Sky City (Changsha)
| Sky City | |
|---|---|
| 天空城市 | |
Artist's impression of Sky City
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| General information | |
| Status | Never built |
| Type | Mixed-use |
| Architectural style | Supertall skyscraper |
| Location | Changsha, Hunan, China |
| Coordinates | 28°19′14″N 112°53′51″E / 28.32056°N 112.89750°ECoordinates: 28°19′14″N 112°53′51″E / 28.32056°N 112.89750°E |
| Estimated completion | TBD |
| Cost |
$1.46 billion 9 billion Chinese yuan |
| Owner | Broad Sustainable Building |
| Management | Broad Sustainable Building |
| Height | |
| Architectural | 838 m (2,749 ft) |
| Tip | 838 m (2,749 ft) |
| Roof | 727 m (2,385 ft) |
| Top floor | 733.5 m (2,406 ft) |
| Observatory | 733.5 m (2,406 ft) |
| Technical details | |
| Structural system | Prefabricated modular |
| Floor count | 220 (6 below ground) |
| Floor area | 1,050,000 m2 (11,302,106 sq ft) |
| Lifts/elevators | 93 |
| Design and construction | |
| Developer | Broad Sustainable Building |
| Main contractor | China State Construction Engineering |
| References | |
Sky City (Chinese: 天空城市; pinyin: tiānkōng chéngshì), or Sky City One, was an 838-metre-tall (2,749 ft) planned skyscraper in the city of Changsha, Hunan in south-central China. The prospective builders, Broad Sustainable Building, estimated it would take just 90 days to construct. Including the 120 days required for prefabrication before on-site work commences, the sum of time needed is 210 days. Pre-construction activities were halted in August 2013 after government regulators required additional approvals.
Broad Sustainable Building had intended to build a 666-metre (2,185 ft) skyscraper, but the local government wanted the world's tallest building, hence the current plans. The company has constructed 20 buildings in China using the same method and has several franchise partners globally. It has a planned helipad at a height of 739.8 m (2,427 ft) above ground.
As of May 2016[update], plans for the building's construction are stalled, and the foundations for the planned building are being used as a fish farm.
On June 8, 2016 it was reported by the People's Daily that the project had been dropped due to protests over environmental damage to the Daze Lake wetland. The People's Daily said, "Central China's Hunan province finally announced a halt on its ambitious plan to build the world's tallest tower within one part of its rare wetland area. The Daze Lake wetland is the location where the world's next tallest tower was originally scheduled to be built. This wetland is now listed as one of the 20 waters to be permanently protected and will follow non-construction zone policies. It is a pristine wetland hailed as the last wetland in Changsha where many rare bird species take habitat. Shelter of these birds would be largely disrupted by the building of this tower." However Broad Group declared: "We will definitely build the tower".
If it is built as planned, Sky City would be the tallest building in the world, until the Jeddah Tower in Jeddah is complete (currently under construction, planned to be opened in 2019), with 202 floors. The construction plan calls for it to be built from pre-fabricated units constructed on site in an unprecedentedly short period of 90 days. BSB's plan is to assemble 95% of the building in its factory before any excavation takes place at the construction site. The fabrication process is due to take around six months before the actual construction begins.
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Wikipedia