Deformation supports are elastomeric supports. Upon request, they may be equipped with containment structures.
The specific material characteristics of the elastomer allow rotation and translation to a certain degree by deformation. Due to this material feature, expensive stainless steel sliding panels in combination with PTFE are often unnecessary, which is a great advantage compared to other types of support. The design can be changed to a sliding deformation support (see page 36) if the permissible movement of the elastomeric support itself is not sufficient for the actual application.
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Another positive aspect is that it is an easy-to-maintain type of support. Without the sliding components, it does not even require maintenance. In contrast to other types of support, the component that takes up the vertical load is clearly visible for inspection. Elastomeric supports have been used successfully for decades and have proven their durability. However, if there is a need to replace a support, this is done by lifting the superstructure. Our mounts are designed to allow replacement of the elastomeric support or wear parts by lifting the 10 mm superstructure.
Each deformation support is manufactured individually on a case-by-case basis. In general, a range of different sizes and layered compositions are suitable for the proposed tasks. As a result, we can design the design of each very flexible support structure in accordance with specific requirements.
General information
The cured elastomeric supports are made of a special rubber compound and are equipped with an armed steel sheet during the manufacturing process, so-called vulcanization. Steel sheets provide the required rigidity. Enhanced elastomeric supports are distinguished by low maintenance and durability. In addition, some types can be used under certain conditions without additional steel (limiting) structure.
The elastomeric portion of the support is elastically deformable. Deformation in vertical direction (deflection) under permanent load is calculable and remains constant. The influences of the dynamic loads are generally small and the additional temporary deflections caused by the dynamic loads are small and will not cause problems for most structures.
There are different types of reinforced elastomeric supports. Various types are defined in EN 1337-3. The most common types are described below.
Type C (2) – reinforced support, both surfaces of the support are made of steel plates to protect against slipping. Replacing supports of this type is difficult to do without additional measures. As a floating support, this type may, depending on the rigidity, transfer horizontal loads (breaks, etc.). An example of replacement C-type support (2) is shown below.
Type C (5) – reinforced support, both surfaces of the support are protected against slipping of profiled steel plates. (eg grooves, slip resistant steel plates). However, due to the fact that the required tasks can not be precisely defined, it should be used only for structures with minor loads or for building construction. Because of the profiled surfaces it can not be equipped with limiting structures.
