The Peninsula Link is a 27 kilometre four lane connection between the Frankston Freeway-East Link Interchange at Carrum Downs and the Mornington Peninsula Freeway at Mount Martha.

The project was completed in 2013 with a total delivery cost of $759 million. The project includes 28 bridges comprising 45 separate structures. The Robert Bird Group provided structural engineering services for temporary works and independent third party certifications of temporary works.

Project Value:
$759 million
Year Completed:
2013
Sectors:
Infrastructure

Client:
Linking Melbourne Authority (LMA)
Primary Contractor:
Abigroup Contractors
Robert Bird Group Services:
Construction Engineering

Key technical challenges

  • The primary tower structure consists of a composite slab and beam structure. Due to the long beam spans and thin slab, extensive analysis for footfall vibration was required to ensure the structure achieved code requirements and client expectations.
  • Working with the existing structure and developing design solutions that strengthened rather than demolished.
  • Extensive co-ordination with the mechanical engineer to develop a strategy that minimised beam penetrations and beam notches.
  • Differential shortening analysis with consideration of mega truss, steel structure, concrete structure and existing structural elements

Environmental performance

  • 5 Star Greenstar
  • 5 Star NABERs Energy and 4 Star NABERs Water ratings.

A key achievement of the project was the horizontal sliding of the new 70m long Stony Point rail bridge over the freeway. The 5000 tonne bridge was slid into place and the railway tracks were reinstated during a 72 hour shutdown, thereby minimising impact to train services.

Other works packages included:

  • Formwork design for pouring of bridge piers, abutments and headstocks
  • 33m long temporary suspension bridge for support of existing services over the new freeway
  • Site inspections
  • Independent review and certification of temporary works, formwork and access systems for new
  • bridges over the freeway

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