Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
269130 | Engineering Structures | 2008 | 12 Pages |
Real accelerograms are nowadays an emerging option for defining the input to geotechnical and structural dynamic analyses. A key issue is the selection of appropriate acceleration time-histories since seismic design code recommendations are limited in this respect and also well-established procedures are not available. In the paper a simple approach for selecting and scaling a set of real accelerograms was followed which took into consideration magnitude and distance search windows, record-to-record variability of spectral ordinates with respect to the target spectrum and the prevention of seismic event domination within a set. This procedure was applied to a real case, i.e. the selection of real accelerograms representative of the March 1638 Calabria earthquake that severely struck the historical town of Nicastro (Southern Italy). The selected time-histories represent an appropriate input for the numerical response analyses of the site to adequately evaluate the seismic hazard, which is a fundamental step of seismic risk evaluation.