Seismic Isolator Lead Rubber Bearing for Bridges & Buildings - 1326 kN Capacity, 69mm Thickness
Seismic Isolator Lead Rubber Bearings are engineered structural components designed for bridges and buildings. These bearings consist of multilayer rubber sheets and thin steel plates, providing reliable vertical load transfer while accommodating rotational and horizontal movements.
- Excellent technical performance with simple structural design
- Cost-effective solution with low maintenance requirements
- Easy replacement for buffer isolation applications
- Minimal building height requirements
- Reliable vertical force transfer to supporting structures
- Superior elasticity for beam end rotation accommodation
- Large shear deformation capacity for horizontal displacement
| Item | Plane Size (mm) | Max Bearing Pressure (kN) | Total Thickness (mm) | Max Displacement (mm) | Allowable Corner Tangent Value |
|---|---|---|---|---|---|
| 1 | 350×400 | 1326 | 69 | 22-30.8 | 0.0081-0.0058 |
| 2 | 350×450 | 1496 | 69 | 22-30.8 | 0.0074-0.0053 |
| 3 | 400×400 | 1251 | 69 | 22-30.8 | 0.0063-0.005 |
| 4 | 400×450 | 1716 | 69 | 22-30.8 | 0.0057-0.005 |
| 5 | 450×450 | 1936 | 69 | 22-30.8 | 0.005 |
Bridge Applications: Suitable for spans up to 30 meters with small displacement requirements. Available in round board and rectangular plate types for orthobridges, curved bridges, diagonal piers, and cylindrical piers.
Constructed using high-quality synthetic neoprene rubber (Nath rubber) and vulcanized natural rubber. Alternative materials include butyl rubber and specialized rubber mixes to meet specific performance requirements.
- Regular inspection of support components for completeness and cleanliness
- Timely removal of debris, snow, and ice around bearings
- Cleaning of sewage, grease, and water accumulation
- Proper silicone grease application for PTFE slide surfaces
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