57-storey Skyscraper In 19 Days, Fastest Construction By Chinese Company

57-storey Skyscraper In 19 Days, Fastest Construction By Chinese Company
Construction buildings kalmyket / Flickr CC BY-SA 2.0
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A Chinese construction company has built a 57-storey skyscraper in 19 working days.


Called Mini Sky City, the rectangular building made from glass and steel in the Hunan provincial capital of Changsha in central China was built by Broad Sustainable Building Co. using a modular method. Xiao Changgeng, vice president of the company, said that the process involved building three floors each day.

According to The Guardian, Chen Xiangqian, the company engineer, said, “With the traditional method, they have to build a skyscraper brick by brick, but with our method, we just need to assemble the blocks.”

The 57-storey skyscraper was erected in two phases with an interval of winter weather. With this achievement, Broad Sustainable Co. aspires to build the tallest building, towering at 220 floors, in a period of only three months.

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The time lapse video of the construction of Mini Sky City went viral on Chinese video sharing websites soon after it first featured on YouTube.

Changgeng said the building is safe and can withstand earthquakes.

Liu Peng, associate director of ARUP Beijing, an engineering consulting firm, said that the method adopted by Broad Sustainable could become a reliable way to create buildings rapidly, bringing a revolution in the construction industry.

He further said, “But it is not perfect, and it does not meet all kinds of personalized demands.

“People nowadays want more personalized architecture.”

Xiao said that the building was originally planned for 97 floors, but considering the proximity to the airport they had to contend with 57. The first 20 floors were built last year, and construction of the remaining 37 floors lasted from January 31 to February 17 this year.

The company fabricated the skyscraper’s 2,736 modules in four-and-a-half months prior to construction.

“This is definitely the fastest speed in our industry,” Xiao said.

At present, the company is awaiting approval for its 220-storey skyscraper, which they call Sky City. It will also be in Changsha.

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