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The reinforced-concrete construction of the Burj Dubai has now (April 2007) reached two thirds of its final height. If work continues progressing to plan, the central structure core, with an overall height of 601 m (from the foundations) will be finished by October of this year. This reinforced concrete core will then be topped by a steel pinnacle construction which – when it is completed by the end of 2008 – will determine the final record height of the building.
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The swift progress of work to date has been assured by Doka SKE 100 automatic climbers; in the typical storeys of the tower, these have enabled the central shaft core to be formed in a continuous 3-day cycle.
The Doka MF240 climbing-formwork systems used for the sturdy outside pillars in the projecting “nose areas” have also made a major contribution towards speeding up construction operations in the upper storeys, by using the “climbing ahead” method.
Outstanding workplace safety is ensured by the completely enclosed working platforms of the Doka climbing and automatic climbing formwork, and by the Doka protection-screen system for safeguarding the exposed slab edges. Right from the outset, these efficient safety precautions ensured that all forming operations proceeded smoothly and completely without accident.
Since early 2005, some tough construction and formwork-engineering challenges have had to be solved on the Y-shaped structure core and the wing walls, all while fulfilling extremely stringent safety requirements. It is interesting to note here that the honeycombed structural design, with its many airframe-like stiffening reinforcements, dictates an unusually high proportion of wall-forming operations for a high-rise structure. In fact, at 430,000 m², the area of wall to be formed on the Burj Dubai is twice as large as that for the floor slabs.
Following completion of the structure core towards the end of 2007, and the subsequent structural steel works on the “pinnacle”, the final height of the world’s tallest skyscraper should be known by the end of next year. Once the extensive interior fitting work has been completed, this new landmark of the modern Arab world should be ready for occupancy in 2009, after around 5 years under construction.
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The central structure core of the Burj Dubai has already reached a height of 400 m.
Doka is providing superlative workplace safety – and not just for the wall-forming operations on the structure core and wing walls: A self-climbing Doka protection-screen system is in action for safeguarding the exposed edges during the floor-slab forming operations on the following storeys.
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