Green Star FAQs

Yes, projects may pursue one (1) innovation point through 30A Innovative Technology or Process where the use of 750 MPa steel fitments of a reduced diameter are installed in lieu of equivalent 500 MPa fitments** (also known as ligatures) under the following conditions:

• A minimum of 70% of the structural columns for the entire building, by length, are concrete and require steel reinforcement; and
• 95% or more of the fitments used in these columns are ≥750 MPa replacing the equivalent 500 MPa fitments**; and
• 95% or more of the fitments are supplied by a Steel Maker that meets the Responsible Steel Maker requirements in the Responsible Building Materials (20.1) credit; and
• the fitments supplied meet Australian Standard AS 3600-2018 and have a CEV value not exceeding 0.49; and
• is a trademarked product; and 
• The project team achieves either
  • One (1) point in the Reduced Use of Steel Reinforcement (Concrete framed building) credit (19B.2B) not including the reduction in mass of fitments; or
  • An improvement of 4% in the Climate Change Impact category of the Life Cycle Assessment credit (19A) across all modules as a whole, excluding the B6 Operational Energy module.

Documentation requirements

Project teams wishing to pursue this innovation point are required to provide the following documentation:

• Structural engineer's specification
• Drawings & summary demonstrating the percentage of columns requiring fitments/ligatures
• Completed spreadsheet Steel_reduction_500N_to_750N_fitments_template.xlsx demonstrating the reduction in mass based on replacing 500 MPa with the smaller, higher grade 750 MPa fitments
• Delivery docket and/or invoice confirming supply
• Evidence of Responsible Steel Maker requirements
• Evidence the fitments were produced in line with AS 3600-2018
• Evidence of the product's trademark in line with the conditions outline
• 30A Innovative Technology and Process submission template, specifying the pathway achieved,i.e 19A or 19B.2B.

Notes:

*The validity of this innovation claim will be reviewed in May 2021, 2 years after initial publication in May 2019. Projects registered during this time can pursue this innovation beyond this date. This innovation claim is only available to projects registered to Green Star - Design & Built

**Replacement values:

500 MPA 10mm diameter can be replaced by 750 MPa 8.2mm dia
500 MPA 12mm dia can be replaced by 750 MPa 9.8mm dia
500 MPA 16mm dia can be replaced by 750 MPa 13.1mm dia

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