Experimental study of seismic isolation systems with emphasis on secondary system response and verification of accuracy of dynamic response history analysis methods

This report consists of 2 parts: an experimental study of seismic isolation systems with emphasis on secondary system response, and verification of the accuracy of the dynamic response-history analysis programs. Test were performed on a single bearing test machine to determine isolation system properties for analytical modeling. Earthquake simulator tests were performed on a 1:4 scale, 6-story, building model. Various isolation systems were studied, including low damping elastomeric bearings, friction pendulum bearings, low damping elastomeric bearings with flat sliding bearings.