Bridge Bearings& Accessories

A Device provided in between the Substructure and the Superstructure to control the interaction of these two is called Bearing. The function of a bearing is to safely transmit the Loads and Forces acting on to or from the Superstructure to the substructure underneath while providing for free translation and rotation of the structure supported by the bearing.

TYPE OF BEARINGS:
  • POT/PTFE Bearings
  • Rocker & Rocker-cum-Roller Bearing
  • Elastomeric Bearing
(1)POT-PTFE Bearing
(A.)Fixed Pot Bearing

A type of structural bearing which along with vertical load, bears and transmits horizontal forces in any direction and allows rotation about any axis in horizontal plane without permitting any movement, is called as Fixed Pot Bearing.

(B.)Free Pot Bearing

A type of POT Bearing which bears & transmits vertical load & allows movement in any direction in the horizontal plane and accommodates rotation about any axis in horizontal plane.

(C.)Guided Pot Bearing

A type of POT Bearing which along with vertical loads bears & transmits horizontal force in one direction only & allows movement perpendicular to that direction and allows rotation about any axis in horizontal plane.

(2.)ROCKER-ROLLER Bearing

These types of bearings consist of rollers sandwiched between a saddle plate and a bottom plate. Rocker cum roller bearings offer longitudinal movement through rollers which roll along guide bars attached to saddle plate and bottom plate. Rotational movement is through a rocker pin which gives a see-saw rocking motion to the top plate. The rollers are connected by a spacer plate for unidirectional movement.

(3.)ELASTOMERIC (NEOPRENE) Bearing

A bearing consisting of a one or more internal layers of elastomer bonded to internal steel laminates by the process of vulcanization. The bearing caters of translation and / or rotation of the superstructure by elastic deformation.

(4.)BRIDGE DRAINAGE SPOUT

A drainage spout is a vertical pipe for carrying rainwater down from a platform. It is made from mild steel and galvanized to prevent corrosion or rusting due to water flowing through the pipe. Drainage spouts are manufactured and supplied according to MORTH specification or as per client’s requirements