，以在海沃德断裂带上发生的7.0级模拟地震为例，在旧金山市中心进行了演示。所提出的方法克服了确定站内地面运动的困难，并为地震后震害评估提供了有价值的输入。