NEHRP Clearinghouse

Title
Experimental Study of Seismic Isolation Systems with Emphasis on Secondary System Response and Verification of Accuracy of Dynamic Response History Analysis Methods.
File
PB2005102195.pdf
Author(s)
Wolff, E. D.; Constantinou, M. C.
Source
National Science Foundation, Arlington, VA., January 16, 2004, 956 p.
Identifying Number(s)
MCEER-04-0001
Abstract
This report consists of two main parts: an experimental study of seismic isolation systems with emphasis on secondary system response, and verification of the accuracy of dynamic response-history analysis programs. Tests were performed on a single bearing test machine to determine isolation system properties for analytical modeling. Earthquake simulator tests were performed on a quarter-scale, six story, building model. A total of eight different isolation systems were studied, namely, low damping elastomeric bearings with and without linear and nonlinear viscous dampers, Friction Pendulum (FP) bearings with and without linear and nonlinear viscous dampers, low damping elastomeric bearings with lead cores, and low damping elastomeric bearings in conjunction with flat sliding bearings. Each configuration was modeled in two dynamic analysis computer programs: SAP2000 and 3D-BASIS-ME.
Keywords
Dynamic response; Bearings; Earthquake resistant structures; Systems analysis; Components; Dampers; 3D-BASIS-ME computer program; Computerized simulation; Secondary system response; Dynamic response history analysis; SAP2000 computer program; Scale models; Seismic isolation