Sentence 9.10.7.1.(1)

Intent 1:

To limit the probability that structural steel members will fail prematurely when exposed to fire, which could lead to the failure or collapse of rated construction supported by the structural steel members [e.g. floor, roof and wall assemblies], which could lead to damage to the building.

Intent 2:

To limit the probability that structural steel members will fail prematurely when exposed to fire, which could lead to the failure or collapse of rated construction supported by the structural steel members [e.g. floor, roof and wall assemblies], which could lead to the spread of fire from a lower storey of a building to an upper storey, which could lead to damage to the building.