7
Construction Highlights
Burj Khalifa is truly the product of international collaboration; over 60
consultants including 30 on-site contracting companies from around
the world were involved in the project.
At the peak of construction, over 12,000 professionals and skilled
workers from more than 100 countries were on site every day. The
world’s fastest high-capacity construction hoists, with a speed of up
to 6.5 ft./sec (2 m/sec or 120 m/min), were used to move men and
materials.
Over 1.59 million cubic ft. (45,000 m
3
) of
concrete, weighing more than 121,254
tons (110,000 metric tons), were used
to construct the concrete and steel
foundations, which feature 192 piles,
buried more than 164 ft. (50 m) deep.
Burj Khalifa employs a record-breaking
11.6 million cubic ft. (330,000 m
3
) of
concrete; 42,990 tons (39,000 metric
tons) of reinforced steel; 1.1 million sq.
ft. (103,000 m
2
) of glass; 166,800 sq. ft.
(15,500 m
2
) of embossed stainless steel;
and the tower took 22 million man-hours
to build. The amount of reinforced steel
used at the tower would, if laid end to
end, extend over a quarter of the way
around the world. The concrete used
is equivalent to a sidewalk 1,200 miles
(1,900 km) in length, and the weight of
110,000 elephants. The weight of the
empty building is 551,156 tons (500,000
metric tons).
The tower accomplished a world record for the highest installation of
an aluminum and glass facade, at a height of 1,679.8 ft. (512 m). The
total weight of aluminum used on Burj Khalifa is equivalent to that
of five A380 aircraft, and the total length of stainless steel ‘bull nose’
fins is 293 times the height of the Eiffel Tower in Paris.
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