An analytical model of a deformable cantilever structure rocking on a rigid surface: development and verification |
| |
| Authors: | Michalis F Vassiliou Rico Truniger Bo?idar Stojadinovi? |
| |
| Affiliation: | Institute of Structural Engineering (IBK), Swiss Federal Institute of Technology (ETHZ), Zürich, Switzerland |
| |
| Abstract: | 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. |
| |
| Keywords: | seismic isolation rocking earthquake engineering uplifting structures wind turbines overturning |
|
