burj khalifa

Burj Khalifa 

INTRODUCTION:

Burj Khalifa , "Khalifa Tower", , known as Burj Dubai before its inauguration, is a megatall skyscraper in Dubai, United Arab Emirates. It is the tallest artificial structure in the world, standing at 829.8 m (2,722 ft).

Construction of Burj Khalifa began in 2004, with the exterior completed in 2009. The primary structure is reinforced concrete. The building opened in 2010, as part of the new development called Downtown Dubai. It is designed to be the centerpiece of large-scale, mixed-use development. The decision to build 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 named in honor of the ruler of Abu Dhabi and president of the United Arab Emirates, Khalifa bin Zayed Al Nahyan; Abu Dhabi and the UAE government lent Dubai money to pay its debts. The building broke numerous height records.

HISTORY:

There are unconfirmed reports of several planned height increases since its inception. Originally proposed as a virtual clone of the 560 m (1,837 ft) Grollo Tower proposal for Melbourne, Australia'sDocklands waterfront development, the tower was redesigned by Skidmore, Owings and Merrill (SOM). Marshall Strabala, an SOM architect who worked on the project until 2006, in late 2008 said that Burj Khalifa was designed to be 808 m (2,651 ft) tall.

The design architect, Adrian Smith, felt that the uppermost section of the building did not culminate elegantly with the rest of the structure, so he sought and received approval to increase it to the current height.^{[citation needed]} It has been explicitly stated that this change did not include any added floors, which is fitting with Smith's attempts to make the crown more slender.

Technical details
Floor count	154 usable floors[3][4] plus 9 maintenance levels, 46 spire levels,[5]and 2 below-ground parking levels
Floor area	309,473 m2(3,331,100 sq ft)[3]
Lifts/elevators	57 (55 single deck and 2 double deck), made byOtis Elevator Company

CURIOSITIES:

Records

·         Tallest existing structure: 829.8 m (2,722 ft) (previously KVLY-TV mast – 628.8 m or 2,063 ft)

·         Tallest structure ever built: 829.8 m (2,722 ft) (previously Warsaw radio mast – 646.38 m or 2,121 ft)

·         Tallest freestanding structure: 829.8 m (2,722 ft) (previously CN Tower – 553.3 m or 1,815 ft)

·         Tallest skyscraper (to top of spire): 829.8 m (2,722 ft) (previously Taipei 101 – 509.2 m or 1,671 ft)

·         Tallest skyscraper to top of antenna: 829.8 m (2,722 ft) (previously the Willis (formerly Sears) Tower – 527.3 m or 1,730 ft)

·         Building with most floors: 163 (previously World Trade Center – 110)^[17]

·         Building with world's highest occupied floor: 584.5 m (1,918 ft)^[18][19]

·         World's highest elevator installation (situated inside a rod at the very top of the building)^[20]

·         World's longest travel distance elevators: 504 m (1,654 ft)^[20][21]

·         Highest vertical concrete pumping (for a building): 606 m (1,988 ft)^[22]

·         World's tallest structure that includes residential space^[23]

·         World's highest observation deck: 148th floor at 555 m (1,821 ft)^[24][25]

·         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)^[26]

·         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)^[27][28]

·         World's highest New Year display of fireworks.^[29]

·         World's second highest swimming pool: 76th floor^[30] (world's highest swimming pool is located on 118th floor of Ritz-Carlton Hotel at International Commerce Centre, Hong Kong).

WEBGRAFIA:

Wikipedia and some pages relationatet with burj khalifa.