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4.2.3.10.(1)
OS2OP2OP4
ObjectiveOS2 Structural Safety
Attribution
Application
Application 1: 
Protection of exposed steel components used in foundations or for the support of soil or rock. This applies to buildings described in Sentence 1.3.3.2.(1) of Division A and buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A] that are required to be designed to the requirements of Part 4.
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Intent
Intent 1: 
To limit the probability that steel components in foundation systems will be exposed to aggressive environmental conditions, which could lead to premature corrosion, which could lead to loss of bearing capacity, which could lead to excessive displacement of the foundation, which could lead to structural failure, which could lead to harm to persons.
Intent 2: 
To direct Code users to Article 1.2.1.1. of Division A for materials other than described in this Subsection.
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