9.20.5.2.(2)

Objective

OS2 Structural Safety

Attribution

[F20,F22-OS2.3]Applies to elements that support or are part of an environmental separator.

Intent

Intent 1:

To limit the probability of:

  • lintels that are inadequate in size or have an excessive span, which could lead to the excessive deflection or failure of lintels, which could lead to the cracking or structural failure of masonry veneer over openings, or
  • an inadequate bearing area between lintels and supported masonry veneer, which could lead to shear or compression failure of masonry veneer.

This is to limit the probability of:

  • masonry falling from the building, or
  • where masonry construction is part of an environmental separator, the displacement or failure of required environmental separation elements, which could lead to deterioration, which could lead to compromised structural integrity, which could lead to structural collapse.

This is to limit the probability of harm to persons.

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