The Use of the Friction Pendulum Bearings for Isolation of the Built Environment
Journal Title: Romanian Journal of Acoustics and Vibration - Year 2009, Vol 6, Issue 2
Abstract
Base isolation systems have become a significant element of a structural system to enhance reliability during an earthquake. One type of base isolation system is Friction Pendulum Bearings in which the superstructure is isolated from the foundation using specially designed concave surfaces and bearings to allow sway under its own natural period during the seismic events. This study presents the concept of Friction Pendulum, The responses of a single degree of freedom system with and without base isolation are compared for free and forced vibrations. The results showed that the maximum acceleration experienced by the structure was double without base isolation comparing to the case using this system.
Authors and Affiliations
Camelia Jurcău, Gilbert Gillich
Keywords
Related Articles
- EP ID EP134453
- DOI -
- Views 97
- Downloads 1
On the Vibrations of a Mass Linked by Two Nonlinear Springs with Quadratic and Third Order Polynomial Characteristics
We study the equilibrium positions and their stability in the case of a mass linked by two nonlinear springs. These springs have polynomial characteristic of different orders; one of them is a quadratic one and the secon...
Aspects Concerning the Dynamic Behavior of a Rotor-Foundation System
The paper analyses the coupled vibrations of a rotor-foundation system, when the domain of the critical angular velocity is perturbed, which can lead to the damage of the shaft, by vibration of the gear, as well as of th...
Noise reduction of a water cooler equipment (chiller)
The chilling equipments of air conditioning installations – located on the flat roof – represent the sources of noise which can cause acoustical discomfort to the habitants from the neighborhood buildings. The dissertat...
Evaluation of the Dissipated Energy in Viscoelastic or Hysteretic Seismic Isolators
This paper represents the result of experimental and theoretical researches concerning the behaviour and the performance level specific to neoprene bearings subjected to conformity assessment. The tandardized test involv...
On the Seismic Cloaking
Geometric transformations are strongly sustained by manufacture of auxetic materials based on the pore size reduction through radial compression molds. In addition, geometric transformations underlie the development of s...