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P2.1.1 Structural stability and resistance to actions

(a)

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

(i)

perform adequately under all reasonably expected design actions; and

(ii)

withstand extreme or frequently repeated design actions; and

(iii)

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

(iv)

avoid causing damage to Open link in same pageother properties,

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

(b)

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

(i)

permanent actions (dead loads); and

(ii)

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

(iii)

wind action; and

(iv)

earthquake action; and

(v)

snow action; and

(vi)

liquid pressure action; and

(vii)

ground water action; and

(viii)

rainwater action (including ponding action); and

(ix)

earth pressure action; and

(x)

differential movement; and

(xi)

time dependent effects (including creep and shrinkage); and

(xii)

thermal effects; and

(xiii)

ground movement caused by—

(A)

swelling, shrinkage or freezing of the subsoil; and

(B)

landslip or subsidence; and

(C)

siteworks associated with the building or structure; and

(xv)

termite actions.

(c)

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

(i)

known construction activities; and

(ii)

type of material; and

(iii)

characteristics of the site; and

(iv)

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

(v)

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

(d)

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

(i)

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

(ii)

resists a reasonably foreseeable human impact without breaking; and

(iii)

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