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Étude de la réponse structurelle d’un bâtiment de grande hauteur à partir d’enregistrements accéléromètriques et de la modélisation par éléments finis

Abstract : The Nice prefecture is equipped by 24 accelerometric sensors, located at different levels, which continuously record the building response. A finite element model of the building is created based in design plans and information about materials provided during the conception project. Such model is used to obtain the natural frequencies of the structure, the modal shapes and the seismic response acceleration time histories. Modal frequencies of the building obtained from the data analysis are used to calibrate the numerical model. The response of the building to earthquakes, in the form of acceleration time histories at different storeys, is evaluated using the finite element model. Signals recorded during the recent Barcelonnette earthquake (April 2014, Mw = 4.9) are used as excitation at the base of the building. The imposition of a single or multiple signals at the base of the structure shows the importance of taking into account the rocking effects in the building response modelling. The numerical results are in agreement, in amplitude and phase, with accelerometric records filtered at different frequency bands.
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https://hal.archives-ouvertes.fr/hal-01247459
Contributor : Guillermo Wenceslao Fernandez Lorenzo <>
Submitted on : Tuesday, December 22, 2015 - 9:03:55 AM
Last modification on : Sunday, October 25, 2020 - 7:06:55 AM
Long-term archiving on: : Saturday, April 29, 2017 - 11:45:18 PM

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  • HAL Id : hal-01247459, version 1

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Guillermo Wenceslao Fernández Lorenzo, Maria Paola Santisi d'Avila, Anne Deschamps, Etienne Bertrand, Diego Mercerat. Étude de la réponse structurelle d’un bâtiment de grande hauteur à partir d’enregistrements accéléromètriques et de la modélisation par éléments finis. AFPS2015 - 9ème Colloque National de L'Association Française du Génie Parasismique, Nov 2015, Paris, France. ⟨hal-01247459⟩

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