Generation of response-spectrum-compatible artificial earthquake accelerograms with random joint time-frequency distributions
作者： Pierfrancesco Cacciola , Irmela Zentner
DOI: 10.1016/J.PROBENGMECH.2011.08.004
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摘要: Abstract The sustained dissemination of databases recorded accelerograms along with the increasing number strong-motion networks installed worldwide revealed that current methodologies for simulating artificial earthquakes possess drawback simulated time–histories do not manifest large variability seismological parameters as well joint-time frequency distribution observed natural accelerograms. As a consequence, dispersion output structural response analysis can be underestimated. In order to take into account methodology earthquake matching mean and ± standard deviation spectra is proposed in this paper. This determined from attenuation relationships or evaluated selected database. procedure requires definition an evolutionary response-spectrum-compatible power spectral density function random parameters. It shown paper ground motion will similar one records.
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