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Lessons learned from two case histories of seismic microzonation in Italy |
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| Authors: | Filippo Santucci de Magistris Anna d’Onofrio Augusto Penna Rodolfo Puglia Francesco Silvestri |
| Institution: | 1. Structural and Geotechnical Dynamics Laboratory StreGa, Di.B.T. Department, University of Molise, via Duca degli Abruzzi, 86039, Termoli, CB, Italy 2. DICEA Department, University of Naples Federico II, via Claudio 21, 80125, Naples, Italy 3. Sezione di Milano, Istituto Nazionale di Geofisica e Vulcanologia, via Bassini 15, 20133, Milan, Italy |
| Abstract: | The prediction of the variability of the seismic ground motion in a given built-up area is considered an effective tool to plan appropriate urban development, to undertake actions on seismic risk mitigation and to understand the damage pattern caused by a strong-motion event. The procedures for studying the seismic response and the seismic microzonation of an urban area are well established; nevertheless, some controversial points still exists and are discussed here. In this paper, the selection of a reference input motion, the construction of a subsoil model and the seismic response analysis procedures are discussed in detail, based on the authors’ experience in two Italian case histories: the seismic microzonation of the city of Benevento, which was a predictive study, and the simulation of seismic response and damage distribution in the village of San Giuliano di Puglia, which was a retrospective analysis. |
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