Sensitivity of structural damage to earthquake ground motion scenarios. The Torrevieja earthquake case study

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Title: Sensitivity of structural damage to earthquake ground motion scenarios. The Torrevieja earthquake case study
Authors: Agea-Medina, Noelia | Molina-Palacios, Sergio | Lang, Dominik H. | Ferreiro Prieto, Juan Ignacio | Huesca Tortosa, José Antonio | Galiana-Merino, Juan José | Soler Llorens, Juan Luis
Research Group/s: Grupo de Ingeniería y Riesgo Sísmico (GIRS) | Arquitectura - Composición Arquitectónica (CA01) | Grupo de Investigación Aplicada de Expresión Gráfica (INVESGRAFICA) | Grupo de Investigación en Restauración Arquitectónica de la Universidad de Alicante. GIRAUA-CICOP
Center, Department or Service: Universidad de Alicante. Departamento de Ciencias de la Tierra y del Medio Ambiente | Universidad de Alicante. Departamento de Expresión Gráfica, Composición y Proyectos | Universidad de Alicante. Departamento de Construcciones Arquitectónicas | Universidad de Alicante. Departamento de Física, Ingeniería de Sistemas y Teoría de la Señal
Keywords: Analytical method | Earthquake damage | Epistemic uncertainty | Seismic risk | Seismic vulnerability
Knowledge Area: Física de la Tierra | Expresión Gráfica en la Ingeniería | Construcciones Arquitectónicas | Teoría de la Señal y Comunicaciones
Issue Date: 2018
Publisher: WIT Press
Citation: International Journal of Computational Methods and Experimental Measurements. 2018, 6(5): 921-932. doi:10.2495/CMEM-V6-N5-921-932
Abstract: Structural damage computation using analytical methods requires the knowledge of the ground motion distribution in the urban area caused by a given earthquake. In this manuscript, the ground motion estimates (i.e. PGA and spectral acceleration values) are obtained through simulation of the 1829 Torrevieja earthquake using the NGA ground motion prediction equations (GMPE). The building stock under consideration has been classified according to the methodology presented in RISK-UE. The computations have been done using the last version of the software SELENA. The epistemic uncertainties of the analysis are accounted for by means of a logic tree computation scheme. The logic tree has two branches for the uncertainty in the earthquake scenario, two branches for the GMPEs and three branches to consider the uncertainties in average shear wave velocity Vs30 (soil conditions). Results indicate large differences derived for the different earthquake loss scenarios (ELE) obtained following each branch of the logic tree. The greatest structural damages and losses are obtained when the earthquake is located in the Bajo Segura fault zone, using Campbell and Bozorgnia GMPE and for soft soil conditions. This article has allowed us to see how the different possible input parameters for ELE should be carefully analyzed for each case study and the importance of providing ELE results in terms of mean values with corresponding uncertainty ranges.
Sponsor: The present research has benefited from funding of the Ministerio de Economía, Industria y Competitividad through research project CGL2016-77688-R and the Generalitat Valenciana through the research project AICO/2016/098.
ISSN: 2046-0546 (Print) | 2046-0554 (Online)
DOI: 10.2495/CMEM-V6-N5-921-932
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2018 WIT Press
Peer Review: si
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Appears in Collections:INV - GIRS - Artículos de Revistas
INV - CA01 - Artículos de Revistas
INV - GIRAUA-CICOP - Artículos de Revistas
INV - INVESGRAFICA - Artículos de Revistas

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