3:00 PM, 30 September 2017

MBIE consultation: building code verification method B1/VM1 update and proposed loop bar ban 2017

Have your say - Important changes for the steel industry

The Ministry of Business, Innovation and Employment (MBIE) is proposing to: 

  • Update Verification Method for B1 Structure (B1/VM1) to cite the latest version of NZS 3101:2006 Concrete Structures Standard: Part 1 – The Design of Concrete Structures (i.e. Amendment 3).
  • Update Verification Method for B1 Structure (B1/VM1) to replace sections of NZS 3404.1:1997 Steel Structures Standard to reflect current practice for steel fabrication and construction.
  • Ban the use of the loop bar (also known as ‘pigtail’) connection detail associated with the support of precast concrete flange-hung double-tee flooring units.

The proposed amendments are part of MBIE’s response to the investigation into the performance of Statistics House in the 14 November 2016 Hurunui/Kaikōura earthquakes and recommendations from the Canterbury Earthquakes Royal Commission.

Modifications to the referencing of NZS 3404.1:1997 are not related to the Statistics House investigation, but are a timely update that will ensure B1/VM1 remains relevant to the steel industry.

Significant changes for the steel industry include:

  • AS/NZS 5131 will replace NZS 3404.1 as the cited standard for fabrication and erection of structural steelwork. The new Structural Steelwork Fabrication and Erection Standard, AS/NZS 5131, defines good practice for fabrication and erection of structural steelwork for projects in New Zealand, and provides the basis for the Steel Fabricators Scheme (SFC) which was jointly introduced by HERA and SCNZ in 2014.
  • The inclusion of the latest AS/NZS structural steel material and welding standards.
  • The inclusion of a European standard for high strength structural bolts.

The Ministry of Business, Innovation and Employment (MBIE) has released a Consultation document on the proposals. The deadline for written comments is 5pm on Monday 20 November 2017.

Click here to view the Statement of Proposal and for information on how to submit your comments.

Should members have any queries on the proposed changes, please contact General Manager Structural Systems Dr Stephen Hicks by email or phone 09 262 4841.