CDM-CHR-BOX are Pre-compressed Spring Bearings for structural isolation of buildings and structures.


System features:

  • Can be designed to meet natural frequencies anywhere between 3Hz and 5Hz
  • Easily replaceable
  • Limits deflection of the building during construction
  • Easy to install
  • Lifespan greater than 50 years
  • High lateral stiffness
  • Easily adapted to meet different loads and performance requirements

To design the CDM-CHR-BOX structural isolation bearings CDM’s engineers require the following information:

  • Natural frequency requirement
  • Working Dead and Live loads on each contact point
  • Lateral and turning forces at each support point
  • Contact areas and dimensions as well as locations of any fixing down bolts
  • Fire protection requirements
  • Maximum likely dynamic forces caused by earthquakes etc..

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