Beijing National Aquatics Center

The Beijing National Aquatics Center (simplified Chinese: 北京国家游泳中心; traditional Chinese: 北京國家游泳中心; pinyin: Běijīng guójiā yóuyǒng zhōngxīn), also officially known as the National Aquatics Center,[1] and colloquially known as the Water Cube (Chinese: 水立方), is an aquatics center at the Olympic Green in Beijing, China.

Beijing National Aquatics Centre
Water Cube
The Beijing National Aquatics Center at night
Building information
Full nameBeijing National Aquatics Center
CityBeijing, China
Coordinates39°59′30″N 116°23′03″E
Capacity4,598 (17,000 during Olympics)
Built2004–2007
Opened2008
Construction costCNY940 million
USD140 million
EUR94 million
Architect(s)PTW Architects, CSCEC, CCDI, and Arup
Main pool
Length50 m (160 ft)
Width25 m (82 ft)
Depth3 m (9.8 ft)
Lanes10

The facility was originally constructed to host the aquatics competitions at the 2008 Summer Olympics and Paralympics. During the Olympics — where it hosted diving, swimming, and synchronised swimming events — 25 world records were broken in swimming (although these were attributed primarily to controversial bodyskin swimwear that was widely-adopted by competitors during the Beijing Olympics).

In July 2010, a renovation of the facility was completed, which included the addition of a 12,000 m2 (130,000 sq ft) public water park. With Beijing awarded the 2022 Winter Olympics, part of the Water Cube was renovated in 2019 to allow the hosting of curling events.

Architecture

In July 2003 the Water Cube design was chosen from 10 proposals in an international architectural competition for the aquatic center project.[2] The Water Cube was specially designed and built by a consortium made up of PTW Architects (an Australian architecture firm),[3] Arup international engineering group, CSCEC (China State Construction Engineering Corporation), and CCDI (China Construction Design International) of Shanghai.[4] The Water Cube's design was initiated by a team effort: the Chinese partners felt a square was more symbolic to Chinese culture and its relationship to the Bird's Nest stadium while the Sydney-based partners came up with the idea of covering the 'cube' with bubbles, symbolising water. Contextually, the Cube symbolises Earth whilst the circle (represented by the elliptic stadium) represents heaven, a common motif in ancient Chinese art.

Comprising a steel space frame, it is the largest ETFE-clad structure in the world with over 100,000 m² of ETFE pillows that are only 0.2 mm (1/125 of an inch) in total thickness.[5] The ETFE cladding, supplied and installed by the firm Vector Foiltec, allows more light and heat penetration than traditional glass, resulting in a 30% decrease in energy costs.[5] This choice was made in view of Beijing's goal of presenting a fully "green" Olympic Games, with zero net growth in total carbon emissions.[6] Likewise, the venue was also designed to "capture and recycle 80% of the water falling on the roof or lost from the pools."[7]

The outer wall is based on the Weaire–Phelan structure, a structure devised from the natural pattern of bubbles in soap lather.[8] In the true Weaire–Phelan structure the edge of each cell is curved in order to maintain 109.5 degree angles at each vertex (satisfying Plateau's rules), but of course as a structural support system each beam was required to be straight so as to better resist axial compression. The complex Weaire–Phelan pattern was developed by slicing through bubbles in soap foam, resulting in more irregular, organic patterns than foam bubble structures proposed earlier by the scientist Kelvin.[4] Using the Weaire–Phelan geometry, the Water Cube's exterior cladding is made of 4,000 ETFE bubbles, some as large as 9.14 metres (30.0 ft) across, with seven different sizes for the roof and 15 for the walls.[9]

The structure had a capacity of 17,000 during the games.[5] It also has a total land surface of 65,000 square meters and covers a total of 32,000 square metres (7.9 acres).[5] Although called the Water Cube, the aquatic center is really a rectangular box (cuboid) 178 metres (584 ft) square and 31 metres (102 ft) high.[9] The building's popularity has spawned many copycat structures throughout China.[10] For example, there is one-to-one copy of the facade near the ferry terminal in Macau – the Casino Oceanus by Paul Steelman.[11]

  • Water Cube The National Aquatics Center in Chaoyang
  • The National Aquatics Center under construction, with the Beijing National Stadium in the background
  • Inside the Water Cube on August 14, 2008
  • The Beijing National Aquatics Center while under construction

2008 Summer Olympics
Further information: 2008 Summer Olympics

The Aquatics Center hosted the swimming, diving, and synchronized swimming events during the Olympics. Water polo was originally planned to be hosted in the venue but was moved to the Ying Tung Natatorium.

Many people believed the Water Cube to be the fastest Olympic pool in the world.[12] Over the course of the Games, 25 world records were broken by athletes at the Water Cube, although all but two of them were achieved by swimmers wearing the controversial LZR Racer bodyskin (which led to restrictions on the use of such suits being implemented by FINA in 2010).[13][14]

Post-Olympics usage and legacy
Indoor water park

After the Olympics, the Water Cube was opened to the public on select days of the week beginning in June 2009, and was also used as the site for a production of Swan Lake among other shows. On 19 October 2009, the Water Cube was closed to the public to begin a renovation of a portion of the complex into a water park, led by Canadian design firm Forrec,[15] promising "seven-story water slides and a wave machine, as well as attractions for the more land inclined such as shopping centers, cafes, and performance stages."[16]

The facility officially reopened on 28 July 2010, with the water park opening on 8 August 2010 (the second anniversary of the Games' opening). The renovation divided the facility into three pool areas (a main pool, Olympic "demonstration" pool, and a training pool), as well as the 12,000 m2 (130,000 sq ft) water park area.[17][18]

In July 2013, the Water Cube introduced a new LED light show on its exterior, "Nature and Man in Rhapsody of Light", by artist Jennifer Wen Ma and lighting designer Zheng Jiawei. Its colors are determined by trending use of emoji on Sina Weibo, which is in turn used to calculate the "mood" of the Chinese public [19]

In 2018, it was reported that the venue had achieved revenues of 124 million yuan (about $18 million USD), and has been breaking even for years.[20]

2022 Winter Olympics
The venue in its new curling configuration.

The Water Cube will host curling events during the 2022 Winter Olympics and Paralympics, a configuration nicknamed the "Ice Cube". After Beijing was awarded the Games, work began on renovations to the facility to allow it to be converted to a curling rink, including the addition of ice-making equipment and other necessary climate control and monitoring systems.[21][22][23]

It hosted its first event in this configuration, the China Junior Curling Open, in December 2019.[24]

Awards

The special award for the most accomplished work in the section Atmosphere is awarded to the Australian architecture firm PTW Architects, CSCEC + Design and Arup for the project National Swimming Centre, Beijing Olympic Green, China. The project demonstrates in a stunning way, how the deliberate morphing of molecular science, architecture, and phenomenology can create an airy and misty atmosphere for a personal experience of water leisure

— Quote from the Jury report of the Official Awards 9th International Architecture Exhibition – METAMORPH, Venice Biennale
gollark: Yes, this is something I investigated somewhat.
gollark: It doesn't matter if it's ”””normal”””, social acceptability is a 🐝 standard for thing goodness.
gollark: I... see.
gollark: No wonder LyricTech™ apinators are 15 orders of magnitude below even the lowest-end GTech™ apiogenesis devices.
gollark: What *are* your engineers doing?

See also

References
  1. Official Olympics Site National Aquatics Center Archived August 9, 2008, at the Wayback Machine
  2. Arup East Asia. "The Water Cube, National Aquatics Centre, Beijing". Archived from the original on June 4, 2008. Retrieved August 17, 2008.
  3. "Water Cube - National Swimming Centre". PTW Architects. Retrieved August 5, 2015.
  4. Welcome to WaterCube, the experiment that thinks it's a swimming pool by Peter Rogers in The Guardian, May 6, 2004
  5. arup.com (2006). "Best of What's New 2006 – Engineering". Popular Science. 269 (6): 84–85.
  6. Jaivin, Linda (2014). Beijing. London: Reaktion Books. ISBN 1780232616.
  7. Ball, Philip (December 2006). "Science in Culture: Beijing Bubbles". Nature.
  8. Beijing venues – National Aquatics Center, on BBC Sports.
  9. Pearson, Clifford (July 2008). "Projects: National Swimming Center". Architectural Record. McGraw Hill. 196 (7). Archived from the original on August 13, 2008. Retrieved August 16, 2008.
  10. Barbara Demick. "Beijing's Water Cube Still Drawing Crowds". Los Angeles Times. Aug. 13, 2009.
  11. Casino Oceanus – The Unofficial Casino Oceanus Website from www.oceanus.asia Archived February 1, 2011, at the Wayback Machine
  12. Berkes, Howard (August 10, 2008). "China's Olympic Swimming Pool: Redefining Fast". NPR. Retrieved August 5, 2015.
  13. "Goodhew demands hi-tech suit ban". BBC Sport. February 20, 2009. Retrieved January 31, 2020.
  14. Crouse, Karen (July 24, 2009). "Swimming Bans High-Tech Suits, Ending an Era". The New York Times. Retrieved August 5, 2015.
  15. "Water Cube will close for renovation from October 15". eBeijing, the Official Website of the Beijing Government. Retrieved August 5, 2015.
  16. "In Pictures: Beijing's Water Cube Legacy". Architect's Journal. August 19, 2010.
  17. "Water Cube set to reopen soon with a big splash". China Daily. Retrieved January 31, 2020.
  18. "Water Cube set to reopen, leisure park on way". China Daily. Retrieved January 31, 2020.
  19. Korosec, Kirsten. "China's mood in real-time". ZDNet. Retrieved January 31, 2020.
  20. 邹, 松霖 (2019). "水立方：世界场馆良性循环的优等生". China Economic Weekly 中国经济周刊.
  21. "Water Cube to be transformed for events on ice". China Daily. August 11, 2015. Retrieved January 31, 2020.
  22. "Water Cube to be frozen into Ice Cube for Beijing 2022 Winter Games". China Daily. Retrieved January 31, 2020.
  23. "Convertible curling rink for Beijing 2022 soon to be completed". Inside the Games. Retrieved January 31, 2020.
  24. "Yearender: Beijing 2022 organizers move focus from construction to operation". Xinhua. Retrieved January 31, 2020.
  25. "PTW Projects:Watercube-National Swimming Centre". Archived from the original on August 19, 2006. Retrieved December 6, 2006.(page in Flash presentation)
  26. Lee, Ellen. "Water Cube scoops the pool at project management awards". Arup. Archived from the original on September 23, 2015. Retrieved August 5, 2015.
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