Sentence 9.17.3.4.(1)

Intent 1:

To limit the probability that the performance of adjustable steel columns will fall significantly below expectations.

This is to limit the probability of:

• compromised structural integrity, or
• for environmental separators or elements supporting 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 or vibration of floors, which could lead to negative effects on the psychological well-being of persons.