| Title | Lightweight High-Damping Natural Rubber Bearings |
| Authors | Coveney, V. |
| Publication | Proceedings of ASME-PVP Vol.147-Seismic, Shock, and Vibration Isolation, 1988 |
| Objectives | Evaluate the effect of the shim thickness, transverse and interlayer thickness variations have on the dynamic properties of low-load, lightweight, high-damping rubber bearings. |
| Abstract | The objective of this work was to design, construct, and test low-load, lightweight, high-damping laminated natural rubber earthquake isolation bearings. The isolators were moulded from an experimental soft elastomer formulation; some with very thin reinforcements (shims). They were tested individually and shaking table earthquake simulations were carried out with the bearings supporting a rehabilitated 1/5 scale medium rise reinforced concrete structure. Because of the nonlinearity in the bearings the degree of isolation achieved depended not only on the frequency content of the earthquake excitations but also on their strength. The performance of the bearings with thin shims was very similar in many respects to the performance of bearings of more conventional construction. |
