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| Titel: |
Site Effects Analyses in the Old City Center of Trieste (NE Italy) Using Accelerometric Data |
| Auteur: |
Fitzko, Francesca Costa, Giovanni Delise, Andrea Suhadolc, Peter |
| Verschenen in: |
Journal of earthquake engineering |
| Paginering: | Jaargang 11 (2007) nr. 1 pagina's 33-48 |
| Jaar: |
2007-01 |
| Inhoud: |
The influence of local geology and soil conditions on the intensity and the amplification of ground shaking are well known. Part of the old city center of Trieste is built on the site of a former salina, placed at a river mouth and is characterized by soft sediments several tens of meters thick. A new accelerometric station has been recently installed in a historical building, in order to analyse earthquake-induced site amplifications. This station has recorded five regional earthquakes and the related records are compared to those obtained at a nearby bedrock-installed accelerometeric station. Fourier and response spectra for all components are computed and both the H/V ratio and the reference station techniques are used to assess site effects. Noise measurements performed in the historical building, where the accelerometer is located, confirm these results. Relevant amplifications are detected in the frequency range of 2-4 Hz, particularly important for the type of buildings present in this part of the city. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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