Critical Characterization and Modeling of Pulse-Like Near-Field Strong Ground Motion
作者： Izuru Takewaki , Abbas Moustafa , Kohei Fujita
DOI: 10.1007/978-1-4471-4144-0_4
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摘要: Pulse-like (also known as resonant, cycloidal pulses, or impulse-like) ground motion has been observed in near-field near-fault near-source) records with directivity focusing fling effects. This class of is significantly influenced by the rupture mechanism, substantially different from ordinary records, and can be characterized following features [1, 2, 3, 4, 5, 6, 7, 8, among others]: (1) long period large amplitudes, (2) high peak velocity (PGV)/peak acceleration (PGA) displacement (PGD)/PGA ratios, (3) unusual response spectra shapes, (4) concentration energy one very few pulses.
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