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3.2.2.15.(2) | Application | Intent |
| OS1 | OP1 | OS1 | OP1 |
| Objective | OP1 Fire Protection of the Building |
| Attribution | |
| Application | Application 1: Fire-resistance rating and fire separation requirements for a portion of a building that is erected entirely below the adjoining
finished ground level and that extends more than one storey below
that ground level. This applies to buildings to
which Part 3 applies [see Sentence 1.3.3.2.(1) of Division A for application
of Part 3].
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| Intent | Intent 1: To limit the probability that loadbearing walls, columns
and arches exposed to fire will prematurely fail or collapse, which could
lead to the failure or collapse of supported floor or roof assemblies during
the time required to achieve occupant safety and for emergency responders
to perform their duties, which could lead to damage to the building.
Intent 2: To limit the probability that floor assemblies exposed to
fire will prematurely fail or collapse during the time required to achieve
occupant safety and for emergency responders to perform their duties, which
could lead to damage to the building. Intent 3: To limit the probability that loadbearing walls, columns
and arches exposed to fire will prematurely fail or collapse, which could
lead to the failure or collapse of supported floor assemblies, 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 damage
to the building. Intent 4: To limit the probability that floor assemblies exposed to
fire will prematurely fail or collapse, which could lead to the spread of
fire from a lower storey of a building to an upper storey or to the exterior
of the building during the time required to achieve occupant safety and for
emergency responders to perform their duties, which could lead to damage to
the building. |
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