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9.23.4.4.(3) | Application | Intent |
| OS2 | OP2 | OH1 | OS1 | OH4 | OS3 |
| Objective | OS1 Fire Safety |
| Attribution | |
| Application | Application 1: Reduction in maximum spans for lumber beams or in
maximum supported length of floor joists used to support floors with a concrete
topping not more than 51 mm thick, in residential applications
or where the live load on any floor does not exceed 1.9
kPa, in wood-frame constructions to which Section 9.23. applies
[see Sentence 9.23.1.1.(1) for application of Section 9.23.].
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| Intent | Intent 1: To limit the probability of excessively long spans of beams
or joists, which could lead to beams being unable to resist the additional
weight of a concrete topping, which could lead to excessive deflection or
failure. Where assemblies are required to provide fire
resistance, this is to limit the probability of compromised fire resistance
of the assembly, which could lead to harm to persons.
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