At any given time during construction of the Burj Khalifa, there were 12,000 workers involved. It took in total 22 million man hours to complete the project.
Three of the world’s largest cranes were used in its construction, each capable of lifting loads of 25 tonnes. The project took six years to complete, from excavation to delivery, about a year more than originally planned.
The building is designed to hold up to 10,000 people at a time. The water system inside it supplies almost 1 million litres of water through 100 km of pipes every single day.There are also 213 km of piping dedicated to the fire emergency system, and 34 km used to supply chilled water for the building’s air-conditioning system.
There are a total of 57 elevators and 8 escalators in the building, and a stairwell which has a total of 2,909 steps all the way to the top. All the necessary equipment for the structure’s maintenance is housed in every 30 floors, while there are in total about 4,500 keys used by the building’s security staff.
