Sentence 9.23.9.9.(3)

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

Objective

OS1 Fire Safety

Attribution

[F20,F22-OS1.2]Applies to assemblies required to provide fire resistance.

Intent

Intent 1:

To limit the probability of:

  • inadequate leverage provided by the inboard portion of cantilevered joists,
  • inadequate resistance, by headers and fasteners, to upward reactions, or
  • inadequate fastening of the inboard portion of cantilevered joists.

This is to limit the probability of:

  • the excessive movement, deformation or failure of floor assemblies, or
  • the excessive deflection of the roof.

Where assemblies are required to provide fire resistance, this is to limit the probability of compromised fire resistance of the assembly, which could lead to harm to persons.

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