Abstract
Structural bearings are designed according to EN 1337-1 to 11, where the requirements for the design and manufacture of bearings for bridges and buildings are specified. The use of some modern sliding materials in bearings is not covered by the standard EN 1337. The European technical approval (ETA) or national approvals must be used in such occasion. The backing plates in bearings must be designed so that they fulfill the ultimate and serviceability limit states. Usually the later influences their design. The paper deals with the different parameters that influence the deformation of backing plates. Parametric studies have been performed with the use of the FEM program ANSYS. The purpose is to derive a formula or recommendations that can be used also in the presence of new sliding materials with their higher stiffness and strength.
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