Seismic input characterization for some sites in Italy

D. Rinaldis, P. Clemente

Research output: Contribution to conferencePaper

Abstract

The seismic input characterization is the first task in the analysis of the seismic behaviour of a structure. The definition of the seismogenetic sources, earthquake catalogue and site characteristics are preliminary to the study. The seismic input may be represented by means of a response spectrum or time-histories. There are many methodologies to produce response spectra and/or input time histories for a given site. The approach may be probabilistic, strictly deterministic or a mixture of both. A strictly deterministic approach is based on the identification of the maximum credible earthquake within an accepted return period. This can be achieved by taking into account both the seismicity historically observed at the site and the features of the seismic sources able to affect the site. The probabilistic hazard assessment is based on Cornell's methodology; it requires the definition of homogeneous seismic sources, their characterization in terms of maximum expected magnitude and Gutenberg-Richter relation (recurrence of events in different magnitude classes) and the choice of an attenuation law for seismic energy, according to the selected ground motion parameter. The methodology proposed by ENEA perform all tasks of the deterministic approach but requires also the comparison between the Fourier amplitudes of the selected time histories with the Uniform Hazard Spectrum (UHS) recovered from the probabilistic approach by means of a statistical index indicating the best fitting. Two case studies are shown. © 2013 WIT Press.
Original languageEnglish
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event9th World Conference on Earthquake Resistant Engineering Structures, ERES 2013 - , Spain
Duration: 1 Jan 2013 → …

Conference

Conference9th World Conference on Earthquake Resistant Engineering Structures, ERES 2013
CountrySpain
Period1/1/13 → …

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All Science Journal Classification (ASJC) codes

  • Architecture
  • Civil and Structural Engineering
  • Building and Construction
  • Arts and Humanities (miscellaneous)
  • Safety, Risk, Reliability and Quality
  • Computer Science Applications

Cite this

Rinaldis, D., & Clemente, P. (2013). Seismic input characterization for some sites in Italy. Paper presented at 9th World Conference on Earthquake Resistant Engineering Structures, ERES 2013, Spain. https://doi.org/10.2495/ERES130021