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Journal articles
Behavior of rigid blocks with geometrical defects under seismic motion: an experimental and numerical study
Abstract : the present work investigates the influence of small geometrical defects on the behavior of slender rigid blocks. A comprehensive experimental campaign was carried out on one of the shake tables of CEA/Saclay in France. The tested model was a massive steel block with standard manufacturing quality. Release, free oscillations tests as well as shake table tests revealed a non‐negligible out‐of‐plane motion even in the case of apparently plane initial conditions or excitations. This motion exhibits a highly reproducible part for a short duration that was used to calibrate a numerical geometrically asymmetrical model. The stability of this model when subjected to 2000 artificial seismic horizontal bidirectional signals was compared with the stability of a symmetrical one. This study showed that the geometrical imperfections slightly increase the rocking and overturning probabilities for earthquake signals in a narrow range of peak ground acceleration.
https://hal-cea.archives-ouvertes.fr/cea-02382950
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Submitted on : Wednesday, November 27, 2019 - 2:35:02 PM
Last modification on : Monday, July 5, 2021 - 9:48:13 AM
Contributor : Amplexor Amplexor Connect in order to contact the contributor
Submitted on : Wednesday, November 27, 2019 - 2:35:02 PM
Last modification on : Monday, July 5, 2021 - 9:48:13 AM
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