Abstract
ABSTRACT A method is proposed to quantitatively capture the unique characteristics of strong ground motions using idealized pulses. The pulse motions described here use limited parameters (PGA or PGV and duration of pulse) in contrast to the methodologies involving several parameters and assumptions. This simple method also provides an advantage to specify hazard in regions where a few recorded ground motions are available; ballpark values of pulse parameters can be used to arrive at the response spectra required in the seismic design. The physics of ground shaking is captured here mathematically using idealized pulses only, without any “random shaking.”
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