The paper contains two parts. In the first one, the seismic hazard on the Italian territory, as given by the current Italian structural design code, published in 2008, is discussed. Hazard curves, given by the Italian code in a tabular form, are fitted with a single non-linear model and it is shown that a more compact, simple and user-ready territorial hazard description can be applied. The model is valid for both the bedrock and the surface seismic hazards, and is accurate. The surface seismic hazard is computed with a local amplification mapping, which is now well detailed over the entire territory. Departing from these results, in the second part the territorial seismic risk for the ultimate limit state is computed via a parametric fragility curve. From the results, it can be inferred that the codes need further factors calibration, with the aims of guaranteeing both territorially uniform reliability levels, and the traditionally assumed target reliability levels, e.g. those stated in the Eurocodes.

A synthetic formulation for the Italian seismic hazard and code implications for the seismic risk / Vanzi, I; Marano, GIUSEPPE CARLO; Monti, Giorgio; Nuti, C.. - In: SOIL DYNAMICS AND EARTHQUAKE ENGINEERING. - ISSN 0267-7261. - 77:(2015), pp. 111-122. [10.1016/j.soildyn.2015.05.001]

A synthetic formulation for the Italian seismic hazard and code implications for the seismic risk

MONTI, Giorgio;
2015

Abstract

The paper contains two parts. In the first one, the seismic hazard on the Italian territory, as given by the current Italian structural design code, published in 2008, is discussed. Hazard curves, given by the Italian code in a tabular form, are fitted with a single non-linear model and it is shown that a more compact, simple and user-ready territorial hazard description can be applied. The model is valid for both the bedrock and the surface seismic hazards, and is accurate. The surface seismic hazard is computed with a local amplification mapping, which is now well detailed over the entire territory. Departing from these results, in the second part the territorial seismic risk for the ultimate limit state is computed via a parametric fragility curve. From the results, it can be inferred that the codes need further factors calibration, with the aims of guaranteeing both territorially uniform reliability levels, and the traditionally assumed target reliability levels, e.g. those stated in the Eurocodes.
2015
Code calibration; Reliability; Seismic hazard; Seismic risk; Structural safety; Surface spectra; Geotechnical Engineering and Engineering Geology; Civil and Structural Engineering; Soil Science
01 Pubblicazione su rivista::01a Articolo in rivista
A synthetic formulation for the Italian seismic hazard and code implications for the seismic risk / Vanzi, I; Marano, GIUSEPPE CARLO; Monti, Giorgio; Nuti, C.. - In: SOIL DYNAMICS AND EARTHQUAKE ENGINEERING. - ISSN 0267-7261. - 77:(2015), pp. 111-122. [10.1016/j.soildyn.2015.05.001]
File allegati a questo prodotto
File Dimensione Formato  
Vanzi_Synthetic_2015.pdf

solo gestori archivio

Tipologia: Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza: Tutti i diritti riservati (All rights reserved)
Dimensione 4.75 MB
Formato Adobe PDF
4.75 MB Adobe PDF   Contatta l'autore

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/881263
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 41
  • ???jsp.display-item.citation.isi??? 31
social impact