Part 1 of the revised steel structures Standard – soon to be published
Standards New Zealand will soon publish Steel structures Standard – Part 1: Materials, fabrication, and construction (NZS 3404.1:2009) which will supersede in part NZS 3404 Parts 1 and 2:1997 including Amendments 1 and 2 (NZS 3404:1997).
NZS 3404.1:2009 is the first part to be released in the new steel structures Standard suite.
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[more]Change proposed to wind loading requirements for cantilevered roofs – Amendment to AS/NZS 1170.2:2002 proposed
A recent article by the Department of Building and Housing advised structural designers that, as a result of recent research, a change to wind loading requirements for cantilevered roofs is being proposed. Any structural designer analysing roofs of this type (for example, grandstands of rectangular plan form) should be aware that current requirements may significantly underestimate bending moments on the cantilever.
An amendment to Appendix D5 of AS/NZS 1170.2:2002 is being proposed and public comment will be invited by Standards Australia and Standards New Zealand shortly.
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[more]Use stainless steel fasteners with new high copper timber treatments
Reproduced from Codewords 39, August 2009, Department of Building and Housing.
In the past there have been timber fastener durability concerns with the use of new high copper treatment options as an alternative to the traditionally used CCA treatment (refer to Build magazine February/March 2007). In that article it was recommended to use stainless steel fasteners or durable equivalents such as silicon bronze, when using these new treatments in timber exposed to the weather.
This led to the Department co-sponsoring further research. BRANZ is now publishing details of this 3-year study confirming that significant corrosion rates are being experienced by both mild steel and galvanised nails and screws used as fasteners in Copper Azole (CuAz) or alkaline copper quaternary (ACQ) treated timber (refer to Build magazine article August/September 2009).
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[more]NEW PUBLICATIONS
AS/NZS 4994 Temporary roof edge protection for housing and residential buildings
AS/NZS 4994.1:2009 General requirements
Provides requirements and guidance for designers of equipment for roof edge protection, to prevent workers from falling from roofs or other edges of buildings under construction while performing any work or carrying out any inspections on roofs of all types of buildings. Supersedes AS/NZS 4994.1(Int):2004
→ Buy this Standard
AS/NZS 4994 Temporary roof edge protection for housing and residential buildings
AS/NZS 4994.1:2009 General requirements
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[more]NEW AMENDMENTS
Free to download from our website: www.standards.co.nz
Or hard copy available at $29.95+GST (Members), $37.44+GST (Retail)
AS/NZS 1859 Reconstituted wood-based panels – Specifications
Amendment 1:2009 to AS/NZS 1859.3:2005 Decorative overlaid wood panels
To correct a typographic error in Table 3.1.
→ Buy AS/NZS 1859.3:2005 with Amendment 1 incorporated
AS/NZS 4456 Masonry units and segmental pavers - Methods of test
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[more]DRAFT STANDARD FOR COMMENT
Free to download from our website: www.standards.co.nz
DZ 3104 A2 NZS 3104:2003 Specification for concrete production Amendment No. 2
Draft Amendment No. 2 has been prepared to recognise that there is now more than one type of mechanism used for weigh systems (knife edge/lever arm and load cell). Clause 2.7.3 has been updated to take into account testing of weigh systems that are dependent on load cell mechanisms. An error in 2.9.1 has been identified, where 2.9.3 is referenced. This should read 2.9.4.
Public comment on this draft closes on 12 November 2009
→ View or download draft Standard for comment
STANDARDS IN DEVELOPMENT
Timber framed buildings
Committee: P3604
Project Manager: Mani Taare
Estimated Publication Date: Late 2010, early 2011
Comments: The project is in the draft development stage. The organisational structure for this project includes a Leadership Group, P3604 Technical committee, and five workgroups covering Loadings, Durability, Bracing, Roof framing, and Design appearance and clarity. Several meetings have now been conducted, all focused on having the revised draft ready for public comment by November 2009.
Timber framed buildings
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