20.5Fabrication of guardrail components#

20.5.1Fabrication standard#

Except where otherwise stated in this Technical Specification, all welded components shall be fabricated in accordance with the requirements of MRTS78 Fabrication of Structural Steelwork.

20.5.2Welding personnel in Australia#

All welders shall:

1. a)Satisfy conditions A & B of Clause 4.12.2 of AS/NZS 1554.1.
2. b)Welding personnel require macro re-qualification on a 12 monthly basis for each weld procedure undertaken on Transport and Main Roads projects.
3. c)For SP welding, have a trade qualification, or demonstrate competence equivalent to a trade qualification, and d) Welding personnel who do not conform to the requirements of (b) then the following shall be met:

1. i.welders shall be permitted to undertake only fillet welds up to a maximum of 8 mm, and
2. ii.a representative of Transport and Main Roads Bridge Construction Maintenance and Asset Management shall be present when macro samples are prepared to show conformance with Clause 4.12.2 (b) of AS/NZS 1554.1.

The fabricator shall be responsible for covering all costs associated with witnessing the production of the macro samples. Hold Point 9

Transport and Main Roads reserves the right to withdraw welder qualification if welding is below Transport and Main Roads requirements.

20.5.3Welding personnel outside Australia#

All welding undertaken outside Australia shall:

1. a)Satisfy the conditions of Clause 4.12.2 of AS 1554.1. All welding personnel require macro re-qualification on a 12 monthly basis for each weld procedure undertaken on Transport and Main Roads projects, and
2. b)Have a trade qualification, or demonstrate competence equivalent to a trade qualification subject to approval by Director (Bridge Construction Maintenance and Asset Management).

Transport and Main Roads reserves the right to withdraw welder qualification if welding is below the department's requirements.