They consist of 2 to 12 laminated elastomer layers vulcanized on steel plates. Natural or chloroprene rubber.
The bearings are individually moulded and the reinforcing plates are embedded in the elastomer with a side coverage of at least 4 mm and outer layers of 2.5 mm thickness (type B) or thick outer bands (type C).
Their cross-section is rectangular, square or circular depending on site requirements.
These bearings offer various configurations to cover different connection needs:
For bridges requiring large movements, laminated elastomer bearings can be equipped with:
Their resistance to movement is hence limited to the friction between the lubricated PTFE plate and the polished austenitic steel sheet.
The addition of steel guides welded to the anchor plate allows the transfer of higher lateral and/or longitudinal loads in either direction.
They consist of a single piece of elastomer, natural or chloroprene rubber.
They can be supplied as rectangles, squares or strips, depending on site requirements and are generally used for buildings.
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