Burj Khalifa
Burj Khalifa
Burj Khalifa
                                                          Burj Khalifa
                                                                 ﺑﺮﺝ ﺧﻠﻴﻔﺔ
Record height
General information
Status Complete
Type Mixed-use
               Coordinates                                        [1]
                                    25°11′49.7″N 55°16′26.8″E        Coordinates: 25°11′49.7″N 55°16′26.8″E [1]
               Construction started January 2004
Completed 2010
Height
Technical details
                  Main contractor       Samsung Engineering and Construction Company, Besix and Arabtec
                                        Supervision Consultant Engineer & Architect of Record Hyder Consulting
                                        Construction Project Manager Turner Construction
                                        Grocon
                                        Planning Bauer AG and Middle East Foundations
                                        Lift contractor Otis
                                        VT consultant Lerch Bates
Website
                                                                                  [2]
                                                             www.burjkhalifa.ae
    Burj Khalifa (Arabic: ﺑﺮﺝ ﺧﻠﻴﻔﺔ, "Khalifa Tower"), 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-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 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.
    Conception
    Burj Khalifa was designed to be the centerpiece of a large-scale, mixed-use development that would include 30,000
    homes, nine hotels (including The Address Downtown Dubai), 3 hectares (7.4 acres) of parkland, at least 19
    residential towers, the Dubai Mall, and the 12-hectare (30-acre) man-made Burj Khalifa Lake.
    The building has returned the location of Earth's tallest freestanding structure to the Middle East, where the Great
    Pyramid of Giza had claimed this achievement for almost four millennia before being surpassed in 1311 by Lincoln
    Cathedral in England.
    The decision to build Burj Khalifa is reportedly based on the government's decision to diversify from an oil based
    economy to one that is service and tourism based. According to officials, it is necessary for projects like Burj Khalifa
    to be built in the city to garner more international recognition, and hence investment. "He (Sheikh Mohammed bin
    Rashid Al Maktoum) wanted to put Dubai on the map with something really sensational," said Jacqui Josephson, a
    tourism and VIP delegations executive at Nakheel Properties.
Burj Khalifa                                                                                                                      3
Height
    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 m or
        1,729 ft)
    •   Building with most floors: 163 (previously World Trade Center – 110)
    •   Building with world's highest occupied floor
    •   World's highest elevator installation (situated inside a rod at the very top of the building)
    •   World's longest travel distance elevators: 504m (1,654 ft)
    •   Highest vertical concrete pumping (for a building): 606 m (1,988 ft)[3]
    •   World's tallest structure that includes residential space
    • World's second highest outdoor observation deck: 124th floor at 452 m (1,483 ft) When it first opened, the
      observation deck was the highest outdoor observation deck in the World, but it has since been surpassed by Cloud
      Top 488 on top of Canton Tower.
    • 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.
    • World's second highest swimming pool: 76th floor (world's highest swimming pool is located on 118th floor of
      Ritz-Carlton Hotel at International Commerce Centre, Hong Kong).
    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.[4]
Burj Khalifa                                                                                                               4
    Delay
    Emaar Properties announced on 9 June 2008 that construction of Burj Khalifa was delayed by upgraded finishes and
    would be completed only in September 2009. An Emaar spokesperson said "The luxury finishes that were decided
    on in 2004, when the tower was initially conceptualized, is now being replaced by upgraded finishes. The design of
    the apartments has also been enhanced to make them more aesthetically attractive and functionally superior." A
    revised completion date of 2 December 2009 was then announced. However, Burj Khalifa was opened on 4 January
    2010, more than a month later.
    Subsequent to the original design by Skidmore, Owings and Merrill, Emaar Properties chose Hyder Consulting to be
    the supervising engineer with NORR Group Consultants International Limited chosen to supervise the architecture
    of the project. Hyder was selected for its expertise in structural and MEP (mechanical, electrical and plumbing)
    engineering. Hyder Consulting's role was to supervise construction, certify SOM's design, and be the engineer and
    architect of record to the UAE authorities. NORR's role was the supervision of all architectural components
    including on site supervision during construction and design of a 6-storey addition to the Office Annex Building for
    architectural documentation. NORR was also responsible for the architectural integration drawings for the Armani
    Hotel included in the Tower. Emaar Properties also engaged GHD, an international multidisciplinary consulting
    firm, to act as an independent verification and testing authority for concrete and steelwork.
Burj Khalifa                                                                                                                    5
    Plumbing systems
    The Burj Khalifa's water system supplies an average of 946,000 L (250,000 US gal) of water per day through
    100 km (62 mi) of pipes. An additional 213 km (132 mi) of piping serves the fire emergency system, and 34 km
    (21 mi) supplies chilled water for the air conditioning system. The waste water system uses gravity to discharge
    water from plumbing fixtures, floor drains, mechanical equipment and storm water, to the city municipal sewer.
    Air conditioning
    The air conditioning system draws air from the upper floors where the air is cooler and cleaner than on the ground.
    At peak cooling times, the tower's cooling is equivalent to that provided by 13,000 t (29,000,000 lb) of melting ice in
    one day. The condensate collection system, which uses the hot and humid outside air, combined with the cooling
    requirements of the building, results in a significant amount of condensation of moisture from the air. The condensed
    water is collected and drained into a holding tank located in the basement car park; this water is then pumped into the
    site irrigation system for use on the Burj Khalifa park.
    Window cleaning
    To wash the 24,348 windows, totaling 120,000 m2 (1,290,000 sq ft) of glass, a horizontal track has been installed on
    the exterior of Burj Khalifa at levels 40, 73, and 109. Each track holds a 1,500 kg (3,300 lb) bucket machine which
    moves horizontally and then vertically using heavy cables. Above level 109, up to tier 27 traditional cradles from
    davits are used. The top of the spire, however, is reserved for specialist window cleaners, who brave the heights and
    high winds dangling by ropes to clean and inspect the top of the pinnacle. Under normal conditions, when all
    building maintenance units will be operational, it will take 36 workers three to four months to clean the entire
    exterior façade.
    Unmanned machines will clean the top 27 additional tiers and the glass spire. The cleaning system was developed in
    Melbourne, Australia at a cost of A$8 million. The contract for building the state-of-the-art machines was won by
    Australian company Cox Gomyl.
Burj Khalifa                                                                                                                 7
Features
    Observation deck
    An outdoor observation deck, named At the Top, opened on 5 January
    2010 on the 124th floor. It is the third-highest observation deck in the
    world and the second-highest outdoor observation deck in the world, at
    452 m (1,483 ft). The observation deck also features the Behold
    Telescope, an augmented reality device developed by gsmprjct° of
    Montréal, which allows visitors to view the surrounding landscape in
    real-time, and to view previously saved images such as those taken at
                                                                                       View from the observation deck
    different times of day or under different weather conditions. To
    manage the daily rush of sightseers, visitors are able to purchase tickets
    in advance for a specific date and time and at a 75% discount over tickets purchased on the spot.
    On 8 February 2010, the observation deck was closed to the public after power-supply problems caused an elevator
    to become stuck between floors, trapping a group of tourists for 45 minutes. Despite rumours of the observation deck
    reopening for St. Valentine's Day (14 February), it remained closed until 4 April 2010.
    The plants and the shrubbery will be watered by the buildings's condensation collection system that uses water from
    the cooling system. The system will provide 68,000,000 L (15,000,000 imp gal) annually. WET Enterprises, who
    also developed the Dubai Fountain, developed the park's six water features.
    Floor plans
    The following is a breakdown of floors.
Floors Use
136–138 Mechanical
109–110 Mechanical
77–108 Residential
76 Sky lobby
73–75 Mechanical
       44–72                Residential
Burj Khalifa                                                                                                                    9
43 Sky lobby
40–42 Mechanical
19–37 Residential
17–18 Mechanical
    Construction
    The tower was constructed by Samsung Engineering & Construction of
    South Korea, which also did work on the Petronas Twin Towers and
    Taipei 101. Samsung Engineering & Construction built the tower in a
    joint venture with Besix from Belgium and Arabtec from UAE. Turner
    is the Project Manager on the main construction contract.
    Under UAE law, the Contractor and the Engineer of Record, Hyder
    Consulting, is jointly and severally liable for the performance of Burj
    Khalifa.
    The primary structure is reinforced concrete. Putzmeister created a                     thumbtime=0:23
    new, super high-pressure trailer concrete pump, the BSA 14000
    SHP-D, for this project. Over 45,000 m3 (58,900 cu yd) of concrete,
    weighing more than 110,000 tonnes (120,000 short tons; 110,000 long
    tons) were used to construct the concrete and steel foundation, which
    features 192 piles; each pile is 1.5 metre diameter x 43 m long, buried
    more than 50 m (164 ft) deep. Burj Khalifa's construction used
    330,000 m3 (431,600 cu yd) of concrete and 55,000 tonnes (61,000
    short tons; 54,000 long tons) of steel rebar, and construction took
    22 million man-hours. A high density, low permeability concrete was
    used in the foundations of Burj Khalifa. A cathodic protection system
    under the mat is used to minimize any detrimental effects from
    corrosive chemicals in local ground water. In May 2008 Putzmeister
    pumped concrete to a then world record delivery height of 606 m
    (1,988 ft), the 156th floor. Three tower cranes were used during
    construction of the uppermost levels, each capable of lifting a 25-tonne             Aerial closeup of Burj Khalifa under
    load. The remaining structure above is constructed of lighter steel.                     construction in March 2008
    Burj Khalifa is highly compartmentalised. Pressurized, air-conditioned refuge floors are located approximately every
    35 floors where people can shelter on their long walk down to safety in case of an emergency or fire.
    Special mixes of concrete are made to withstand the extreme pressures of the massive building weight; as is typical
    with reinforced concrete construction, each batch of concrete used was tested to ensure it could withstand certain
    pressures. CTLGroup, working for SOM, conducted the creep and shrinkage testing critical for the structural
    analysis of the building.
Burj Khalifa                                                                                                              10
    The consistency of the concrete used in the project was essential. It was difficult to create a concrete that could
    withstand both the thousands of tonnes bearing down on it and Persian Gulf temperatures that can reach 50 °C
    (122 °F). To combat this problem, the concrete was not poured during the day. Instead, during the summer months
    ice was added to the mixture and it was poured at night when the air is cooler and the humidity is higher. A cooler
    concrete mixture cures evenly throughout and is therefore less likely to set too quickly and crack. Any significant
    cracks could have put the entire project in jeopardy.
    The unique design and engineering challenges of building Burj Khalifa have been featured in a number of television
    documentaries, including the Big, Bigger, Biggest series on the National Geographic and Five channels, and the
    Mega Builders series on the Discovery Channel.
    Milestones
    • January 2004: Excavation
      commences.
    • February 2004: Piling starts.
    • 21 September 2004: Emaar
      contractors begin construction.
    • March 2005: Structure of Burj
      Khalifa starts rising.
    • June 2006: Level 50 is reached.                             Burj Khalifa and skyline of Dubai, 2010
    • February 2007: Surpasses the Sears
      Tower as the building with the most floors.
    • 13 May 2007: Sets record for vertical concrete pumping on any building at 452 m (1,483 ft), surpassing the
      449.2 m (1,474 ft) to which concrete was pumped during the construction of Taipei 101, while Burj Khalifa
      reached the 130th floor.
    • 21 July 2007: Surpasses Taipei 101, whose height of 509.2 m (1,671 ft) made it the world's tallest building, and
      level 141 reached.
    • 12 August 2007: Surpasses the Sears Tower antenna, which stands 527.3 m (1,730 ft).
    • 12 September 2007: At 555.3 m (1,822 ft), becomes the world's tallest freestanding structure, surpassing the CN
      Tower in Toronto, and level 150 reached.
    • 7 April 2008: At 629 m (2,064 ft), surpasses the KVLY-TV Mast to become the tallest man-made structure, level
      160 reached.
    • 17 June 2008: Emaar announces that Burj Khalifa's height is over 636 m (2,087 ft) and that its final height will
      not be given until it is completed in September 2009.
    • 1 September 2008: Height tops 688 m (2,257 ft), making it the tallest man-made structure ever built, surpassing
      the previous record-holder, the Warsaw Radio Mast in Konstantynów, Poland.
    • 17 January 2009: Topped out at 829.8 m (2,722 ft).
    • 1 October 2009: Emaar announces that the exterior of the building is completed.
    • 4 January 2010: Burj Khalifa's official launch ceremony is held and Burj Khalifa is opened. Burj Dubai renamed
      Burj Khalifa in honour of the President of the UAE and ruler of Abu Dhabi, Sheikh Khalifa bin Zayed al Nahyan.
    • 10 March 2010 Council on Tall Buildings and Urban Habitat (CTBUH) certifies Burj Khalifa as world's tallest
      building.
Burj Khalifa                                                                                                                11
    The event began with a short film which depicted the story of Dubai and the
    evolution of Burj Khalifa. The displays of sound, light, water and fireworks
    followed. The portion of the show consisting of the various pyrotechnic, lighting,
                                                                                            The opening ceremony of Burj
    water and sound effects was divided into three. The first part was primarily a
                                                                                                      Khalifa
    light and sound show, which took as its theme the link between desert flowers
    and the new tower, and was co-ordinated with the Dubai Fountain and
    pyrotechnics. The second portion, called 'Heart Beat', represented the construction of the tower in a dynamic light
    show with the help of 300 projectors which generated a shadow-like image of the tower. In the third act, sky tracers
    and space cannons enveloped the tower in a halo of white light, which expanded as the lighting rig on the spire
    activated.
    The ceremony was relayed live on a giant screen on Burj Park Island, as well as several television screens placed
    across the Downtown Dubai development. Hundreds of media outlets from around the world reported live from the
    scene. In addition to the media presence, 6,000 guests were expected.
Burj Khalifa                                                                                                                    12
Reception
    Awards
    In June 2010, Burj Khalifa was the recipient of the 2010 Best Tall Building Middle East & Africa award by the
    Council on Tall Buildings and Urban Habitat. On 28 September 2010 Burj Khalifa won the award for best project of
    year at the Middle East Architect Awards 2010.
    The Council on Tall Buildings and Urban Habitat bestowed a new award for Burj Khalifa at its annual “Best Tall
    Buildings Awards Ceremony” on 25 October 2010 when Burj Khalifa honored as first recipient of CTBUH’s new
    Tall Building “Global Icon” Award. According to CTBUH the new “Global Icon” award recognizes those very
    special supertall skyscrapers that make a profound impact, not only on the local or regional context, but on the genre
    of tall buildings globally. Which is innovative in planning, design and execution, the building must have influenced
    and reshaped the field of tall building architecture, engineering, and urban planning. It is intended that the award will
    only be conferred on an occasional basis, when merited by an exceptional project perhaps every ten or fifteen years.
    CTBUH Awards Chair Gordon Gill, of Adrian Smith + Gordon Gill Architecture said:
          "There was discussion amongst members of the jury that the existing ‘Best Tall Building of the Year’ award
          was not really appropriate for the Burj Khalifa. We are talking about a building here that has changed the
          landscape of what is possible in architecture a building that became internationally recognized as an icon long
          before it was even completed. ‘Building of the Century’ was thought a more appropriate title for it."
    Beside these awards, Burj Khalifa was the recipient of following awards.
    • 2012 • Award of Merit for World Voices Sculpture, Burj Khalifa Lobby from Structural Engineers Association of
      Illinois, Chicago.
    • 2011 • Interior Architecture Award, Certificate of Merit from AIA - Chicago Chapter.
    • 2011 • Distinguished Building Award, Citation of Merit from AIA - Chicago Chapter.
    • 2011 • Interior Architecture Award: Special Recognition from AIA - Chicago Chapter.
    • 2011 • Design Excellence Award: Special Function Room.
    • 2011 • Excellence in Engineering from ASHRAE - Illinois Chapter.
    • 2011 • Outstanding Structure Award from International Association for Bridge and Structural Engineering.
    • 2011 • Decade of Design, Presidential Commendation in Corporate Space Small from International Interior
      Design Association (IIDA).
    • 2011 • Decade of Design • Best of Category/Mixed Use Buildings from International Interior Design Association
      (IIDA).
    • 2011 • GCC Technical Building Project of the Year from MEED.
    • 2011 • Project of the Year from MEED.
    • 2010 • International Architecture Award.
    • 2010 • Arab Achievement Award 2010: Best Architecture Project from Arab Investment Summit.
    • 2010 • Architecture Award (Mixed Use) Dubai from Arabian Property Awards.
    • 2010 • Architecture Award (Mixed Use) Arabian Region from Arabian Property Awards.
    • 2010 • International Architecture Award from Chicago Athenaeum.
    • 2010 • American Architecture Award from Chicago Athenaeum.
    • 2010 • Commercial / Mixed Use Built from Cityscape.
    • 2010 • Best Mixed Use Built Development in Cityscape Abu Dhabi.
    • 2010 • Skyscraper Award: Silver Medal from Emporis.
    • 2010 • Award for Commercial or Retail Structure from Institution of Structural Engineers.
    • 2010 • International Architecture Award (Mixed Use) from International Commercial Property Awards.
    • 2010 • Special Recognition for Technological Advancement from International Highrise Awards.
    • 2010 • Best Structural Design of the Year from LEAF Award.
Burj Khalifa                                                                                                                     13
    • 2010 • International Projects Category: Outstanding Project from National Council of Structural Engineers
      Associations.
    • 2010 • Best of What's New from Popular Science Magazine.
    • 2010 • Spark Awards, Silver Award.
    • 2010 • Excellence in Structural Engineering: Most Innovative Structure from Structural Engineers Association of
      Illinois.
    BASE jumping
    The building has been used by several experienced BASE jumpers for both authorized and unauthorized BASE
    jumping:
    • In May 2008, Hervé Le Gallou and David McDonnell, dressed as engineers, illegally infiltrated Burj Khalifa
      (around 650 m at the time), and jumped off a balcony situated a couple of floors below the 160th floor.[6]
    • On 8 January 2010, with permission of the authorities, Nasr Al Niyadi and Omar Al Hegelan, from the Emirates
      Aviation Society, broke the world record for the highest BASE jump from a building after they leapt from a
      crane-suspended platform attached to the 160th floor at 672 m (2,205 ft). The two men descended the vertical
      drop at a speed of up to 220 km/h (140 mph), with enough time to open their parachutes 10 seconds into the
      90-second jump.[7]
    Climbing
    On 28 March 2011, Alain "Spiderman" Robert scaled the outside of Burj Khalifa. The climb to the top of the spire
    took six hours. To comply with UAE safety laws, Robert, who usually climbs in free solo style, took the unusual step
    of using a rope and harness for the climb.
    Suicide
    Within 17 months of the building's official opening, a man described as "an Asian in his mid-30s" who worked at
    one of the companies in the tower, committed suicide on 10 May 2011 by jumping from the 147th floor. He fell 39
    floors, landing on a deck on the 108th floor. Dubai police confirmed the act as a suicide, reporting that "We also
    came to know that the man decided to commit suicide as his company refused to grant leave."
    In popular culture
    During the summer of 2009, while Burj Khalifa was still under construction, contestants from The Amazing Race 15
    visited the 120th floor to collect a clue. The helipad of the building was later featured as the pitstop of the fourth leg
    of the race in the second season of the reality competition series The Amazing Race Australia.
    • A substantial part of the plot of Mission: Impossible – Ghost Protocol, the fourth of the Mission: Impossible film
      series, takes place in and around the Burj Khalifa and involves Tom Cruise's character Ethan Hunt having to scale
      a large section of the exterior using high-tech adhesive gloves in order to access and hack the building's security
      systems. Filming included stuntwork on the building's exterior with some scenes shot in the IMAX format.
    • Some scenes of the 2012 Malayalam language movie, Diamond Necklace, directed by Lal Jose were shot in Burj
      Khalifa. It is the first Indian film featuring this building.
    • The building features prominently in the 2012 video game Spec Ops: The Line developed by Yager Development
      and published by 2K Games. It is referred to only as "the tallest building in Dubai" during the course of the story
      and is not a particularly close likeness of the real structure.
    • In the History Channel show Life After People episode "Home Wrecked Homes", Burj Khalifa is shown to have
      been stripped of most of its glass facade due to high-speed desert winds, before it collapses from corrosion of its
      base, 250 years after people.
Burj Khalifa                                                                                                                14
    • The music video for Imran Khan's song Satisfya had multiple scenes filmed at the Burj Khalifa.
    • In the 2013 Disney film Planes, an animation of the Dubai skyline is shown,as Dusty flies around the tower.
    • In one of the first episodes of The Thundermans, it is shown when Hank and Barb stay in a fancy hotel near the
      tower.
    Fireworks displays
    • 2010-2011, fireworks accompanied by lasers and lights were displayed from the Burj Khalifa, making it the
      highest New Year fireworks display in the world. The theme of the 2011 New Year fireworks was the "New Year
      Gala", a tribute to the spirit of Dubai, which is home to over 200 nationalities. The display also marked the first
      anniversary of Burj Khalifa.
    • 2011-2012, Burj Khalifa was fully illuminated in white, red and green colors, drawing on the colors of the UAE
      national flag, through the fireworks display. The celebrations were also a salute to the nation.
    • 2012-2013, The fireworks display on Burj Khalifa, in a blaze of light and color, the fireworks engulfed the tower,
      synchronized and choreographed to a live performance by the Prague Philharmonic Orchestra. A window table
      for the New Year event was also arranged on the 122nd floor of the building at Atmosphere restaurant, at cost of
      16,000 dirhams (4,300 dollars) per person.
    • On 27 November 2013 Burj Khalifa was illuminated with lights and fireworks display following announcement
      of Dubai as winning city to host World Expo 2020.
    • 2013-2014, The Burj Khalifa and surrounding areas were the site of a record-breaking fireworks display as part of
      the UAE's New Year celebrations, with a reported 400 thousand fireworks being set off continuously for six
      minutes.
    Labour controversy
    Burj Khalifa was built primarily by workers from South Asia. On 17 June 2008, there were 7,500 skilled workers
    employed at the construction site. Press reports indicated in 2006 that skilled carpenters at the site earned £4.34 a
    day, and labourers earned £2.84. According to a BBC investigation and a Human Rights Watch report, the workers
    were housed in abysmal conditions, and worked long hours for low pay. During the construction of Burj Khalifa,
    only one construction-related death was reported. However, workplace injuries and fatalities in the UAE are "poorly
    documented".
    On 21 March 2006, about 2,500 workers, who were upset over buses that were delayed for the end of their shifts,
    protested, damaged cars, offices, computers, and construction equipment. A Dubai Interior Ministry official said the
    rioters caused almost £500,000 in damage. Most of the workers involved in the riot returned the following day but
    refused to work.
Burj Khalifa                      15
Gallery
1 February 2006
29 August 2006
                  21 March 2007
Burj Khalifa                      16
4 December 2007
               10 December 2007
Burj Khalifa                                                                                                                      17
11 March 2008
31 March 2012
    References
    [1] http:/ / tools. wmflabs. org/ geohack/ geohack. php?pagename=Burj_Khalifa& params=25_11_49. 7_N_55_16_26.
        8_E_type:landmark_region:AE-DU
    [2] http:/ / www. burjkhalifa. ae
    [3] Burj Khalifa -- Conquering the World's Tallest Building (http:/ / www. forconstructionpros. com/ article/ 10293208/
        burj-khalifa-conquering-the-worlds-tallest-building)
    [4] Cityscape, 18 September 2005. Retrieved on 5 May 2006.
    [5] SOM rendering (http:/ / img169. imageshack. us/ img169/ 4228/ picture1po0. png)
    [6] Video documentary about the BASE jump from the Burj Dubai tower.
    [7] Highest base jump-Nasr Al Niyadi and Omar Al Hegelan sets world record (http:/ / www. worldrecordsacademy. org/ sports/
        highest_base_jump_Nasr_Al_Niyadi_and_Omar_Al_Hegelan_sets_world_record_101495. htm). Retrieved 9 January 2010.
    External links
    • Official website (http://www.burjdubai.com)
    • Views (http://www.telegraph.co.uk/news/worldnews/middleeast/dubai/9831964/
      360-degree-view-from-the-worlds-tallest-building-in-Dubai.html)
    • Skidmore, Owings & Merrill LLP (http://www.som.com/), architects
    • Burj Khalifa (http://skyscrapercenter.com/dubai/burj-khalifa/) on CTBUH Skyscraper Center
    • Emporis page on Burj Khalifa (http://www.emporis.com/en/wm/bu/?id=burjdubai-dubai-unitedarabemirates)
    • World's Tallest Building (By Far) (http://www.life.com/image/first/in-gallery/38222/
      worlds-tallest-building-by-far) – slideshow by Life magazine
    • The Burj Dubai Tower Wind Engineering (http://www.structuremag.org/archives/2006/June-2006/
      SF-Wind-Engineering-Burj-Dubai-Tower-June-06.pdf) PDF (597 KB); Wind Tunnel Testing (http://www.
Burj Khalifa                                                                                                                 18
        structuremag.org/archives/2006/Nov-2006/F-Burj-Dubai-Tower-Irwin-etal-Nov_06.pdf) PDF (620 KB)
        (Irwin et al., Structure magazine, June and November 2006)
    •   Wind and Other Studies (http://www.rwdi.com/project_profiles/burj_dubai/) performed by RWDI
    •   BBC reports: Burj Khalifa opening (http://news.bbc.co.uk/1/hi/world/middle_east/8438857.stm), with
        video and links; Maintaining the world's tallest building (http://www.bbc.co.uk/news/world-20526216)
    •   World's Tallest Tower Opens (http://www.thefirstpost.co.uk/
        46384,in-pictures,news-in-pictures,in-pictures-worlds-tallest-tower-burj-khalifa-dubai-opens-skyscraper-fireworks)
        – slideshow by The First Post
    •   A 45 Gigapixel zoom and pannable photo from Gigapan (http://www.gigapan.org/gigapans/48492/)
                                                           Records
                               Preceded by         World's tallest structure ever built   Incumbent
                          Warsaw Radio Mast                  2008 – present
                          646.38 m (2,120.67 ft)
                               Preceded by              World's tallest structure
                             KVLY-TV mast                   2008 – present
                            628.8 m (2,063 ft)
                               Preceded by            World's tallest free-standing
                               CN Tower                        structure
                          553.33 m (1,815.39 ft)            2007 – present
                               Preceded by              World's tallest building
                               Taipei 101                  2010 – present
                           509.2 m (1,670.6 ft)
                              Preceded by            Building with the most floors
                              Willis Tower                  2007 – present
                               108 floors
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