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9.23.8.2.(1)
ApplicationIntent
OS2OP2OH1OS1OS3OH4
ObjectiveOH4 Vibration and Deflection Limitation
Attribution
[F80-OH4] Applies to floors and elements that support floors.
Application
Application 1: 
Surface protection for exterior steel beams that are:
  • used to support floors, and
  • exposed to the weather.
This applies in wood-frame constructions to which Section 9.23. applies [see Sentence 9.23.1.1.(1) for application of Section 9.23.].
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Intent
Intent 1: 
To limit the probability of inadequate moisture protection, which could lead to an unacceptably high rate of surface corrosion, which could lead to a loss of strength, which could lead to an inability to resist expected gravity loads.
For floors and constructions supporting floors, this is to limit the probability of:
  • compromised structural integrity, or
  • for exterior floors or environmental separators supporting a floor, 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 excessive movement, vibration or deflection of floors, which could lead to negative effects on the psychological well-being of persons.
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