An impressive claim. We will not have to wait long before seeing if they can back this up. If they do, I would expect to see this company breaking their own record soon enough.
"According to its engineers, this will be the tallest skyscraper in the world by the end of March of 2013. Its name is Sky City, and its 2,749 feet (838 meters) distributed in 220 floors will grow in just 90 days in Changsha city, by the Xiangjiang river. Ninety days!
It's not a joke. According to the construction company, the skyscraper will be built in just 90 days at the unbelievable rate of five floors per day.
Unlike the Burj Khalifa, the tower will be mostly habitable. Its final height will be 2,749 feet high (838 meters). Compared that to the Burj's 2,719 feet (829 meters), which include the spire at the top resulting in a total of 163 floors.
The record figures don't stop there: in addition to the 90-day construction time—as opposed to the 210 days initially reported by the Chinese media—the company claims it will cost $1,500 per square meter as opposed to the Burj's $15,000 per square meter, all thanks to the prefab technology.
They also claim it will be able to sustain earthquakes of a 9.0 magnitude and be resistant to fire for "up to three hours," as well as be extremely energy efficient thanks to thermal insulation, four-panned windows and different air conditioning techniques that were already used in their previous constructions."
Watch as the same company built a 30 story building in 15 days.
Video embedded below.