Two-floor jumpform to hit region

Australian firm Grocon looks to capitalise on the need for speed in the UAE by claiming to halve cycles on projects

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By  Zoe Naylor Published  June 17, 2006

The pace of high-rise construction in the Middle East could be set to increase dramatically thanks to a two-floor jumpform system from Australian contractor Grocon. Huge costs savings could also result as the dual-floor method reduces the amount of steel, as well as the number of labourers required on site. Grocon has already used the system to build two floors at a time on high-rise projects in its homeland, including the 92-storey Eureka Tower in Melbourne, currently Australia’s tallest building. According to David Emery, Grocon’s general manager (engineering), jumping the lift core two floors at a time saw work on the project halved. “We built Eureka Tower in about 47 operations,” he told Construction Week. “All the work was halved, for example, half as much concrete placing, and half as much steel fixing. It also results in half as many joints in the core, so it is actually more robust.” Grocon is currently in talks with Dubai-based developer, Tameer, to introduce its dual-floor jumpform system to high-rise projects in the Gulf — and has set its sights on the 106-storey Princess Tower planned for Sheikh Zayed Road. If it wins the Princess Tower contract, Emery believes that Grocon could cut the number of cycles in half; instead of building the core jump form in 106 operations, it could be built in 54. In addition to saving time, the system can also offer significant cost-savings as, for example, the splicing of the reinforcements is only every second floor, meaning less steel is needed. The number of labourers could also be reduced as the system is lifted using hydraulic rams. “Constructing all of the columns in a mechanised system is particularly beneficial with tall towers as it means there are fewer labourers moving up and down the building,” added Emery.

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