Elastomeric Bridge Bearing

Product Description

EIPL Elastomeric Bridge Bearing are designed and manufactured as per IRC 83 part II - 2015,with its latest amendment to meet the requirements of MORT and H specification for road and bridge work to section no: 2000 to clause no 2005 ( Elastomeric bearing ) and to international specification Union of Railways Code No UIC 772 - 2R (Use of Rubber bearings for Railway Bridges) and BS EN 1337 - 3/2005 (Structural bearing - part 3: Elastomeric bearing).
EIPL Elastomeric bridge bearing consists of one or more internal layers of elastomer bonded to internal steel laminates shall be cast in single unit mould and vulcanized under heat and pressure to cater for translation or rotation of the superstructure by elastic deformation.
The raw elastomer used in bearings is polychloroprene of make : Neoprene W & WRT, Bayprene 110 & 210, Skyprene B5 & B30, Denka S 40 & M 40 of low crystallization rate and adequate shelf life.
The content of the poly chloroprene of the bearings shall not be lower than 60% and the ash content shall be less than 5%. The steel laminates used in bearings shall meet the specification of IS: 2062/ IS: 1079

Technical Data of Bearings:-

• 10 KN is equivalent to 1MT Shear Modulus of the bearing shall be 0.9+/-0.18 MPa Design load of the
• bearing is equivalent to 10 Mpa Shear Bond test (horizontal movement up to 2x total elastomer thickness)
• Dimension can also be designed as per requirement.

Design of the Elastomeric Bearing:-

• The overall length divided by overall width shall be less than or equivalent to two.
• If thickness of steel laminates is 3 mm, then thickness of elastomer layer shall be either 8 or 10 mm.
• If thickness of steel laminate is 4 mm, then thickness of elastomer layer shall be 12 mm.
• Minimum thickness of top and bottom cover layer shall be 2.5 cm &minimum thickness of side cover shall be 4
  

Specification