Sentence 9.15.5.2.(1)

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

Objective

OS3 Safety in Use

Attribution

[F20-OS3.1]Applies to floors and elements that support floors.

Intent

Intent 1:

To limit the probability of:

  • an inadequate resistance to concentrated loads imposed by beams, which could lead to the compressive failure of masonry units, which could lead to the structural failure of the masonry [see corresponding requirement in Sentence¬†9.20.8.4.(2)], or
  • an excessively narrow contact area between beams and hollow masonry, which could lead to wood fibres being crushed, which could lead to the structural failure of beams.

This is to limit the probability of:

  • compromised structural integrity, or
  • where elements support or are part of an environmental separator, the displacement or failure of required environmental separation elements, which could lead to the deterioration of building elements.

For floors and elements supporting floors, this is to limit the probability of excessive deflection, which could lead to persons tripping or falling, which could lead to harm to persons.

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