Engineering Application of Near-Field Strong Motion Calculations

该项目开发了近场地面运动计算的数值能力，并估计了特定场地条件下的强运动传播。数值方法采用具有传递边界条件的有限元格式。然后，将根据可用的解析解和来自以下阵列的可用现场数据来验证结果：1979年帝国谷地震的El Centro记录、台湾罗东地震的Smart-1数字记录、Parkfield强震阵列数据和由南加州大学收集的洛杉矶阵列数据。这一研究结果将有助于提高对近场地面运动的认识，并对大地震期间的强地面运动进行预测。结果将被翻译成一种易于在地震工程实践(选址)中使用的形式。

This project develops a numerical capability for near field ground motion calculations and estimates the strong motion propagation for specific site conditions. The numerical approach uses a finite element scheme with transmitting boundary provision. The results will then be verified based on available analytical solutions and available field data from the following arrays: El Centro recordings of the Imperial Valley earthquake in 1979, Smart-1 digital recordings of Lotung (Taiwan) earthquakes, Parkfield strong motion array data, and Los Angeles array data collected by USC. The results of this study will help to improve understanding of near field ground motions and predict strong ground motions during large earthquakes. The results will be translated in a form that can be readily used in earthquake engineering practice (Siting).