Rosanna Library & Supermarket, VIC – Post-Tensioning Project
Interspan delivered the post-tensioning design and construction (D&C) scope for the Rosanna Library & Supermarket development in Victoria, a mixed-use project combining retail infrastructure with a major community facility.
Located at 72 & 44 Turnham Avenue, Rosanna, the development integrates a Woolworths supermarket with a new council library designed to meet the evolving needs of the local community.
Through a partnership with Woolworths, the new Rosanna Library will be a three-storey, 1,600m² facility incorporating children’s learning spaces, co-working areas, meeting rooms, quiet zones, Maternal Child Health services, a toy library, and indoor/outdoor community spaces.
Post-Tensioning Design Challenges
Structural Integration with Steel Framing:
Curved façade and steel framing introduced lateral load transfer into the PT slabs.
Exposed Slab Finish:
Required high crack control and precise tendon profiling.
Concealed Pan Requirements:
All pans were required to be hidden, increasing the complexity of detailing.
Integrated Dowel and Sleeve Supply
As part of the PT package, Interspan coordinated and supplied:
• TMJ horizontal sleeves
• Vertical sleeves
• Square dowels
This integrated approach ensured accurate placement, alignment with reinforcement and formwork systems, and seamless coordination across trades.
Delivery Outcomes
- High-quality exposed PT slab finishes
- Effective integration with structural steel systems
- Coordinated dowel and sleeve installation across trades
- Efficient delivery within a tight programme
Community Outcome
The new Rosanna Library will be double the size of the existing facility, providing a modern, flexible environment for learning and community use.
Builder | Aspekt |
| Frame Contractor | Oceania Universal |
| Consulting Engineer | KD Engineering |
| Scope | Design & Construct (Post-Tensioning) |
| Post-Tensioned Area | 4,846m² |
| Programme | October 2024 – May 2025 (PT works) |
| Concrete Strength | 40 MPa |
| Analysis Software | RAM Concept |
Interspan
Interspan uniquely integrates in-house post-tensioning expertise, advanced forensic diagnostics, and cutting-edge strengthening technologies to enable a single-source delivery model trusted by global developers for complex retrofit and reuse projects.
NEW STRUCTURES
The Interspan Group brings unique expertise in post-tensioning, construction methodology, and lifting operations that reduce CO₂ emissions, material usage, and construction program.
EXISTING STRUCTURES
We specialise in helping clients extend the lifespan of concrete structures through advanced repair, strengthening, and carbon-fibre solutions. Adaptive reuse projects are a perfect fit for our expertise, helping to minimise waste while delivering safe, modern outcomes that support community growth.
Over the last decade, the Interspan Group has become a market leader in the application of CFRP-strengthening solutions, with notable projects including the award-winning The Space House in London and the Quay Quarter Tower in Sydney.
Quality Assurance
Quality Assurance holds immense significance for Interspan because it impacts the safety of our operatives and future occupants, the long-term durability of our structures, and our client satisfaction and relationships.
Interspan is accredited under CARES APTO1 for the Production and Supply of Post-tensioning Anchorage Systems and is the only post-tension contractor in Australia accredited under CARES APTO4 for the supply and installation of Post-tensioning systems in concrete structures.
Sustainability
Post-tensioning and adaptive reuse are powerful design approaches that reduce material use and embodied carbon—delivering more efficient, resilient, and sustainable structures for the future.
Australia – NSW
United Kingdom & Ireland
