Seismic amplification of ground motion due to topographic effects at the Nicastro cliff (Calabria, Southern Italy) is investigated. Linear 2D numerical analyses are carried out on representative cross-sections using FLAC finite difference computer code. Additionally linear 1D analyses accounting only for stratigraphic effect are also carried out. A topographic amplification factor at the crest is then obtained taking the ratio of 2D over 1D horizontal peak acceleration and Fourier spectrum. The calculated amplification factors are compared with those recommended by EC8.
Numerical study of topography effects at the Nicastro (Southern Italy) cliff and comparison with EC-8 recommendations
PAGLIAROLI, Alessandro;
2006-01-01
Abstract
Seismic amplification of ground motion due to topographic effects at the Nicastro cliff (Calabria, Southern Italy) is investigated. Linear 2D numerical analyses are carried out on representative cross-sections using FLAC finite difference computer code. Additionally linear 1D analyses accounting only for stratigraphic effect are also carried out. A topographic amplification factor at the crest is then obtained taking the ratio of 2D over 1D horizontal peak acceleration and Fourier spectrum. The calculated amplification factors are compared with those recommended by EC8.File in questo prodotto:
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