9.20.6.2.(1)

Objective

OH4 Vibration and Deflection Limitation

Attribution

[F20,F22-OH4]Applies to floors and elements that support floors.

Intent

Intent 1:

To limit the probability of:

  • inadequate width of masonry units in loadbearing contact with each other, which could lead to an inability to resist expected gravity or lateral loads,
  • insufficient bond strength to resist tensile stresses in non-loadbearing masonry cavity walls, or
  • inadequate bonding of ties with mortar, which could lead to inadequate pullout and pushout resistance.

This is to limit the probability of:

  • compromised structural integrity of masonry construction,
  • where masonry construction is part of an environmental separator, the displacement or failure of required environmental separation elements, which could lead to deterioration, or
  • in assemblies exposed to moisture or the exterior, damage and deterioration.

For floors and elements supporting floors, this is to limit the probability of excessive movement, deflection or vibration, which could lead to negative effects on the psychological well-being of persons.

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