Lead Rubber Bearing (LRB), Brand Name : JING TONG

Lead core rubber bearing (LRB) , similar with high damping rubber bearing, is a kind of seismic isolation bearing. It is composed of multiple layers of elastomeric material and vulcanized reinforced steel plates with a central lead core. 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. What's more, the lead rubber bearing used for bridge or construction is different. For bridge, it also needs the capacity of absorbing small vibration and rotation performance at support position. Thus, when using, you needs to integrate a variety of practical situations to choose the most favorable bearings.
Product Features:
Lead core can dissipate the energy and decrease the displacement during the horizontal deformation.
Stiff and strong in vertical direction but flexible in horizontal direction.
Enable the bridge designed with multiple continuous spans and minimum the numbers of joints.
When subjected to large displacement, lead rubber bearings with large ductility will have no residual deformation and can restore by itself.
Easy to install and low cost maintenance.