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dc.contributor.authorSalinas Naval, Víctor
dc.contributor.authorCaselles Magallón, Josep Oriol
dc.contributor.authorPérez Gracia, María de la Vega
dc.contributor.authorSantos Assunçao, Sonia
dc.contributor.authorClapes Boixader, Jaime
dc.contributor.authorPujades Beneit, Lluís
dc.contributor.authorGonzález Drigo, José Ramón
dc.contributor.authorCanas Torres, José Antonio
dc.contributor.authorMartínez Sánchez, Joan
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria del Terreny, Cartogràfica i Geofísica
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Resistència de Materials i Estructures a l'Enginyeria
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Organització d'Empreses
dc.coverage.spatialeast=2.1700471; north=41.3870154; name=Barcelona, Espanya
dc.identifier.citationSalinas, V. [et al.]. Nanozonation in dense cities : testing a combined methodology in Barcelona City (Spain). "Journal of earthquake engineering", 02 Gener 2014, vol. 18, núm. 1, p. 90-112.
dc.description.abstractMicrozonation is widely used in seismic risk evaluations to define the predominant period values, which are usually associated with extended areas of a few hundred meters. However, the representative values corresponding to these areas are obtained from few measurements in each area. Thereby, results are accurate only in the case of depth-dependent soils. However, not detected narrow and sharp lateral changes in soil are potentially the cause of imprecision and could be a source of specific errors. This article aims to present several tests conducted in order to emphasise the importance of accurate selection of points, to underscore the necessity of more precise and detailed evaluations, and to suggest a possible methodology to select the most appropriate data acquisition points. Results highlight the need to divide microzonation areas into smaller zones for a precise evaluation in locations where sudden changes in soil characteristics exist. Therefore, in such sites the requirement of nanozonation appears; defining zones with the same soil response. Distance between vibration measurements could be the main problem for nanozonation; data acquisition in areas with irregular geology can be time consuming when a precise analysis is required. In the most complicated environments or in dense cities, it could even be unfeasible. Consequently, it is necessary to establish a functional methodology to adequately distribute the measurement points throughout the area. On this occasion, three sites in Barcelona city were studied. This city is surrounded by mountains at NW, W, and S, and by the Mediterranean Sea at N and E. As a consequence, the shallow geology is characterized by many paleochannels and streams that are currently buried. These geological structures most likely affect the soil response maps, including nanozonation.
dc.format.extent23 p.
dc.subjectÀrees temàtiques de la UPC::Enginyeria civil::Geomàtica::Cartografia
dc.subjectÀrees temàtiques de la UPC::Enginyeria civil::Geologia
dc.subject.lcshGround penetrating radar
dc.subject.otherGround-Penetrating Radar
dc.subject.otherShallow Geology
dc.subject.otherSoil Response
dc.titleNanozonation in dense cities : testing a combined methodology in Barcelona City (Spain)
dc.contributor.groupUniversitat Politècnica de Catalunya. GIES - Geofísica i Enginyeria Sísmica
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (author’s final draft)
local.citation.authorSalinas, V.; Caselles, J.; Perez-Gracia, V.; Santos, S.A.; Clapes, J.; Pujades, L.; Gonzalez-Drigo, J.R.; Canas, J.; Martinez-Sanchez, J.
local.citation.publicationNameJournal of earthquake engineering

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