If you have ever seen construction site, you would
definitely have seen machines that looks from distance something like dinosaurs,
these machines are tower cranes. Tower cranes are tall machines used to lift
heavy objects. Although, mobile cranes are also available they are useless in
the construction of tall buildings. Tower cranes are something, which cannot be
ignored in the construction of tall buildings especially in the construction of
skyscrapers. Skyscrapers are very tall buildings, like trade towers, Makah tower,
Burj Khalifa, etc.
It is impossible to lift heavy objects so high without the
use of tower cranes and hence the construction of skyscrapers is impossible
without these machines. When tower cranes were not invented or at least when they
were not common, buildings were not as high as they are today. There used to be
maximum two to three floors. But today with the help of these machines, the construction
of buildings with hundreds of floors is possible. The number of floors in Burj
Khalifa is 163, which is tallest skyscraper today. But with the help of tower
cranes along with other numerous machines, taller buildings are also in
construction.
It is very difficult to lift even the light objects to the
height of 346 meter, which is the height of an average height skyscrapers, the
height of taller skyscrapers like burj Khalifa and Makah towers can goes to five
or six hundreds of meters. Skyscrapers are the very advance building structure;
even the normal tall buildings of six, ten or more floors like typical apartment
buildings or office buildings cannot be constructed without these machines.
Hence, Tower cranes are not only required to
construct very tall buildings but are also one of the most essential equipments
for the construction of apartments and office buildings.
