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


OS2 Structural Safety


[F20,F80-OS2.3]Applies to elements that support or are part of an environmental separator.


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, which could lead to:

  • structural failure of masonry construction, or
  • where masonry construction is part of an environmental separator, the excessive deformation, displacement or failure of required environmental separation elements, which could lead to deterioration, which could lead to further compromised structural integrity.

This is to limit the probability of harm to persons.

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