NEHRP Clearinghouse

Title
Design Procedure for R-FBI Bearings.
File
PB90262718.pdf
Author(s)
Mostaghel, N.; Kelly, J. M.
Source
National Science Foundation, Washington, DC., November 1987, 60 p.
Identifying Number(s)
UCB/EERC-87/18
Abstract
The basic parameters affecting the design of the Resilient-Friction Base Isolator (R-FBI) bearings and their inter-relationship together with a procedure incorporating the SEAONC tentative provisions for the bearing design are presented. The procedure, while providing the isolator with the design displacement capability and the control of the maximum base shear that is transferred through the bearings, also ensures against instability and yields all the dimensions necessary for the fabrication of the R-FBI bearings. As an example it is used to design bearings for a five-story 1/3-scale frame model to be tested on the shaking table at the University of California at Berkeley.
Keywords
Bearings; Vibration isolators; Earthquake resistant structures; Friction; Structural vibration; Structural design; Vibration damping; Shear properties; Structural engineering; Stiffness; Displacement; Resilient-Friction Base Isolator; Seismic waves