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4.1.1.5.(2)
OS2OP2OH4
ObjectiveOP2 Structural Sufficiency of the Building
Attribution
Application
Application 1: 
Design of buildings and their structural components to which Part 4 applies that are not amenable to analysis using a generally established theory.
This applies to buildings described in Sentence 1.3.3.2.(1) of Division A and to buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9] that are required to be designed in accordance with the requirements of Part 4.
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Intent
Intent 1: 
To limit the probability that the building and its structural elements will not be designed in accordance with an acceptable method that will provide equivalent levels of safety and performance as the requirements in Part 4 do, which could lead to:
  • the excessive deformation of, or excessive stress in, structural components, which could lead to damage to the building, and
  • the excessive deflection or excessive vibration of structural components, which could impede the intended use and occupancy of the building.
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