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FLOATING STRUCTURES


and the need for it to be accessible. A new design in gangway floormechanicsmaintains level


intermediate landings throughout the tidal range. Aurecon believes this is the first time such a design has been used for achieving compliant disabled access. Commenting on the collaborative approach taken


to the ferry terminal design, Cox Rayner Director Brendan Gaffney said: “These new generation terminals are a fine example of how architects and engineers can work together to evolve building technology beyond themundane and into new territory.We challenged each other throughout the process, not only to solve the technical aspects of Brisbane City Council’s brief, but to push the limits of the possibilities across every single component.” According to Arne Nilsen, Aurecon’s Project


Director for the ferry terminals, the company’s approach is complex in detail but simple in concept. “We work closely with our architect partners to bring aesthetic and resilient solutions to life. Accordingly, the pontoon is both functional and visually appealing, providing largely unobstructed views of the river,” he said.


MOVING STRUCTURE HERITAGE This is not the first project that Aurecon has been involved in thatmakes use ofmoving architecture. In designing the ferry terminals, Aurecon transferred skills gained inmajor industrial mechanical projects for bulkmaterials handling, ship loading facilities and buildings projects into a marine passenger transport environment. Aurecon has been engaged on every stadium


moving roof project in Australia and its products are very different to those that other engineers have delivered elsewhere in the world. According to Arne Nilsen, the way such design challenges are overcome is to develop driving and restraint systems that simplify the load responses, significantly reduce operating risk and improve resilience of these massive structures, some of which span up to 160m. Hugemoving structures, such as a retractable


stadiumroof, require a unique integration of mechanical, electrical controls and structural designs to be built into the elegance of the architecture. “To maintain the essence of the architect’s design, Aurecon draws upon our engineering experience gained acrossmany sectors and disciplines,” said Nilsen. “At the heart of our design is the retention of the vision created by the architect, while creating a piece of infrastructure that is durable, easy to maintain and cost-efficient to operate.” The success of using such innovative engineering


on architectural projects will inevitably lead to other applications formoving architecture.When asked what benefits other applications could gain fromthe technology, Aurecon explained that the company’s experience in the design of industrialmachinery is pivotal to the development and integration of this concept intomaritime transport infrastructure. It is now exploring applications for this technology in other areas of transport to improve accessibility, including aerobridges and cruise vessel access. EE


14 /// Environmental Engineering /// December 2016 BRISBANE FLOOD


In January 2011, the Brisbane River burst its banks and brought the city’s transport to its knees. Vital to trade and daily activities in the city, river transport services all but ceased to function and a third of the 12 commercial pierswere out of action. At the time, the LordMayor of


Brisbane, Campbell Newman, expressed his sense of awe and horror at the power of the river. Mooringswerewrecked and pontoons broke free of the river-banks to float freelywith theirmoored boats,


creating a danger downstream. Newman estimated that nearly 20,000 properties in the citywould experience flooding alongwith 3,500 businesses. Residents in Australia’s “river city”


had found that its greatest natural asset had turned against themand were determined it shouldn’t happen again. The city council sank A$100m into upgrading the Brisbane ferry terminal network to secure the city’s transport infrastructure into the future,whatever theweather.


 Modern architecture with innovative engineering design graces the picturesque Brisbane river. The bridge deck provides accessibility for wheel chairs and mobility aids despite tidal level


 Formore information and to see a video of howmoving architecture is helping to keep Brisbane ferry terminals safe fromflood-waters, scan the QR code or visit http://environmentalengineering.org.uk/news/moving- pontoons-protect-brisbane-ferry-port-3510/


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