Preservation of Velocity Pulses in Response Spectral Matching
نویسنده
چکیده
Response spectral matching is a process in which a real recorded earthquake ground motion is modified such that its response spectrum matches a desired target spectrum across a range of periods. Spectral matching algorithms aim to minimise artificial adjustments introduced to the seed, such that original non-stationary characteristics, such as velocity pulses commonly observed in ground motions recorded in the near-fault region, of are preserved. In this study, spectral matching of pulse-like records is carried out using two programs used in industry (RspMatch2005 and Oasys Sigraph), with target spectra that account for the presence of pulses, and for two different pulse periods. The performance of the programs is compared, and typical problems encountered in matching pulse-like ground motions are summarised.
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