Wavelet-Based Method for Generating Nonstationary Artificial Pulse-Like Near-Fault Ground Motions
作者： G. Ghodrati Amiri , A. Abdolahi Rad , N. Khanmohamadi Hazaveh
DOI: 10.1111/MICE.12110
关键词:
摘要: A method to generate a suite of artificial near-fault ground motion time histories for specified earthquakes is presented. wavelet-based nonstationary (WB-NS) model has been employed effectively capture the time-varying frequency content particular acceleration record and continuous wavelet transform used simulate largest velocity pulse. Furthermore, an iterative procedure using discrete utilized modify earthquake energy-compatible motion. Eventually, accelerogram achieved via superposition coherent extracted pulse with random corresponding WB-NS multiplied by time-modulating envelope function. The effectiveness demonstrated comparing spectral response Arias intensity curves simulated accelerograms those real records.
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