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  • Design Features
  • Selection and Specification
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Selection and Specification

Published International Standards, as well as offshore and infrastructure authorities and design engineers have varying approaches to bearing specifications but the following are provided as general guidelines:

1. The vertical compression deformation should not exceed 15% of the initial bearing thickness
2. The horizontal displacement under shear should be lower than 70% of the total thickness of the elastomer
3. Total shear tension due to vertical, horizontal and rotation muxst be lower than five times the shear modulus
4. The maximum compressive load should not be higher than 100-150 kg/cm² 
5. The minimum vertical load to avoid sliding in the structure should not be less than 30kg/cm². If this condition cannot be satisfied, an anchored bearing should be used
6. For stability, the total effective height of the elastomer should be lower than a fifth of the smaller horizontal dimension, or if circular, a fifth of the diameter and it should be greater or equal to a tenth of the smaller horizontal dimension.