Burj Khalifa enjoys successful launch
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Dubai announced Burj Dubai to the world with the claim, ‘History Rising’. Six years on and history has most certainly ‘risen’.
Burj Dubai will soon be transformed into a vibrant community for thousands of residents, employees, hotel guests and tourists. Up to 12,000 people will live, work and play inside the world’s tallest building.
The tower is the focal point of the 500-acre master planned community Downtown Burj Dubai, which is widely described as the most prestigious square kilometre on earth.
Burj Dubai is the development’s crowing glory in every sense, a building that has pushed the boundaries of design and engineering further than many thought possible.
Excavation work for the tower began soon after the announcement of its launch, with more than 60 contractors and consultants joining forces on a project of unprecedented scale and ambition.
When construction work was at its most intense, more than 12,000 people from over 100 countries were working every day at the Burj Dubai site. In total, Burj Dubai took 22 million man hours to build.
Mr. Mohamed Alabbar, Chairman, Emaar Properties, said Burj Dubai was a shining example of global collaboration. “Burj Dubai shows just what can be achieved when people from all over the world come together to strive for a common purpose.”
Strong foundations
Standing at more than 800 metres (2,625 ft), Burj Dubai captivates audiences with its height. But its construction underground is equally worthy of fascination. More than 45,000 cubic metres (1.59 million cubic ft) of concrete, weighing more than 110,000 tonnes, make up the tower’s steel-reinforced foundations with 192 piles running to a depth of over 50 metres (164 ft).
Inspired by nature
Work on Burj Dubai’s superstructure began in March 2005, with the foundation work alone taking 12 months. The distinctive triple-buttressed outline of the Burj Dubai was inspired by the desert lily Hymenocallis.
Wind factor
Extensive seismic and wind tunnel testing was carried out to perfect the design of the tower. The triple-buttressed shape of Burj Dubai allows it to manage the effect of wind vortices generated around the tower, as well as changes in atmospheric pressure between its base and spire.
Rock solid
The main construction material of Burj Dubai is reinforced concrete, specially designed to withstand the staggering pressures inherent in the world’s tallest building.
In total, Burj Dubai employs a record-breaking 330,000 cubic meters (11.6 million cubic feet) of concrete; 39,000 metric tonnes of reinforced steel; 103,000 sq m (1.1 million sq ft) of double glazed glass; and 15,500 sq m (166,800 sq ft) of embossed stainless steel.
Climbing to the sky
Once the lengthy construction work of its foundation was complete, the vertical ascent of Burj Dubai was surprisingly fast. The first 100 levels of the tower were completed only 1,093 days after excavation started. A level was added every three days before the uppermost levels of the tower were reached.
In November 2007, the concrete for the highest reinforced core walls of Burj Dubai was pumped from ground level to a height of 601 metres (1,978 ft), breaking the previous record for concrete pumping held by Taipei 101. The pressure generated during the pumping work reached nearly 200 bars.
A glass act
Work on the glass and aluminium exterior cladding of Burj Dubai started in May 2007 and was completed in September 2009. Nearly 400 skilled engineers were assigned to the project. At the outset, around 20-30 cladding panels were installed each day. The daily rate of installation reached 175 panels as the project neared completion. Burj Dubai has set a new world record for the highest installation of an aluminium and glass fa
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