The Cockburn Volunteer Emergency Services Headquarters is a combined two storey office, warehouse and storage facility. The design utilised tilt-up precast panels, a pre-tensioned, precast suspended slab system and an efficient, long span steel roof. This meant construction was fast, in-expensive and was completed on time and on budget. 

Project features include: 

  • Tilt-up precast concrete construction
  • Pre-tensioned precast concrete suspended floor system
  • Long span steel roof
  • Designed for fast, efficient construction

Project Value: 
$2 million 
Year Completed: 
2012 
Sectors: 
Industrial 

Client: 
Gavin Constructions 
Robert Bird Group  
Services: 
Structural Engineering 
Civil 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.

Key technical challenges

RBG redesigned the steel plunge columns enabling complex bracing arrangements and programme hold-points to be removed, hence simplifying excavation and improving health and safety. The ground floor slab was redesigned for significant construction loads and to prop the basement wall whilst maintaining a large void to allow the core to rise.

RBG also checked all permanent works elements for the temporary loads induced by the innovative construction sequence. The construction method further reduced the ground movements, thereby minimising the risk to sensitive network rail facilities adjacent to the site.

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