Effect of support rotation on triple friction pendulum bearing behavior
Article first published online: 3 APR 2013
Copyright © 2013 John Wiley & Sons, Ltd.
Earthquake Engineering & Structural Dynamics
Volume 42, Issue 12, pages 1731–1748, 10 October 2013
How to Cite
Becker, T. C. and Mahin, S. A. (2013), Effect of support rotation on triple friction pendulum bearing behavior. Earthquake Engng. Struct. Dyn., 42: 1731–1748. doi: 10.1002/eqe.2295
- Issue published online: 6 SEP 2013
- Article first published online: 3 APR 2013
- Manuscript Accepted: 21 FEB 2013
- Manuscript Revised: 17 FEB 2013
- Manuscript Received: 11 JUN 2012
- National Science Foundation. Grant Number: CMMI-0724208
- friction pendulum;
- numerical model
This paper presents numerical modeling techniques to capture the behavior of the triple friction pendulum (TFP) isolation bearing when rotation is permitted about the horizontal axes of the top and bottom components. This paper builds on a previous model for the TFP bearing presented by the authors that is based on the kinematic and constitutive relationships of the individual components of the TFP bearing. The effect of rotation on cyclic bearing behavior and seismic system behavior are investigated numerically for two cases: constant support rotation and variable support rotation. It is found that constant support rotations should be limited in amplitude to ensure standard TFP bearing behavior. Results suggest that flexible supports may not have a large effect on global structure performance as long as typical deformation limits for the supporting members are met. In cases of both constant support rotations and flexible supports, the hardening stages of TFP bearing behavior are diminished. Copyright © 2013 John Wiley & Sons, Ltd.