LRB lead isolation rubber bearing
Lead bridge rubber bearing , applied to building and bridge constructions, is a practical and cost-effective choice for seismic isolation. It is composed of laminated elastomeric bearing pad, top and bottom sealing & connecting plates and lead plug inserted in the middle of the bearing as shown in the following picture.
- High purity lead. The lead core in the lead rubber bearing that we adopt is high purity and does not contain any impurities.
- Excellent seismic function. Lead core in the bridge bearing has high level damping of up to 30% by deforming plastically when the bearing moves laterally in an earthquake.
- Corrosion resistance. The steel plate are fully embedded in the rubber and sealed.
- Aging resistance. Rubber layer is coated on the surface of the bearing surface to protect the inner rubber.
- Strong recovery ability. When subjected to large displacement, lead rubber bearings with large ductility will have no residual deformation and can restore by itself.
- Practical function. Lead rubber bearing not only controls the displacement volume but also prevents the bridge from falling down.
- Easy maintenance. Available with additional anchor plates, the bearing can be easily removing for maintenance purpose.
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