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Bridge Bearing

These pads are placed in between superstructures such as the bridge beam and substructures such as the vertical supports called piers. Their primary function is to distribute superstructure loads to the substructure and allow the superstructure to undergo necessary movements in irregular environmental conditions without creating any harmful stresses that might compromise the structural integrity of the bridge. When the structural integrity of the bridge is compromised, the bridge could collapse.

Preventing collapse is not the only function of an elastomeric bearing pad. The pads extend the life of bridges by reducing wear and tear on bridge materials.

Structural bearings, indeed, are the devices allowing the correct transfer of the loads considering all the related movements.

Elastomeric bearings support simultaneous loads and deformation in any direction. Steel plates are bonded to the rubber through a vulcanization process and have the main scope to increase the resistance of the bearings to vertical loads. The steel plates are fully embedded in the elastomer so that they are protected against corrosion.

The connection of the elastomeric bearings to the structure may be through the rubber itself or steel elements of various shapes suitable for any kind of structure.