Masterspec
12 Jan 2021
NEW PRODUCT PARTNER SECTIONS FOR JANUARY 2021
In case you missed our Masterspec NOTES at the beginning of the month, here is a list with reference links for the new Product Partner work sections...
08 Dec 2020
MASTERSPEC BEGINS A NEW INDUSTRY PARTNERSHIP WITH STEEL CONSTRUCTION NEW ZEALAND (SCNZ)
Masterspec and SCNZ are delighted to announce a new industry partnership to support the structural steel design, fabrication and erection in the New...
26 Nov 2020
STORMWATER DRAINAGE DESIGN – NEW OPPORTUNITIES IN NZBC E1 NOVEMBER 2020 UPDATE
November 2020 brought a number of updates to the Building Code, including a new Acceptable Solution in the form of E1/AS2 in its newest version,...
26 Nov 2020
GREEN STAR UPDATE TO VERSION 1.0
The Green Star Technical Manual v3.2 has been superseded by Green Star Design and As Built NZ v1.0. Also Green Star Office Interiors v3 has been...
24 Nov 2020
GUTTER & DOWNPIPE DESIGN MADE EASY
It is not often that changes to the NZBC Acceptable Solutions and Verification Methods provide a windfall that makes life a whole lot easier for a...
29 Oct 2020
LATEST BUILDING CODE 2020 UPDATES
Earlier this year MBIE ran public consultation on proposed changes to a number of Acceptable Solutions and Verification Methods. Despite a number of...
06 Oct 2020
THE STATE OF CONSTRUCTION – BY THE NUMBERS
At Masterspec the amount of specifications live on the platform at any one time has always given us an indication of the health of the industry. In...
29 Sep 2020
UPDATES TO MASTERSPEC SUSTAINABLE & GREEN BUILDING GENERAL SECTIONS
A number of the formal sustainable systems, Living Building Challenge and Green Star, have recently made significant changes to their systems....
01 Sep 2020
AMENDMENTS TO STRUCTURAL STEEL STANDARD AS/NZS 5131
AS/NZS 5131: 2016, Structural Steelwork - Fabrication and Erection is cited in NZBC B1/VM1, 5.0 Steel. This new Amendment A1, which has just been...
04 Aug 2020
WHAT ON EARTH IS EQUIPOTENTIAL BONDING
This month Masterspec has added more clauses to the electrical sections about earthing and equipotential bonding of conductive elements of the...
02 Jul 2020
NEW GENERIC WORK SECTION 7765 - ELECTRIC VEHICLE (EV) CHARGING STATIONS
Masterspec's new generic section, 7765 Electric Vehicle (EV) Charging Stations, responds to increasing EV ownership and NZTA's coordination of NZ's...
30 Jun 2020
REPLACEMENT STANDARDS FOR CEILINGS & SPRINKLERS
There have been quite a few new and amended Standards since the beginning of lockdown. Two major replacement Standards you should know about...
30 Apr 2020
STRUCTURAL INSULATED PANEL SYSTEMS (SIPS) - AN ALTERNATIVE BUILDING SYSTEM
Masterspec introduces a new generic section 3876 STRUCTURAL INSULATED PANEL SYSTEMS (SIPS) (available in Standard, Basic,
23 Apr 2020
COVID-19 GUIDANCE FOR THE SPECIFIER
Masterspec's Managing Editor Alex Shaw suggests how using the information at this link can help ensure your project fulfils its obligations to provide...
31 Mar 2020
SCHEDULING FUNCTIONALITY INCREASED TO INCLUDE SLIP RESISTANCE
To help reduce repetitive content and streamline the user experience, a new schedule section 1278SR SCHEDULE OF SLIP RESISTANCE TESTING has been...
31 Mar 2020
PROPOSED BUILDING CODE UPDATES - CONSULTATION REPORT APRIL 2020
MBIE are proposing changes to a number of Acceptable Solutions and Verification Methods which can be viewed in their consultation document....
17 Mar 2020
MASTERSPEC TOOLS FOR REMOTE WORKING
With the challenges facing everyone in the coming months it’s likely to be busier than ever for many Masterspec users. Here are some of the Masterspec...
17 Dec 2019
BUILDING CODE NOV 2019 UPDATES - INTERIM CHRISTMAS REPORT
On 28 November 2019, the transition period started for updates to six Acceptable Solutions and Verification Methods. Masterspec has almost completed...
17 Dec 2019
NEW GENERIC SECTION 7455 STORMWATER SOAKAGE SYSTEMS
The section relates to the design, supply and installation of stormwater soakage systems for residential and non-residential applications. Stormwater...
16 Aug 2019
UPGRADED EDITOR ON NEXTGEN2
We have been working on improvements to the editor function on NextGen2, and the new upgrade will go live from the weekend of the 17th of August. You...

AMENDMENTS TO STRUCTURAL STEEL STANDARD AS/NZS 5131

01 Sep 2020

AS/NZS 5131: 2016, Structural Steelwork - Fabrication and Erection is cited in NZBC B1/VM1, 5.0 Steel. This new Amendment A1, which has just been released, of course is not cited yet and so the use of amendment A1 would be an Alternative Solution.
However if you do want to use the new amendment and all its changes, the following is a short review of those changes.

Traceability
This is by far the major change, with modifications to the definitions (Section 4) and application (Section 5) of traceability, apparently to better align with international practice.

Clause 4.7.1 has renamed and redefined the three types of traceability.

a) Was Basic Traceability - now Lot Traceability (see Clause 4.7.2 for definitions)
b)
Was Partial Traceability - now Piece-mark Traceability (see Clause 4.7.3 for definitions)
c)
Was Full Traceability - now Piece Traceability (see Clause 4.7.4 for definitions)

Clause 5.2.3 (NZ) has re-correlated traceability and Construction Categories (CC1 to CC4).

i. CC1:  No specific traceability requirements (old & new versions)
ii. CC2:  Was Basic Traceability - now no formal type of traceability just Test Certificates to be provided and Grades of Steel to remain identifiable
iii. CC3 & CC4:  Was Partial Traceability - now Lot Traceability for main structural members, connections between main structural members and major plate components. Test Certificates to be provided for all steel and Grades of Steel to remain identifiable for minor components. Extending Lot Traceability to all steel items, or applying Piece or Piece-mark Traceability is an option for the specifier where appropriate.

Clause 6.2 IDENTIFICATION AND TRACEABILITY for welding (NZ) has aligned the requirements for CC3 & CC4 with the new traceability requirements. There are no specific formal traceability requirements for CC1 or CC2 in the new version, although testing reports/certificates may still apply.

Bolt Tension
Table 8.5.5 MINIMUM BOLT TENSION was just for Grade 8.8 bolts, but now also covers Grade 10.9 bolts.

NZS 3404 Steel Structures Standard
The new version has replaced ‘NZS 3404.1’ with ‘NZS 3404’. In point of fact nothing has changed, NZS 3404; 1997 still has a Part1 and a Part 2, however they have taken upon themselves to refer to it as a single document?

Welding Quality Requirements
Clause 7.1.1 QUALITY REQUIREMENTS has had a slight update of Standards for the different Construction Categories.
CC1 was to AS/NZS 1554 or AS/NZS ISO 3834.4 ‘Elementary quality requirements’ - now only AS/NZS ISO 3834.4 (AS/NZS 1554 deleted).
CC2, CC3 & CC4 are unchanged.

Fusion Welding
AS/NZS ISO 9606.1: Qualification testing of welders - Fusion welding - Steels, in the new version, has replaced ISO 9606.1.

Minor Changes
There are a considerable number of minor changes, with a large proportion of them to do with the sense of performance. For instance there are a lot of - 'shall' replaced by 'should' - 'approve' replaced by 'review' etc. Some of these changes have added value, but some seem just less definitive?

Australia Only Changes
Some of the changes only affect Australian requirements.  For instance Appendix G STANDARD TEST FOR EVALUATION OF SLIP FACTOR, which did apply to New Zealand and Australia, in the new version it will not apply to Australia, but still apply to New Zealand.  Australia will now use AS 4100 instead.

Masterspec
Until NZBC B1/VM1, 5.0 Steel cites Amendment A1, Masterspec will continue with the pre-amendment version of AS/NZS 5131: 2016. Over the next few months, for those that need them, we will add some background on the impact of Amendment A1 to the guidance notes of the structural steel sections.

 

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