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9.10.8.3.(1) | Application | Intent |
OS1 | OP1 |
Objective | OS1 Fire Safety |
Attribution | |
Application | Application 1: Minimum fire-resistance rating of loadbearing walls, columns and arches in the storey immediately
below [and supporting] a floor or roof assembly, in buildings to
which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application
of Part 9].
Exceptions:
except as stated in:
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Intent | Intent 1: To limit the probability that loadbearing walls, columns
and arches exposed to fire will fail or collapse prematurely, which could
lead to the failure or collapse of the floor or roof assembly above during
the time required to achieve occupant safety and for emergency responders
to perform their duties, which could lead to harm to persons. Intent 2: To limit the probability that loadbearing walls, columns
and arches exposed to fire will fail or collapse prematurely, which could
lead to the failure or collapse of the floor assembly above, which could lead
to the spread of fire from a lower storey of a building to an upper storey
or to the exterior during the time required to achieve occupant safety and
for emergency responders to perform their duties, which could lead to harm
to persons. |
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