1. 212 Ketter Hall, North Campus, Buffalo, NY 14260 www.civil.buffalo.edu Fax: 716 645 3733 Tel: 716 645 2114 x 2400 Structural Control through Base Isolation Andrei M Reinhorn Professor of Structural Engineering

2. Modern Methods in Earthquake and Vibration Mitigation

3. Elastomeric / Natural Rubber Isolators

4. Spectral Response Target Period 2-3sec

5. Spectral Response

6. Site Effects on Spectral Response

8. Steel-Laminated Elastomeric Bearings Curtesy Scougal Rubber, Seattle, WA

9. Deformed Seismic High Damping Rubber Bearing

10. Lead Rubber Bearing

11. Whitestone Bridge - Rubber Bearings

12. Friction Pendulum System

15. Liquid Natural Gas (LNG)Tanks Friction Pendulum System 212 Isolators -20 o C - 30 o C 1000 tons capacity 5% friction +/-30 cm lateral movement period of 2.75 sec

16. Hayward City Hall, CA 53 FPS 15 Taylor Fluid Dampers Period 3.0 sec 3.5% Friction +/-28 cm movement 900 tons capacity

17. 22 FPS 5 sec period +/- 1.30 m movement 2200 tons capacity R=6.2m

18. San Francisco Airport International Terminal 267 FPS 3 sec period +/- 60 cm movement 3000 tons capacity