The Messer Group has been involved in the construction of the Burj Khalifa in the Middle East, supplying welding gases for what is acknowledged as the tallest skyscraper in the world.
In the manufacture of steel constructions that are under huge ongoing dynamic stresses, such as the lifts in the Burj Khalífa building in Dubai, high-quality welds are decisive.
A total of 14 lifts, each with a lifting height of 400m and used to build the Burj Khalífa, were welded with the Ferromix welding gas from industrial gas specialist Messer.
Eight lifts transported people and material to a height of 425m, while four transfer lifts moved the material a further 250m.
Construction of the building was also supported by ‘jumping’ lifts, with individual cages and a load-bearing capacity of up to two tons. The height of these lifts grew with the building. With each 80-100m of building height, the lifts were dismantled and assembled one segment higher. These lifts were used for the extensive transfer of materials between the various floors.
Because of building sway, when manufacturing the lifts major attention was given to the material and how it was finally processed – in particular the welding process. The lifts were constructed entirely in the Czech Republic and delivered to Dubai – and currently hold the altitude world record.
At their weld joints, the Ferromix C18 shielding gas mixture, made of 82% argon and 18% carbon dioxide, demonstrated its excellent mechanical and optical properties such as a very fine and low-spatter weld. The Ferromix fast welding speed makes it extremely suitable for, among other things, tube steel, structural steel and fine-grained steel.
The Burj Khalífa was opened on 4th January 2010 and at a height of 828m and 189 storeys, is acknowledged as the tallest skyscraper in the world. During its construction period of four years, several million tons of material were transported in the lifts.