In March of 2011 construction began on the Lotte World Tower in South Korea's capital Seoul. A 123 floor, 1,821-foot skyscraper. The final floor topped out in December of 2015, while the building's external construction was completed in March of 2016.

It is the tallest building in the OECD (Organisation for Economic Co-Operation & Development, which involves the world's major countries).

The first time they used it

It isn't just the height of the building that sees it stand out above the rest of the crowd (though, you should note that it's the 5th tallest building across the world). Aside from that, it's the first building to use Global Navigation Satellite Systems in order to measure the impact of later forces on the building's vertical alignment.

In addition to this the building also uses a structural behaviour monitoring system at the same time. Using the GNSS technology serves another purpose, though, allowing builders to manage the straightness of the building and reduce the period of construction.

Maintenance of your building

The Global Navigation Satellite System allows for stable management and maintenance of the building by monitoring it steadily and for the long term. The measurements capture how much the building tilts, and monitors it to ensure that the vertical geometry of its structure is maintained. Using these measurements allows the South Korean tower to be constructed with the highest rate of accuracy possible. It reflects the movement of the building.

Builders were able to review the measurement data of the structure's verticality, but through the advanced measurement technologies allowed through GNSS the straightness of it is controlled strictly.

Global Navigation Satellite Systems are also being used in order to monitor Dubai's skyscraper, the Burj Khalifa which at 163 floors, is the tallest building in the world.

Additionally, GNSS is being used to monitor New York's One World Trade Center, which is 104 floors (the Lotte Tower takes its position as 5th tallest in the world, relegating the One World Trade Center to 6th tallest).

Other existing buildings are investing in alignment systems that use GNSS and robotic station solutions. The system can be used as each floor is constructed, which monitors the structures overall vertical geometry and maintains its structural integrity.

The Lotte World Tower has gathered quite a bit of attention, with a pair of Russian urban explorers scaled the building while it was under construction. They used the stairs initially, but free climbed the crane to reach the top of the tower. They placed the video online, which has since been viewed over two million times. However, their stunt saw them banned from the building.

GNSS have become invaluable

GNSS serves an important purpose in the construction of super tall buildings across the world, however, it is not limited to skyscrapers. It can be utilised in order to maintain the structural integrity of buildings of any size. Its use in monitoring the structure during construction ensures the vertical integrity is not compromised, thus ensuring it is as structurally sound as possible.