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9.23.2.2.(1)
ApplicationIntent
OS2OP2OH1OS1OH4OS3
ObjectiveOH4 Vibration and Deflection Limitation
Attribution
[F80-OH4] Applies to floors and elements that support floors.
Application
Application 1: 
Decay prevention for ends of wood joists, beams, columns and other members framed into masonry or concrete at or below the surface of the ground, 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 resistance or inadequate provision for drying, which could lead to extended exposure to surface water or to water from the ground transferred through masonry or concrete, which could lead to wood decay, which could lead to an inability to resist expected gravity or lateral loads, which could lead to excessive movement, deflection or deformation.
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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