Monday, January 4, 2010
Burj Dubai: World's Tallest Building
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.”
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.
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.
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 façade, at 512 metres (1,679.8 ft).
A staggering total of 24,348 panels cover a curtain wall area of 132,190 square metres (1.4 million sq ft). But the Burj Dubai’s shimmering exterior is designed to minimise heat transmission into the building itself, therefore saving energy. Condensation from the panels is also collected and used for landscape irrigation.
Pinnacle of achievement
Burj Dubai’s spire may resemble a needle at ground level, but in reality it is a colossal structure made up of 4,000 tonnes of structural steel. Nor is it exclusively ornamental, housing as it does communications equipment for the tower.
With a total built up area of around 6 million square feet, Burj Dubai is set to become a living, vibrant community in the heart of Dubai. Around 2 million square feet inside the tower is dedicated to luxury residential apartments, while more than 300,000 square feet is allocated for office space. That’s in addition to the sections of the tower taken up by the world-first Armani Hotel Dubai and the Armani Residences Dubai.
Countless artworks by prominent Middle Eastern and international artists, including sculptures and various contemporary installations, adorn the interiors of Burj Dubai and line Emaar Boulevard throughout Downtown Burj Dubai.
Life of luxury
A total of 57 elevators and eight escalators serve people living, working and enjoying their leisure time inside the tower. Burj Dubai has four swimming pools, a cigar lounge, residents’ lounge, the fine dining restaurant ‘At.mosphere’, and a variety of health and fitness facilities.
Moreover, the tower’s 124th floor observation deck, ‘At the Top, Burj Dubai’, offers 360-degree views of the city and is open to the public.
Burj Dubai features ‘The Offices’, a 12-storey annex of prime office space; ‘The Club’, a four-storey health and fitness centre; and ‘Armani/Pavilion’, an outdoor entertainment venue that opens onto the Burj Dubai Lake and The Dubai Fountain, described as the world’s tallest ‘performing fountain’.
Heart and soul
Demonstrating that Burj Dubai is more than just a building, its creators have perfected a written narrative that evokes the tower’s soul.
Visitors to the ‘At The Top, Burj Dubai’ observation deck can read the ‘I am Burj Dubai’ legend once they reach the ‘From the earth to the sky’, section of the tour.
Its opening stanza reads: “I am the power that lifts the world’s head proudly skywards, surpassing limits and expectations. Rising gracefully from the desert and honouring the city with a new glory, I am an extraordinary union of engineering and art, with every detail carefully considered and beautifully crafted...”
“I am the heart of the city and its people, the marker that defines Emaar’s ambition and Dubai’s shining dream. More than just a moment in time, I define moments for future generations…”
From the ‘‘From the earth to the sky’’, one can view Level 124 and the summit of Burj Dubai at a near vertical angle.
About Burj Dubai:
A mixed-use tower featuring the world’s first Armani Hotel Dubai and Armani Residences, alongside corporate suites, residences, retail and leisure facilities, Burj Dubai is at the centre of Downtown Burj Dubai, a 500-acre mega-development by Emaar Properties. Among an array of lifestyle amenities, the tower will have a public observation deck - At the Top, Burj Dubai - on level 124.
Described as the new heart of Dubai, Downtown Burj Dubai encompasses The Dubai Mall, one of the world’s largest shopping and entertainment destinations; several hotels; offices and homes. A stellar attraction within the community is The Dubai Fountain, the world’s tallest performing fountain.
At over 800 metres (2,625 feet), the Burj Dubai has already achieved the distinction of being the world's tallest structure surpassing the KVLY-TV mast (628.8 metres; 2,063 ft) in North Dakota, USA. The tower is taller than Taipei 101 in Taiwan, which at 508 metres (1,667 ft) has held the tallest-building-in-the-world title since it opened in 2004. Burj Dubai also surpassed the 31-year-old record of CN Tower, which at 553.33 metres (1,815.5 ft) has been the world’s tallest free-standing structure on land since 1976.
Designed by Chicago-based Skidmore, Owings and Merrill (SOM), Burj Dubai is constructed by high-rise experts South Korea’s Samsung Corporation. New York-based Turner Construction International is the project and construction manager. The tower employs the latest in wind engineering, structural engineering, structural systems, construction materials and construction methods. For more information, please visit: www.burjdubai.com
About Emaar Properties PJSC:
Emaar Properties PJSC, listed on the Dubai Financial Market, is a global property developer with a significant presence in key markets world-wide. Besides building residential and commercial properties, the company also has proven competencies in shopping malls & retail, hospitality & leisure, education, healthcare and financial services sectors.
Emaar is set to inaugurate Burj Dubai, the world's tallest building and free-standing structure, and has opened The Dubai Mall, the world’s largest shopping and entertainment destination. In Saudi Arabia, Emaar is developing King Abdullah Economic City, the region's largest private sector-led project in Saudi Arabia, featuring a Sea Port, Central Business District, Industrial Zone, Educational Zone, Residential Communities and Resort District.
Emaar has joined hands with Giorgio Armani to strengthen its presence in hospitality. The company is also opening educational institutions and healthcare centres in South Asia, Middle East and North Africa and the Subcontinent.
Emaar holds 30 per cent equity in Dubai Bank, focused on retail and commercial banking. Emaar is also the largest shareholder in Amlak Finance, UAE's leading Islamic home financing company. For more information, visit www.emaar.com.