9.20.17.4.(3)

Intent 1:

To limit the probability of lintels that are inadequate in size or amount of reinforcement, or have an excessive span, which could lead to the excessive deflection or failure of lintels.

This is to limit the probability of:

• compromised structural integrity, or
• where elements support or are part of 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 movement, deflection or vibration, which could lead to negative effects on the psychological well-being of persons.