Sliding isolation system for bridges: analytical study

This paper reports on a parametric study of the response of bridges supported by an isolation system consisting of sliding Teflon bearings and displacement control devices. Results are presented in a form that is useful in the design of sliding isolation systems for two-span continuous deck bridges. Comparisons with the response of conventionally built bridges demonstrate the significant benefits of seismic isolation. Finally, simplified code-type analysis procedures are presented and evaluated. -from Authors