Saturday 17 February 2018

Burj Khalifa

Burj Khalifa-


The Burj Khalifa known as the Burj Dubai before its inauguration, is a megatall skyscraper in DubaiUnited Arab Emirates. With a total height of 829.8 m (2,722 ft) and a roof height (excluding antenna) of 828 m (2,717 ft), the Burj Khalifa has been the tallest structure in the world since its topping out in late 2008.
Construction of the Burj Khalifa began in 2004, with the exterior completed five years later in 2009. The primary structure is reinforced concrete. The building was opened in 2010 as part of a new development called Downtown Dubai. It is designed to be the centrepiece of large-scale, mixed-use development. The decision to construct the building is reportedly based on the government's decision to diversify from an oil-based economy, and for Dubai to gain international recognition. The building was originally named Burj Dubai but was renamed in honour of the ruler of Abu Dhabi and president of the United Arab Emirates, Khalifa bin Zayed Al Nahyan;[3] 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 tower in the world.
Burj Khalifa was designed by Adrian Smith, then of Skidmore, Owings & Merrill (SOM), whose firm designed the Willis Tower and One World Trade Center. Hyder Consulting was chosen to be the supervising engineer with NORR Group Consultants International Limited chosen to supervise the architecture of the project. 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 with the exception of egress stairs within each of the wings.[10] 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.

Development-

Construction began on 6 January 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-acre) 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 Souffian AL-Jabiry 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. The tower's construction was done by the construction division of Al Ghurair Investment group.

Records

  • Tallest existi-ng structure: 828 m (2,717 ft) (previously KVLY-TV mast – 628.8 m or 2,063 ft)
  • Tallest structure ever built: 828 m (2,717 ft) (previously Warsaw radio mast – 646.38 m or 2,121 ft)
  • Tallest freestanding structure: 828 m (2,717 ft) (previously CN Tower – 553.3 m or 1,815 ft)
  • Tallest skyscraper (to top of spire): 828 m (2,717 ft) (previously Taipei 101 – 509.2 m or 1,671 ft)
  • Tallest skyscraper to top of antenna: 828 m (2,717 ft) (previously the Willis (formerly Sears) Tower – 527 m or 1,729 ft)
  • Building with most floors: 211 (including spire) previously World Trade Center – 110
  • Building with world's highest occupied floor: 584.5 m (1,918 ft)(surpassed by Shanghai Tower in 2015)
  • World's highest elevator installation (situated inside a rod at the very top of the building)
  • World's longest travel distance elevators: 504 m (1,654 ft)Highest vertical concrete pumping (for a building): 606 m (1,988 ft)
  • World's tallest structure that includes residential space
  • World's highest observation deck: 148th floor at 555 m (1,821 ft) (surpassed by Shanghai Tower in 2015)
  • World's highest outdoor observation deck: 124th floor at 452 m (1,483 ft) 
  • World's highest installation of an aluminium and glass façade: 512 m (1,680 ft)
  • World's highest nightclub: 144th floor
  • World's highest restaurant (At.mosphere): 122nd floor at 442 m (1,450 ft) (previously 360, at a height of 350 m (1,148 ft) in CN Tower)
  • World's highest New Year display of fireworks.


                                           Follow onTwitter -
                                           https://twitter.com/RushikeshKardi2

No comments:

Post a Comment