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Energy-compatible and spectrum-compatible (ECSC) ground motion simulation using wavelet packets

机译：使用小波包的能量兼容和频谱兼容（ECSC）地面运动模拟

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A stochastic ground-motion simulation and modification technique is developed to generate energy-compatible and spectrum-compatible (ECSC) synthetic motions through wavelet packet characterization and modification in both frequency and time domains. The ECSC method significantly advances traditional spectral matching approaches, because it generates ground motions that not only match the target spectral accelerations, but also match Arias intensity build-up and significant durations. The great similarity between the ECSC simulated motions and the actual recorded motions is demonstrated through one-to-one comparison of a variety of intensity measures. Extensive numerical simulations were also performed to validate the performance of the ECSC ground motions through nonlinear analyses of elasto-plastic oscillators. The ECSC method can be easily implemented in the generalized conditional intensity measure framework by directly simulating a set of motions following a targeted distribution of multiple intensity measures. Therefore, the ECSC method has great potential to be used in performance-based earthquake design and analysis. Copyright (c) 2017 John Wiley & Sons, Ltd.
机译：通过在频域和时域中对小波包进行表征和修正，开发了一种随机的地面运动模拟和修正技术，以生成能量兼容和频谱兼容（ECSC）的合成运动。 ECSC方法大大提高了传统的频谱匹配方法，因为它生成的地面运动不仅与目标频谱加速度匹配，而且与Arias强度建立和重要的持续时间匹配。 ECSC模拟运动与实际记录的运动之间的巨大相似性通过各种强度测量值的一对一比较得到了证明。还进行了广泛的数值模拟，以通过弹塑性振荡器的非线性分析来验证ECSC地震动的性能。通过直接模拟一组针对多个强度测量的目标分布的运动，可以在通用条件强度测量框架中轻松实现ECSC方法。因此，ECSC方法在基于性能的地震设计和分析中具有巨大的潜力。版权所有（c）2017 John Wiley＆Sons，Ltd.

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