How did the world's tallest tower get built

The record of the highest tower in the world has been refreshed time and time again, when man has always exceeded the limit, especially in the construction. More and more tall buildings rise up, do you know what the tallest tower in the world is now? What kind of building story he has, what kind of engineering difficulty he has gone through? We will explore together in this period.

The world s tallest tower, the Burj al-khalifa, is also known as the Dubai tower or the bisdubai tower, the world s tallest building and man-made structure. The tower is 828 meters tall, with a total floor of 162 floors, costing $1.5 billion, and the building itself costs at least $1 billion. It also excludes the cost of building large shopping malls, lakes and smaller towers.

The tower uses 330,000 cubic meters of concrete, 62,000 tons of reinforced steel and 142,000 square meters of glass. In order to build the Khalifa, about 4,000 workers and 100 cranes were deployed to place the concrete vertical pump over 606 metres, Breaking the 492-meter record when the Shanghai global financial center building was built.

There are 56 lifts with a top speed of 17.4 m/s and a double deck of sightseeing lifts with a maximum capacity of 42 people each. Khalifa, was founded in 2004, local time on January 4, 2010 night, dubai's sheik Mohammed bin rashid's o uncover is known as the "world first high-rise" "dubai tower" the curtain on the monument, declare formal completion of the building, and changed its name to "khalifa".