Rectangular rubber bearings of Bridges

Rectangular laminated bearing pad, one of most popular type in laminated bearing pad, is made of chloroprene rubber (CR) or natural rubber (NR). The chloroprene rubber laminated bearing pad is suitable for environments where the temperature ranges from -25 °C to 

60 °C. If the working temperature ranges from -40 °C to 60 °C, you can choose the natural rubber for raw material.
Structure of rectangular laminated bearing pad
Rectangular laminated bearing pad is made of rubber layer and inserted reinforced steel plates. The steel plates and rubber layers are glued and then vulcanized together to form a strong and high bearing load laminated bearing pad. Besides, we can also supply the rectangular elastomeric bearing pad, which has no reinforced steel plate. Compared with rectangular elastomeric bearing pad, the rectangular laminated bearing pad can supply higher loading capacity and extend the bridge lifespan.

Applications

Laminated bearing pad is suitable for the bridge which span is no larger than 30 m and needs little displacement.
The rectangular laminated bearing pad is suitable for right bridge.

Round laminated bearing pad is suitable for curved bridge, column pier bridge or skew bridge.

PTFE laminated bearing pad is suitable for large span, multi-span continuous beam and simply supported beam and other large displacement bridges.

Features of rubber bridge bearing:

(1) Quality materials including natural rubber, neoprene complying with AASHTO standards.

(2) Allow for expansions and contractions of precast steel structure of bridges.

(3) Capable to control load distribution, meanwhile accommodate thermal and end-beam rotational movements.

(4) Vibration, sounds and shocks isolation.

(5) Avoid excessive load eccentricity and edge compression.

(6) Simple but robust structure.

(7) Lower price than laminated elastomeric bearing.

(8) High cost effectiveness.

(9) Minimal maintenance is needed.