Laminated Rubber Bearing
Laminated rubber bearings are seismic isolation and load-bearing components used in engineering structures such as bridges and buildings. As one of the basic types of bridge bearings, they primarily accommodate structural displacement and deformation through the elastic deformation of rubber materials while transferring loads.
Plain Laminated Rubber Bearing:
This is the basic type, suitable for small-to-medium span bridges and low-rise buildings, and mainly bears vertical loads and horizontal displacements.
PTFE Sliding Laminated Rubber Bearing:
A layer of polytetrafluoroethylene (PTFE) sliding plate is bonded to the top surface of the bearing, which contacts the stainless steel plate of the bridge girder. This reduces frictional resistance and allows the girder to undergo horizontal sliding displacement (such as bridge expansion and contraction), making it widely used in long-span continuous girder bridges.
Executive Standard:
ISO 23618 : 2022
EN 1337
