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P2.1.1 Structural stability and resistance to actions


A building or structure, during construction and use, with appropriate degrees of reliability, must—


perform adequately under all reasonably expected design actions; and


withstand extreme or frequently repeated design actions; and


be designed to sustain local damage, with the structural system as a whole remaining stable and not being damaged to an extent disproportionate to the original local damage; and


avoid causing damage to Open link in same pageother properties,

by resisting the actions to which it may reasonably be expected to be subjected.


The actions to be considered to satisfy Open link in same page(a) include but are not limited to—


permanent actions (dead loads); and


imposed actions (live loads arising from occupancy and use); and


wind action; and


earthquake action; and


snow action; and


liquid pressure action; and


ground water action; and


rainwater action (including ponding action); and


earth pressure action; and


differential movement; and


time dependent effects (including creep and shrinkage); and


thermal effects; and


ground movement caused by—


swelling, shrinkage or freezing of the subsoil; and


landslip or subsidence; and


siteworks associated with the building or structure; and


termite actions.


The structural resistance of materials and forms of construction must be determined using five percentile characteristic material properties with appropriate allowance for—


known construction activities; and


type of material; and


characteristics of the site; and


the degree of accuracy inherent in the methods used to assess the structural behaviour; and


action effects arising from the differential settlement of foundations, and from restrained dimensional changes due to temperature, moisture, shrinkage, creep and similar effects.


Glass installations that are at risk of being subjected to human impact must have glazing that—


if broken on impact, will break in a way that is not likely to cause injury to people; and


resists a reasonably foreseeable human impact without breaking; and


is protected or marked in a way that will reduce the likelihood of human impact.