Bearing Assemblies

Our Levelling Plates incorporate levelling screws to enable faster and more accurate installation. Steel support plates may be an essential requirement to ensure an even load distribution from the bearing into the reinforced concrete supporting structure, especially for small contact areas such as at the top or bottom of columns.

Where fail-safes are required in the design these can be provided with or without levelling screws and can also be combined with vertical ties and other features as necessary. Fail-safes allow the entire assembly to be delivered as one complete unit with lifting eyes for fast off-loading, distribution and installation.

Are generally used for robustness disproportionate collapse prevention (typically 75 kN for internal columns and 150 kN for external) and possibly some degree of in-service lateral load restraint depending on the design and effective length of the column. All buildings will be subject to a degree of lateral loading, typically from wind. The structural design will dictate how that horizontal loading is managed, either through stability cores, shear walls or bracing. There are numerous approaches to lateral restraint where the ideal solution is dependent on a number of factors inherent in the structural frame design. Either way, the building should be designed to avoid excessive lateral restraint as too much will reduce the effectiveness of the vibration isolation system.

Ensure the load from the structure is evenly spread over the entire area of the isolation bearings. To avoid the cost of fabricated shear keys, Farrat can design lateral bearings to be attached to contractor-constructed structural elements.