Australian Towers II is a 603 residential unit development situated in the heart of the Sydney Olympic Park. The development is the tallest in the area and boasts 360 degree views of all of Sydney.

The WGE hydraulic team were involved in the tender documentation for the Hydraulic & Fire services and have also been engaged by the hydraulic contractors for the construction phase services which involves detailed coordination with the construction team as well as advice to the contractors.

The large structural offsets at the base of the towers created a particular challenge for the WGE team. The difficultly was in the coordination of the transferring hydraulic services sewer and storm water through the 1200x 1200 transfer beams and large transfer slabs. We achieved the transfers while maintaining 3m-3.7m clearances over the car parking and deliver dock areas, we transferred pipe sizes in up to 225mm for sewer and 375mm for storm water.

Working around large structural elements area’s in which we found efficiencies:

Straight sanitary risers for all the floors for both buildings from the transfer level to the penthouses. We achieved this by working with the architects to create a single position for each rise that would suit different apartment floors changing all the way up the building. The sanitary area’s more or less pivoted from the riser location so that adaptation for each different level was possible without the need for offsets and transfers. By maintaining the straight rise the team were able to maintain the riser pipes and risers themselves to a small size. The sanitary pipework and relief vents were maintained to 100mm in diameter when it is normally expected to be at 150mm for such a building because of the offsets etc.

The cold water, hot water and gas risers and meters were centralized to two cupboards per core. The immediate reduction of pipework was in excess of 40 risers throughout the two towers which without nominating pipe sizes reduced the length of pipework required to deliver essential amenity to the building was around 10,500m of pipe. This not only reduced the cost to the project it saved the number of man hours and additional energy used both human and electrical to install the risers.

See this project in other media:
1 Australia Avenue
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