الخميس، 12 سبتمبر 2013

Burj Khalifa in dubai

.Burj Khalifa , known as Burj Dubai prior to its inauguration, is a skyscraper in Dubai, United Arab Emirates, and is the tallest man-made structure in the world, at 829.8 m (2,722) ft). 

Construction began on 21 September 2004, with the exterior of the structure completed on 1 October 2009. The building officially opened on 4 January 2010,and is part of the new 2 km2 (490 acres) development called Downtown Dubai at the 'First Interchange' along Sheikh Zayed Road, near Dubai's main business district. The tower's architecture and engineering were performed by Skidmore, Owings and Merrill of Chicago, with Adrian Smith as chief architect, and Bill Baker as chief structural engineer.The primary contractor was Samsung C&T of South Korea.
In March 2009, Mohamed Ali Alabbar, chairman of the project's developer, Emaar Properties, said office space pricing at Burj Khalifa reached US$4,000 per sq ft (over US$43,000 per m²) and the Armani Residences, also in Burj Khalifa, sold for US$3,500 per sq ft (over US$37,500 per m²).He estimated the total cost for the project to be about US$1.5 billion.
The project's completion coincided with the global financial crisis of 2007–2012, and with vast overbuilding in the country; this led to high vacancies and foreclosures. With Dubai mired in debt from its huge ambitions, the government was forced to seek multibillion dollar bailouts from its oil-rich neighbor Abu Dhabi. Subsequently, in a surprise move at its opening ceremony, the tower was renamed Burj Khalifa, said to honour the UAE President Khalifa bin Zayed Al Nahyan for his crucial support.
Because of the slumping demand in Dubai's property market, the rents in the Burj Khalifa plummeted 40% some ten months after its opening. Out of 900 apartments in the tower, 825 were still empty at that time. However, over the next two and a half years, overseas investors steadily began to purchase the available apartments and office space in Burj Khalifa. By October 2012, Emaar reported that around 80% of the apartments were occupied


this some pictures of burj khalifa













Top 10 Burj Khaliffa Facts
  • 31,400 – the amount of steel rebar in metric tonnes used in the structure of Burj Dubai
  • 28,261– the number of glass cladding panels making up the exterior of tower and its two annexes
  • 15,000 – the amount of water in litres collected from the tower’s cooling equipment that will be used for landscaping irrigation
  • 12,000 – the numbers of workers on site during peak of construction
  • 5,500 – the capacity in kilograms of the tower’s service lift
  • 3,000 – the number of underground parking spaces
  • 1,044 – the total number of residential apartments inside Burj Dubai
  • 900 – the length in the feet of the world’s tallest performing fountain, The Dubai Fountain, that lies at the foot of the tower
  • 605 – the vertical height in metres to which concrete was pumped in the construction of Burj Dubai, a world record for concrete pumping
  • 504 – the distance traveled, or ‘rise’ in metres of Burj Dubai’s main service lift, the most of any elevator

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