1. OH1
  2. OS2
  3. OP2
  4. OS1
  5. OH4
  6. OS3


OH4 Vibration and Deflection Limitation


[F20,F80-OH4]Applies to floors and elements that support floors.


Intent 1:

To limit the probability of:

  • inadequate corrosion resistance, which could lead to the corrosion of metal ties,
  • an inadequate cross-sectional area, or
  • an inadequate shear area through the mortar.

This is to limit the probability of:

  • buckling failure of metal ties under lateral loads,
  • tensile failure of metal ties under gravity loads, and
  • failure of the bond between mortar and metal ties under lateral loads.

This is to limit the probability of inadequate load distribution among the wythes of multiple-wythe masonry walls, which could lead to an inability to resist transverse or vertical loads, which could lead to cracking or buckling.

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.

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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