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An analytical model of a deformable cantilever structure rocking on a rigid surface: development and verification
Author(s) -
Vassiliou Michalis F.,
Truniger Rico,
Stojadinović Božidar
Publication year - 2015
Publication title -
earthquake engineering and structural dynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.218
H-Index - 127
eISSN - 1096-9845
pISSN - 0098-8847
DOI - 10.1002/eqe.2608
Subject(s) - cantilever , dissipation , excited state , structural engineering , stability (learning theory) , foundation (evidence) , surface (topology) , mechanics , spectral line , physics , materials science , engineering , geometry , computer science , mathematics , history , archaeology , astronomy , machine learning , nuclear physics , thermodynamics
Summary This paper extends previously developed models to account for the influence of the column and the foundation masses on the behavior of top‐heavy deformable elastic cantilever columns rocking on a rigid support surface. Several models for energy dissipation at impact are examined and compared. A novel Vertical Velocity Energy Loss model is introduced. Rocking uplift and overturning spectra for the deformable elastic cantilever model excited by sinusoidal ground motions are constructed. The effects of non‐dimensional model parameter variations on the rocking spectra and the overturning stability of the model are presented. It is shown that the remarkable overturning stability of dynamically excited large cantilever columns is not jeopardized by their deformability. Copyright © 2015 John Wiley & Sons, Ltd.