SNZ NZS 4219
Seismic performance of engineering systems in buildings
|Publication Date:||30 April 2009|
This Standard sets out the criteria for the seismic performance of engineering systems related to a building's function. It covers the design, construction, and installation of seismic restraints for these engineering systems. Verification of the supporting structure for gravity and seismic actions is outside the scope of this Standard.
For engineering systems which enter or exit the building through foundations into the surrounding ground, only those items within one metre outside the footprint of the building are included.
The provisions of the Standard may be used for services in new or existing buildings, and for the purpose of retrofitting engineering systems into existing buildings.
Verification of the supporting structure will require consideration of both the local and the global transfer of loading into the structure, for example, heavy plant placed on hollowcore floor slabs and thin toppings.
The following items are included in the scope of this Standard, except as specifically excluded in 1.1.2:
(a) All engineering systems necessary to ensure compliance of the building with the New Zealand Building Code;
(b) All engineering systems essential for the normal functioning of the building; and
(c) Building Compliance Schedule items, such as emergency lighting.
The following items are excluded from the scope of this Standard:
(a) Engineering systems in buildings of importance level 5, as defined in AS/NZS 1170.0;
(b) Individual components with a mass exceeding 20% of the combined mass of the component and the building structure, and with a period of greater than 0.2 seconds;
(c) Items supported on the ground independently of the building, and external to the building;
(d) Lifts (including guide rails) and escalators;
(e) Contents of buildings including portable appliances, and items which are not attached to the building structure;
(f) Fire sprinkler system pipework; and
(g) Suspended ceilings.
Fire sprinkler systems require specialist specific design. Fire sprinkler system pipework should comply with NZS 4541, while items such as water storage tanks, fire pumps, diesel fuel tanks, and the like can be designed in accordance with this Standard. Suspended ceilings should be designed in accordance with AS/NZS 2785.