Pulse identification for near-fault earthquake ground motion using acceleration, velocity and displacement time histories

摘要

In this study, a pulse identification scheme for identifyingconventional velocity pulses in near-fault earthquake groundmotions is expanded with modified pulse definitions for identifyingpulses by analyzing the acceleration and displacementtime histories as well. Application of the proposed schemeto a large database of near-fault records shows the varyingnature of pulses identified by the either approaches. Suchobservations support the case for using multiple pulses foradequately characterizing near-fault earthquake ground motions.