Shimmed Elastomeric Bearings

Laminated Steel Elastomer Bearing Pads are now in service in tens of thousands of bridges and similar structures throughout the world.

Laminated elastomeric bearing pad, one type of reinforced elastomeric bearings, is made of multi-layer rubber and reinforced with steel plate through sulfuration and adhesion. Compared with non-reinforced elastomeric bearing, it has sufficient vertical rigidity which can reliably transfer the concentrated down-loads and impact loads of the superstructure to both ends of the pier. What's more, laminated elastomeric bearing pad not only has fine elasticity which can adapt the rotation of beam end but also has great shearing deformation capacity which can satisfy the horizontal displacement of the superstructure. Thus, it is often applied for steel bridge, PC bridge, RC bridge including right, curved, or skew angled bridge.

Shimmed Elastomeric Bearings Features:

  1. Superior flexibility. Adapt to the rotation of the beam end.

  2. Large shear deformation. Can satisfy the horizontal displacement of the superstructure.

  3. Sufficient vertical rigidity. Capable to withstand vertical loads and external forces.

  4. Excellent isolation effect. Can reduce the impact force from the live load and earthquake.

  5. Wide range of application. In addition to used in bridges, it also can be used for hydraulic engineering and earthquake resistant facility.

Shimmed Elastomeric Bearings - Standard Material Properties:

Bearing Material Type:

Natural Rubber

Natural Rubber

Natural Rubber

Neoprene

Neoprene

Neoprene

Durometer:

50

60

70

50

60

70

Hardness (Shore A):

45 - 55

55-65

65-75

45-55

55-65

65-75

Tensile Strength (Min. PSI.)

2500

2500

2500

2250

2250

2250

Elongation at break (Min.):

450%

400%

350%

400%

350%

300%

 

Compression Set (Max):

25%

25%

25%

35%

5%

5%

Benchmark accepts no responsibility for individual results obtained. Everyone is strongly recommended to verify data and obtain their own independent test results. This data is subject to change without notice.

Load distribution and movement accommodation of laminated elastomeric bearing pads: