Burj Khalifa | |
---|---|
برج خليفة | |
Record height | |
Tallest in the world since 2009[I] | |
Preceded by | Taipei 101 |
General information | |
Status | Completed |
Type | Mixed-use |
Architectural style | Neo-futurism |
Location | Dubai, United Arab Emirates |
Address | 1 Sheikh Mohammed bin Rashid Boulevard |
Named for | Sheikh Khalifa |
Construction started | 6 January 2004 |
Topped-out | 17 January 2009 |
Completed | 1 October 2009 |
Opened | 4 January 2010 |
Cost | US$1.5 billion |
Owner | Emaar Properties |
Height | |
Architectural | 828 m (2,717 ft) |
Tip | 829.8 m (2,722 ft) |
Antenna spire | 242.5 m (796 ft) |
Roof | 739.4 m (2,426 ft) |
Top floor | 585.4 m (1,921 ft) |
Observatory | 555.7 m (1,823 ft) |
Technical details | |
Structural system | Reinforced concrete, steel, and aluminium |
Floor count | 154 + 9 maintenance |
Floor area | 309,473 m2 (3,331,100 sq ft) |
Lifts/elevators | 57 (mall included) |
Design and construction | |
Architect(s) | Adrian Smith |
Architecture firm | Skidmore, Owings & Merrill |
Structural engineer | Bill Baker |
Main contractor | Samsung C&T |
Other information | |
Parking | 2 subterranean levels |
Public transit access | M1 At Burj Khalifa/Dubai Mall |
Website | |
burjkhalifa | |
References | |
[1] |
The Burj Khalifa[a] (known as the Burj Dubai prior to its inauguration) is a skyscraper in Dubai, United Arab Emirates. It is the world's tallest structure. With a total height of 829.8 m (2,722 ft, or just over half a mile) and a roof height (excluding antenna, but including a 242.6 m spire)[2] of 828 m (2,717 ft), the Burj Khalifa has been the tallest structure and building in the world since its topping out in 2009, surpassing Taipei 101, the previous holder of that status.[3][4]
Construction of the Burj Khalifa began in 2004, with the exterior completed five years later in 2009. The primary structure is reinforced concrete and some of the structural steel for the building originated from the Palace of the Republic in East Berlin, the former East German parliament.[5] The building was opened in 2010 as part of a new development called Downtown Dubai. It was designed to be the centerpiece of large-scale, mixed-use development. The building is named in honor of the former president of the United Arab Emirates, Khalifa bin Zayed Al Nahyan.[6] Abu Dhabi and the UAE government lent Dubai money to pay its debts. The building broke numerous height records, including its designation as the tallest building in the world.
Burj Khalifa was designed by a team led by Adrian Smith of Skidmore, Owings & Merrill, the firm that designed the Sears Tower in Chicago, a previous record holder for the world's tallest building. Hyder Consulting was supervising engineer and NORR Group Consultants supervised the architecture The design is derived from the Islamic architecture of the region, such as in the Great Mosque of Samarra. The Y-shaped tripartite floor geometry is designed to optimize residential and hotel space. A buttressed central core and wings are used to support the height of the building. Although this design was derived from Tower Palace III, the Burj Khalifa's central core houses all vertical transportation except egress stairs within each of the wings.[7] The structure also features a cladding system which is designed to withstand Dubai's hot summer temperatures. It contains a total of 57 elevators and 8 escalators.
The original Emaar developers experienced financial problems and required more funding during construction. Sheikh Khalifa, the then-ruler of the UAE, granted funding and changed the name from "Burj Dubai" to "Burj Khalifa".
Numerous complaints concern migrant workers from South Asia, the primary building labour force, who were paid low wages and sometimes had their passports confiscated.[8] Notable residents of the skyscraper include Ali Osseiran (a sanctioned alleged moneylaunderer for Hezbollah),[9] Vinod Adani (an Indian billionaire linked to moneylaundering),[10] Candido Nsue Okomo (former head of Equatorial Guinea’s scandal-plagued national oil company), Dženis Kadrić (a Bosnian cartel member), and Shwan Mohammad Almulla (who was indicted by the US in 2021 for a bribery scheme in Iraq).[11]
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