RMS Acceleration and Duration of Strong Ground Motion
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Empirical methods of characterizing recorded strong ground motion have been confined to primarily peak value summaries. There are particular advantages to peak values, specifically the ease with which they can be defined and used. However this use as a means of summarizing a nonstationary process has often been questioned. This work looks into the basic theoretical and empirical properties of the root mean square and duration as a means of characterizing the strong motion acceleration of earthquakes. This coupled means of summarizing ground motion is investigated as a possible alternative characterization of ground motion intensity for use in seismic hazard analysis.
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