CDM-CHR are Simple Spring Bearings for structural isolation of buildings and structures.


System features:

  • 3Hz to 5Hz natural frequency
  • Cost effective
  • 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 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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