Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/6336
DC Field | Value | Language |
---|---|---|
dc.contributor.authorall | Pessina, Vera; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Milano-Pavia, Milano, Italia | en |
dc.contributor.authorall | Fiorini, Emilia; Eucentre, Pavia | en |
dc.contributor.authorall | Paolucci, Roberto; Politecnico Milano | en |
dc.date.accessioned | 2010-12-13T15:12:33Z | en |
dc.date.available | 2010-12-13T15:12:33Z | en |
dc.date.issued | 2010-05-24 | en |
dc.identifier.uri | http://hdl.handle.net/2122/6336 | en |
dc.description.abstract | Surface topography can significantly affect earthquake ground motions, as suggested by many examples of unexpected damage suffered by buildings located on the top of hills, on ridges or along slopes. European and Italian seismic codes suggest topographic aggravation factors in the 1 – 1.4 range to be applied to seismic actions, depending not only on simple morphologic parameters (average slope angle, width and height of the relief) but also on the type of relief (isolated cliff or ridge) and on the location of the site relative to the relief. Furthermore, strongly irregular topographies should be dealt with by a specific study. To provide a practical tool for the identification of critical topographic sites, analyses of high resolution digital elevation models (DEM), with the support of Geographic Information Systems (GIS), are presented in this paper. Simple GIS functions are used to classify critical ranges of inclination, while the identification of valleys and ridges requires more complex procedures. A comparison of different methods for their identification is presented in this work, aiming at finding the most suitable ones for seismic microzonation analyses. Once the critical conditions are synthesized into GIS layers, their proximity to inhabited centres or strategic structures are checked. The resulting maps can be used for topography-related seismic risk assessment at large scale. We present two examples of application of this procedure, with particular attention to the small historical centres located on the Apennine mountains in Central and Southern Italy. | en |
dc.language.iso | English | en |
dc.relation.ispartof | 5th Intern. Conf. on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics and Symposium in honour of professor I. M. Idriss | en |
dc.subject | Topographic amplification effects | en |
dc.subject | seismic microzonation | en |
dc.subject | GIS | en |
dc.title | Gis-based identification of topographic sites in Italy with significant ground motion amplification effects | en |
dc.type | Conference paper | en |
dc.description.status | Published | en |
dc.description.ConferenceLocation | San Diego, Ca, USA | en |
dc.relation.references | NTC [2008]. Norme Tecniche per le Costruzioni. D.M. 14/01/2008, G.U. n. 29 04/02/2008, Suppl. Ord. 30 (in Italian). Cara F., A. Rovelli, G. Di Giulio, F. Marra, T. Braun, G. Cultrera, R. Azzara, E. Boschi [2005] “The role of site effects on the intensity anomaly of San Giuliano di Puglia inferred from aftershocks of the Molise, Central Southern Italy, sequence, November 2002”, Bulletin of the Seismological Society of America, Vol. 95, No. 4,. 1457–1468 pp. CEN [2004]. Eurocode 8: Design of structures for earthquake resistance - Part 5: Foundations, retaining structures and geotechnical aspects, Comité Européen de Normalisation Brussels.. Faccioli E., M. Vanini, L. Frassine [2002] “Complex” Site Effects in Earthquake Ground Motion, including Topography”, Proc.12th European Conference on Earthquake Engineering, London, UK, Paper reference:844 ISTAT [1995] “13° censimento generale della popolazione, 1991. Dati sulle caratteristiche strutturali della popolazione e delle abitazioni”. Ist. Naz. di Statistica, Roma, 515 pp. Jenness J [2006] Topographic Position Index (tpi_jen.avx) extension for ArcView 3.x, v. 1.3a. Jenness Enterprises. Available at: http://www.jennessent.com/arcview/tpi.htm. Paolucci R., E. Faccioli, F. Maggio [1999], “3D Response analysis of an instrumented hill at Matsuzaki, Japan, by a spectral method”, Journal of Seismology, 3, pp. 191-209. Paolucci R. [2002], “Amplification of earthquake ground motion by steep topographic irregularities”, Earthquake Engng Struct. Dyn., 31, pp.1831-1853 (DOI: 10.1002/eqe.192) Scandella L., M. Davì, R. Paolucci, V. Pessina [2008] “Numerical simulation and Gis mapping of seismic amplification due to topographic effects”. Proc. 31st European Seismological Commission (ESC), 7-12 September Crete, Greece Working Group "Indirizzi e criteri generali per la microzonazione sismica" [2008] “Indirizzi e criteri per la microzonazione sismica. Rapporto finale”, Department of Civil Protection, Rome, February 2008, Italy (in Italian). | en |
dc.description.obiettivoSpecifico | 4.1. Metodologie sismologiche per l'ingegneria sismica | en |
dc.description.fulltext | open | en |
dc.contributor.author | Pessina, Vera | en |
dc.contributor.author | Fiorini, Emilia | en |
dc.contributor.author | Paolucci, Roberto | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Milano, Milano, Italia | en |
dc.contributor.department | Eucentre, Pavia | en |
dc.contributor.department | Politecnico Milano | en |
item.openairetype | Conference paper | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | open | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Milano, Milano, Italia | - |
crisitem.author.dept | Politecnico Milano | - |
crisitem.author.orcid | 0000-0002-3772-7030 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Conference materials |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Manuscript_620b.pdf | conference paper | 848.07 kB | Adobe PDF | View/Open |
Page view(s) 50
205
checked on Apr 20, 2024
Download(s) 5
723
checked on Apr 20, 2024