Generation of artificial earthquake accelerograms compatible with mean and mean ± standard deviation

Pierfrancesco Cacciola, Irmela Zentner

Research output: Chapter in Book/Conference proceeding with ISSN or ISBNConference contribution with ISSN or ISBN

Abstract

The sustained dissemination of database of recorded accelerograms along with the increasing number of strong-motion networks installed worldwide revealed that the current methodologies for simulating artificial earthquakes possess the drawback that the simulated time-histories do not manifest the variability observed for natural accelerograms. As a consequence, the dispersion of resulting structural response analysis can be underestimated. In order to take into account the natural variability of earthquakes, a methodology for simulating artificial earthquake accelerograms matching mean and mean ± standard deviation response spectra is proposed in this paper. This dispersion can be determined from attenuation relationships or evaluated from selected accelerograms of a strong-motion database. The procedure requires the definition of an evolutionary response-spectrum-compatible power spectral density function with random parameters. The simulated ground motion time-histories will manifest variability so that one observed in natural records.
Original languageEnglish
Title of host publicationProceedings of the Sixth International Conference on Computational Stochastic Mechanics (CSM6)
EditorsG. Deodatis, P.D. Spanos
Place of PublicationSingapore
PublisherResearch Publishing
Pages0-0
Number of pages1
ISBN (Print)9789810876197
DOIs
Publication statusPublished - 1 Jun 2010
EventProceedings of the Sixth International Conference on Computational Stochastic Mechanics (CSM6) - Rhodes, Greece, 13-16 June, 2010
Duration: 1 Jun 2010 → …

Conference

ConferenceProceedings of the Sixth International Conference on Computational Stochastic Mechanics (CSM6)
Period1/06/10 → …

Keywords

  • Ground motion
  • Variability
  • Response spectra
  • Simulation

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  • Cite this

    Cacciola, P., & Zentner, I. (2010). Generation of artificial earthquake accelerograms compatible with mean and mean ± standard deviation. In G. Deodatis, & P. D. Spanos (Eds.), Proceedings of the Sixth International Conference on Computational Stochastic Mechanics (CSM6) (pp. 0-0). Research Publishing. https://doi.org/10.3850/978-981-08-7619-7_P014