Skip to main content
Ir a la página de inicio de la Comisión Europea (se abrirá en una nueva ventana)
español español
CORDIS - Resultados de investigaciones de la UE
CORDIS
Contenido archivado el 2024-06-11

Towards an integrated strong motion modelling : comparison of source, path and site effects on the example of euroseistest data

Objetivo


Foreseen Results

This project is thus expected to produce carefully validated computer codes for ground motion modelling, with due consideration to source, path and site effects, which should in turn result in an improved assessment of seismic actions for civil engineering structures.
Recent destructive earthquakes have repeatedly shown that one of important cause of the occurrence of disaster (even in developed countries) was the underestimation of ground motion, or of certain of their characteristics. The research objective of this proposal is the improvement of the ground motion estimates through a careful and validated integration of already existing numerical modelling techniques, that take proper account of all the physical phenomena affecting the amplitude and spectral characteristics of seismic waves, without overemphasizing or minimizing any of them.

One important goal of the present proposal is thus to merge the various numerical techniques developed separately in each of the 4 involved teams, and whose original aim was to investigate one particular effect (various source effects or crustal effects, or one category of site effects): these techniques include ray methods, finite-difference (FD) techniques, discrete wave-number method (DWN), matrix (1D) methods, empirical Green's function methods (EGF) and non-linear methods (NL). However, in order to have physical constraints on the way to merge these techniques, and on the respective importance of the effects they separately model, this integration will be extensively tested against high quality, well constrained instrumental data.

The research activities will start with a careful selection of some data sets from the weak and moderate events recorded by the Volvi lake arrays, and the translation of all the seismological, geophysical, geological and geotechnical information into appropriate models for numerical processing. The respective influence and importance of source and path effects will be investigated through the successive use of point source ray methods, point source DWN methods with instantaneous or finite source- function, extended source with deterministic or stochastic rupture process, and the comparison of their results with the actual records obtained at site-effect-free locations (unweathered rock sites). Investigations on site effects will focus on the assessment of the importance of the diffraction effects of local heterogeneities (comparison between 1D, 2D and 3D estimates, and with records obtained for weak events), and on the assessment of the motion levels beyond which non-linear effects become important. The integrated modelling of selected weak and moderate events (as well as real strong events in case of their occurrence in the life of the project) should then result in the identification of the deterministically predictable and non-predictable ground motion features, through a careful check of how the available data explain (or do not explain) the ground motion.

Ámbito científico (EuroSciVoc)

CORDIS clasifica los proyectos con EuroSciVoc, una taxonomía plurilingüe de ámbitos científicos, mediante un proceso semiautomático basado en técnicas de procesamiento del lenguaje natural. Véas: El vocabulario científico europeo..

Para utilizar esta función, debe iniciar sesión o registrarse

Programa(s)

Programas de financiación plurianuales que definen las prioridades de la UE en materia de investigación e innovación.

Tema(s)

Las convocatorias de propuestas se dividen en temas. Un tema define una materia o área específica para la que los solicitantes pueden presentar propuestas. La descripción de un tema comprende su alcance específico y la repercusión prevista del proyecto financiado.

Convocatoria de propuestas

Procedimiento para invitar a los solicitantes a presentar propuestas de proyectos con el objetivo de obtener financiación de la UE.

Datos no disponibles

Régimen de financiación

Régimen de financiación (o «Tipo de acción») dentro de un programa con características comunes. Especifica: el alcance de lo que se financia; el porcentaje de reembolso; los criterios específicos de evaluación para optar a la financiación; y el uso de formas simplificadas de costes como los importes a tanto alzado.

CSC - Cost-sharing contracts

Coordinador

UNIVERSITE JOSEPH FOURIER - GRENOBLE 1
Aportación de la UE
Sin datos
Dirección
Rue de la Piscine 1381 Domaine Universitaire Bètim
38041 Grenoble
Francia

Ver en el mapa

Coste total

Los costes totales en que ha incurrido esta organización para participar en el proyecto, incluidos los costes directos e indirectos. Este importe es un subconjunto del presupuesto total del proyecto.

Sin datos

Participantes (3)

Mi folleto 0 0