Part B1 Structural provisions

The structural resistance of materials and forms of construction must be determined in accordance with the following, as appropriate:

1. Masonry (including masonry-veneer, unreinforced masonry and reinforced masonry): AS 3700, except—
   1. ‘(for piers—isolated or engaged)’ is removed from Clause 8.5.1(d); and
   2. where Clause 8.5.1 requires design as for unreinforced masonry in accordance with Section 7, the member must also be designed as unreinforced masonry in accordance with Tables 10.3 and 4.1(a)(i)(C) of AS 3700.
2. Concrete:
   1. Concrete construction (including reinforced and prestressed concrete): AS 3600.
   2. Autoclaved aerated concrete: AS 5146.1.
   3. Post-installed and cast-in fastenings: AS 5216.
3. Steel construction:
   1. Steel structures: AS 4100.
   2. Cold-formed steel structures: AS/NZS 4600.
   3. Residential and low-rise steel framing: NASH Standard – Residential and Low-Rise Steel Framing Part 1 or Part 2.
4. Composite steel and concrete: AS/NZS 2327.
5. Aluminium construction: AS/NZS 1664.1 or AS/NZS 1664.2.
6. Timber construction:
   1. Design of timber structures: AS 1720.1.
   2. Timber structures: AS 1684.2, AS 1684.3 or AS 1684.4.
   3. Nailplated timber roof trusses: AS 1720.5.
7. Piling: AS 2159.
8. Glazed assemblies:
   1. The following glazed assemblies in an external wall must comply with AS 2047:
      1. Windows excluding those listed in (ii).
      2. Sliding and swinging glazed doors with a frame, including french and bi-fold doors with a frame.
      3. Adjustable louvres.
      4. Shopfronts.
      5. Window walls with one piece framing.
   2. All glazed assemblies not covered by (i) and the following glazed assemblies must comply with AS 1288:
      1. All glazed assemblies not in an external wall.
      2. Revolving doors.
      3. Fixed louvres.
      4. Skylights, roof lights and windows in other than the vertical plane.
      5. Sliding and swinging doors without a frame.
      6. Windows constructed on site and architectural one-off windows, which are not design tested in accordance with AS 2047.
      7. Second-hand windows, re-used windows and recycled windows.
      8. Heritage windows.
      9. Glazing used in balustrades and sloping overhead glazing.
9. Termite Risk Management: Where a primary building element is subject to attack by subterranean termites—
   1. AS 3660.1 with additional protection measures to be used in areas where Mastrotermes Darwiniensis are prevalent; and
   2. for the purposes of this provision, a primary building element consisting entirely of, or a combination of, any of the following materials is considered not to be subject to termite attack:
      1. Steel, aluminium or other metals.
      2. Concrete.
      3. Masonry.
      4. Fibre-reinforced cement.
      5. Timber in areas where Mastrotermes Darwiniensis are not prevalent — naturally termite resistant in accordance with Appendix C of AS 3660.1.
      6. Timber — preservative treated in accordance with Appendix D of AS 3660.1; and
   3. where a termite risk management system in accordance with AS 3660.1 is used, a durable notice must be permanently fixed to the building in a prominent location, such as a meter box or the like, indicating—
      1. the method of termite risk management; and
      2. the date of installation of the system; and
      3. where a chemical is used, its life expectancy as listed on the appropriate authority’s pesticides register label; and
      4. the installer’s or manufacturer’s recommendations for the scope and frequency of future inspections for termite activity.
10. Roof construction (except in cyclonic areas):
    1. Roof tiling: AS 2050.
    2. Cellulose cement corrugated sheets: AS/NZS 2908.1 with safety mesh installed in accordance with AS/NZS 1562.3 clause 2.4.3.2 except for sub-clause (g) for plastic sheeting.
    3. Metal roofing: AS 1562.1.
11. Garage doors and other large access doors in openings not more than 3 m in height in external walls of buildings determined as being located in wind region C or D in accordance with AS/NZS 1170.2: AS/NZS 4505.
12. Lift shafts which are not required to have an FRL, must—
    1. except as required by (ii), be completely enclosed with non-perforated material between the bottom of the pit and the ceiling of the lift shaft, other than—
       1. at landing doors, emergency doors and pit access doors; and
       2. low-rise, low-speed constant pressure lifts; and
       3. small-sized, low-speed automatic lifts; and
    2. in atrium and observation areas, be protected with non-perforated material not less than 2.5 m in height—
       1. above any places on which a person can stand, which are within 800 mm horizontal reach of any vertical moving lift component including ropes and counterweights; and
       2. at the lowest level of the atrium area that the lift serves, on all sides except the door opening, for not less than 2.5 m in height, by enclosure with non-perforated material; and
    3. be of non-brittle material; and
    4. where glazing is used—
       1. comply with Table B1D4; or
       2. not fail the deflection criteria required by S6C11(c)(iii).