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World' tallest building Burj Dubai Facts and Figures

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tallest building dubai facts

Mechaical Systems

Chilled Water Cooling System
At the Peak cooling times, the tower will require approximately 10,000 tons of

cooling per hour, which is equivalent to the capacity provided by 10,000 tons(22.4

million lbs, or 10.2 million kg) of melting ice in one day.

Water Supply System

The Tower's water system will supply an average of about 946,000 liters (250,000

gallons) of water per day.

Electrical System

The tower's peak electricity demand is estimated at 36 MVA, equivalent to roughly

360,000 100-qatt light bulbs all operating at the same time
Condensate Collection System
Hot and humid outside air, combines with cooling requirements of the building, will

result in a significant amount of condensation of moisture from the air. This

condensed water will be collected and drained in a seperate piping system down to a

holding tank located i the basement car park. This water will be pumped into the

site irrigation system for use on the tower's landscape plantings. this system will

provide about 15 million gallons of supplemental water per year, equivalent to

nearly 20 olympic-sized swimming pools.

Observatory Elevators

Double deck cabs have a capacity for 21 persons on each deck and will have the

world's longest travel distance from lowest to highest stop. These elevators will be

worlds fastedt at 18 m/sec (40 mph)

Building Service/Fire Elevator

The building service/fireman's elevator will have a capacity of 5500 kg and will be

the world's tallest service elevator.

Spire Maintenance Elevator

The Burj Dubai will contain the world's highest elevator installation.

Controlled Evacuation

The Burj Dubai will be the first mega-high rise in which certain elevators will be

programmed to permit controlled evacuation for certain fire or security events


Structural Components

Safety Considerations

The Burj Dubai has been designed and engineered to maximize occupant comfort and

safety. Extensive wind tunnel testing enables the building to resist high wind loads

while minimizing vibration.

The tower's structural system is designed for seismic conditions (similar to a

Uniform Building Code zone 2A). Reinforced concrete slabs and corridor walls provide

an inherently high resistance to fires.

Fire Safety

A major factor in designing the tower was fire safety and speed of evacuation. When

doing calculations, designers assumed the tower contained 35,000 people - although

in reality the number is likely to be less than half this. Concrete surrounds all

stairs and there is a 5,500kg capacity elevator for firefighters and building

service work." People cannot be expected to walk down 160 floors, so there are

pressurized air-conditioned refuge areas approximately every 25 floors where they

could wait safely or rest on the way down" says' architect Eric Tomich. Emaar have

looked at different scenarios and the focus is on ensuring people can leave safely

and easily.

Concrete

230,000 m^3 = (300,000 cyds) which includes tower, podium and office annex; excludes

foundations. This is equivalent to:

- A solid cube of concrete 61 meters (200 ft) on a side

- A sidewalk 1,900 kilometers long (1,200 miles) (equivalent to the distance from

Dubai, U.A.E. to Dubai, Saudi Arabia)

- The weight of 100,000 elephants

Curtain wall

Approximate areas:
Glass: 83,600 sq.m (20.7 acres)
Metal: 27,900 sq.m (6.8 acres)
Total: 111,500 sq.m (27.5 acres)
Equivalent to 17 football (soccer) fields or 25 American football fields

Concrete Mixes

Many different concrete mixtures will be used in the Burj Dubai. Various admixtures

- chemical or physical additives - are put into the basic mix to produce different

types. Certain concrete types resist heat, hydration or cracking, while some mixes

flow better in pipes so it can be pumped easily throughout the building process.

Some concrete will be pumped up to 500 meters and it must retain its properties

while it is being transported.

Rebar

31,400 metric tons, which includes tower, podium and office annex; excludes foundations
Laid end to end this would extend over a quarter of the way around the world.

Facade Maintenance

Facade Fact


The tower's primary window washing and facade maintenance system consists of three

permanently-installed, track-mounted, telescopic building maintenance machines

located in internal "garage" positions on uppermost levels. The manned cleaning

cradle for each machine is capable of serving the entire facade from its garage

level downward to level 7. Each machine's jib arm, when fully extended, will have a

reach of over 36 meters with an overall length of about 45 meters. When collapsed

into its parking position, the arms will measure about 15 meters. Under normal

conditions, with all three units in operation, it will take three to four months to

clean the entire building once.


Tower Spire

There is a separate system for the tower spire consisting of two track-mounted,

telescopic lifting arm machines; several permanently fixed outrigger arms; and

internal and external ladder access systems.
Separate systems, including a mobile aerial work platform, will access the podium

levels and entry pavilions at the base of the tower


What is Burj Dubai?

What's at Burj Dubai?

Currently under construction - Burj Dubai is set to be the most prestigeous square mile of real estate on the planet! At its centrepiece stands the iconic Burj Dubai Tower, set to be the worlds tallest building upon completion in September 2009. This mammoth structure will be mostly residential; but will also be home to the worlds highest observation deck at a vertigo inducing 517m high, as well as the worlds first 6 star rated Armarni Hotel. Shadowed by the tower itself, across a massive man made lake will be home to the 'Supertall' Lake Hotel, the worlds largest ever shopping mall, over 70 highrise buildings and a beautiful 'old town' style village. All of the following will be finished by the end of 2009.

Current records

  • Tallest structure: 818 m (2,684 ft) (previously KVLY-TV mast - 628.8 m (2,063 ft))
  • Tallest freestanding structure: 818 m (2,684 ft) (previously CN Tower - 553.3 m (1,815 ft))
  • Building with most floors: 160 (previously World Trade Center - 110)
  • World's highest elevator installation

  • Worlds fastest elevators at speed of 64 km/h or 18 m/s (59 ft/s)[23] (previously Taipei 101 – 16.83 m/s)

  • Highest vertical concrete pumping (for a building): 601 m (1,972 ft) (previously Taipei 101 - 449.2 m (1,474 ft))

  • Highest vertical concrete pumping (for any construction): 601 m (1,972 ft)[24] (previously Riva del Garda Hydroelectric Power Plant - 532 m (1,745 ft)

  • The first world's tallest structure in history to include residential space

Note: Additional records for tallest skyscraper are considered unofficial. On 20 July

2007, the head of the Council on Tall Buildings and Urban Habitat (CTBUH), Antony Wood, said "We will not classify it as a building until it is complete, clad and at least

partially open for business to avoid things like the Ryungyong [sic] project. Taipei 101 is thus officially the world's tallest until that happens."

Timeline

  • 21 September 2004: Emaar contractors begin construction

  • February 2007: Surpasses the Sears Tower (since renamed to the Willis 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.

  • 21 July 2007: Surpasses Taipei 101, whose height of 509.2 m (1,671 ft) made it the world’s tallest building.

  • 12 August 2007: Surpasses the Sears Tower (Willis Tower) antenna, which stands 527.3 m (1,730 ft).

  • 3 September 2007: Becomes the second-tallest freestanding structure, surpassing the 540 m (1,772 ft) Ostankino Tower in Moscow.

  • 12 September 2007: At 555.3 m (1,822 ft), becomes the world's tallest freestanding structure, surpassing the CN Tower in Toronto.

  • 7 April 2008: At 629 m (2,064 ft), surpasses the KVLY-TV Mast to become the tallest man-made structure.

  • 17 June 2008: Emaar announces that Burj Dubai'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 818 m (2,684 ft).

  • 1 October 2009: Emaar announces that the exterior of the building is completed.


Did You Know ?


  • Ten cranes and the world's fastest high-capacity constuction hoists - with a speed of upto 2m/sec (120m/min) are used to move men and material.

  • The building service/fireman's elevator will have a capacity of 5,500kg and will be theworld's tallest service elevator.

  • Burj Dubai will be the first mega-high rise in which certaib elevators will be programmedto permit controlled evacuation for certain fire or security events.

  • Parts of the tower reach upwards in a helical shape, with terraces, there are 26 intotal.

  • The Burj Dubai's observatory Elevators(double deck cabs) have a capacity for 21 personson each deck and will have the world's longest travel distance from lowest to highest stop.This Elevators will travel at 10 m/sec.

  • The Burj Dubai observation deck located 442 meters above groubd will be the highestpublicly accessible observation deck in the world.

  • The curtain wall of the Burj Dubai will be equivalent to 17 football(soccer) fields or 25American football fields.

  • The tower's peak electricity demand is estimated at 36 mVA, equivalent to roughly 360,000100-watt light bulbs all operating at the same time.

  • There will be 200 meters of spectacular dancing fountains at the foot of the BurjDubai.

  • When Completed, Burj Dubai will be the tallest building in the world in all fourcategories recognized by the Council on Tall Buildings and Urban Habitat(CTBUH), which compiles and ranks the world's tallest buildings.
  • The tower will house one of the first armani hotels.
  • Samsung Corporation from South Korea is the main building contractor.
  • The tip of the spire can be seen by a person 95 km (60 miles) away.
  • At the peak cooling times, the tower will require approximately 10,000 tons of cooling per hour, which is equivalent to the capacity provided by 10,000 tons (22.4 million ibs or 10.2 million kg) of melting ice in one day.

  • Burj Dubai will contain the world's highest elevator installation.
  • The amount of rebar used for the tower is 31,400 metric tons - laid end to end this would extend over a quarter of the way around the world.
  • The Burj Dubai's water system will supply an average of about 946,000 liters (250,000 gallons) of water per day.
 

Burj Khalifa (Burj Dubai) - World's Tallest Building