Experimental investigation of the inelastic behavior of structures isolated using friction pendulum bearings
OPEN ACCESS
Loading...
Author / Producer
Date
2017
Publication Type
Conference Paper
ETH Bibliography
yes
Citations
Altmetric
OPEN ACCESS
Data
Rights / License
Abstract
Current US and European seismic design codes limit the magnitude of strength reduction allowed for seismically isolated structures, thus effectively leading to the elastic design of these structures. This study is focused on the experimental investigation of the behavior of seismically isolated structures when they behave inelastically. The experimental investigation performed in this study is based on the response of a reduced-scale seismically isolated steel structure to strong analytical pulses and recorded ground motion accelerations applied using the shaking table of the ETH Zurich IBK Structural Testing Laboratory. The part of the structure designed to develop inelastic behavior is a pair of steel coupons that can be easily replaced after such damage. The structure is seismically isolated using four friction pendulum bearings designed to accommodate the large displacements induced by strong ground motion excitations. The bearings are made by MAGEBA SA. A relation between the experimentally obtained strength and displacement ductility of inelastic seismically isolated structures is presented in this paper. The influence of design parameters, such as the fundamental vibration period of the isolated superstructure, and the types of ground motion is quantified and presented. The experimentally obtained data is compared to an analytically derived strength-ductility-period relation for seismically isolated structures. This comparison will serve to validate the proposed analytical relation and to further the understanding of the behavior of inelastic seismically isolated structures.
Permanent link
Publication status
published
External links
Editor
Book title
Proceedings of the 16th World Conference on Earthquake Engineering (WCEE 2017)
Journal / series
Volume
Pages / Article No.
741
Publisher
National Information Centre of Earthquake Engineering, Indian Institute of Technology Kanpur
Event
16th World Conference on Earthquake Engineering (WCEE 2017)
Edition / version
Methods
Software
Geographic location
Date collected
Date created
Subject
Experimental investigation of base-isolated structures; Inelastic behavior of base-isolated structures
Organisational unit
03930 - Stojadinovic, Bozidar / Stojadinovic, Bozidar
Notes
Also published in: Resilience - The New Challenge in Earthquake Engineering, 2019, ISBN: 978-1-5108-9008-4, Volume 6, p. 3944-3955, Curran/Red Hook, NY.