A set of Eurocode 8-compatible synthetic time-series as input to dynamic analysis

Aurore Laurendeau (1) , Mathieu Causse (2) , Philippe Guéguen (2) , Mathieu Perrault (2) , Luis Fabian Bonilla (3) , John Douglas (4)

1 Risques - Risques
2 ISTerre - Institut des Sciences de la Terre
3 IFSTTAR/GERS/SV - Séismes et Vibrations
4 BRGM - Bureau de Recherches Géologiques et Minières (BRGM)

Non-linear dynamic analysis of existing or planned structures often requires the use of accelerograms that match a target design spectrum. Here, our main concern is to generate a set of motions with a good level of fit to the Eurocode 8 (EC8) design spectra for France. Synthetic time series are generated by means of a non-stationary stochastic method. To calibrate the distributions of various strong-motion parameters, we first select a reference set of accelerograms for a type B site category from the PEER Ground-Motion Database, which are then adjusted to the target spectrum through wavelet addition. Finally, we analyse non-linear seismic responses of a soil column including pore pressure effects and ductile structures using these records, revealing considerable variability despite the similarities in terms of spectral acceleration.

Mots clés: nonlinear site response; structural response; Eurocode 8(EC8); spectrum-compatible time-histories

Domaines: Planète et Univers [physics]; Sciences de la Terre; Géophysique [physics.geo-ph]; Physique [physics]; Physique [physics]; Géophysique [physics.geo-ph]; Sciences de l'environnement; Milieux et Changements globaux

Aurore Laurendeau, Mathieu Causse, Philippe Guéguen, Mathieu Perrault, Luis Fabian Bonilla, et al.. A set of Eurocode 8-compatible synthetic time-series as input to dynamic analysis. 15th World Conference on Earthquake Engineering : 15th WCEE, Sep 2012, Lisbon, Portugal. in press, 10 p. ⟨hal-00700245⟩