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New amendment to the Verification Method B1/VM1 is released and a warning is issued on 3 April 2018.

MBIE amended the Verification Method B1/VM1 and issued a warning about the use of loop bar details in flange-hung double-tee precast concrete floor units on 3 April 2018.

On 3 April 2018 MBIE released the Amendment 16 to the Verification Method B1/VM1 and issued a warning about the use of loop bar details in flange-hung double-tee precast concrete floor units.

Newly released Amendment 16 to the Verification Method B1/VM1:

Warning 2018/001

The amendment and warning 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.

 Amendment 16 to B1/VM1 includes:

  • an updated reference to the New Zealand Concrete Structures Standard NZS 3101.1:2006 Amendment 3. 
  • updated requirements to the citation of the Steel Structures Standard NZS 3404.1:1997 that references 11 updated standards:

The amendments ensure that the latest performance requirements are provided as a means of compliance.

The latest version of the Concrete Structures Standard includes enhanced provisions for the design of precast floors, which, in combination with the warning on loop bar details, will make these types of floors safer. 

 

Notification date: 4 April 2018


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