Tokyo Skytree

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Tokyo Skytree
東京 ス カ イ ツ リ ー
Image of the object
Tokyo Skytree 2012
Basic data
Place: Sumida ( Tokyo )
Prefecture: Tokyo
Country: Japan
Coordinates: 35 ° 42 ′ 36.2 "  N , 139 ° 48 ′ 38.6"  E
Use: TV tower , telecommunications tower , radio transmitter , restaurant , observation tower
Accessibility: TV tower open to the public
Tower data
Construction time : 2008–2012
Total height : 634  m
Viewing platform: 450  m
Restaurant: 350  m
Data on the transmission system
Waveband : FM transmitter
Radio : VHF broadcasting
Send types: Digital television , directional radio
Further data
Groundbreaking : July 14, 2008
Commissioning : May 22, 2012
Construction: Reinforced concrete tower
Position map
Tokyo Skytree (Japan)
Tokyo Skytree
Tokyo Skytree

The Tokyo Skytree ( Japanese 東京 ス カ イ ツ リ ー , Tōkyō Sukaitsurī ) is a 634 meter high television and radio transmission tower in the Japanese capital Tokyo . It opened on May 22, 2012. It is the tallest television tower and, after the Burj Khalifa in Dubai, the second tallest structure on earth.

General

location

View of the southwest of Tokyo from the Tokyo Skytree Tembodeck at an altitude of 350 meters

The Tokyo Skytree is located in the Oshiage district of the Sumida district and, with a height of 634 meters, exceeds the 333 meter high Tokyo Tower in Minato by around 90 percent. The tower stands on the site of an old marshalling yard of the Tōbu railway company , which wanted to take over the majority of the estimated total costs of around 60 billion yen, the equivalent of around 460 million euros. The remaining amount was to be borne by the six television and radio stations involved in the project.

The shareholders have built a large shopping center (“plaza”) at the foot of the tower, which is aimed at the residents of the area and tourists waiting for the ride to the tower. The building is connected to the previous Oshiage train station and thus connected to the Tokyo hubs. The train station of Oshiage is from the Tokyo Metro Hanzōmon Line of Tōkyō Metro , the Toei Asakusa Line , the Keisei Oshiage line and the Isesaki Line of Tobu approached.

Name and Height

The Tokyo Skytree in height comparison

The name of the tower was decided through a poll in April and May 2008. There were six names to choose from:

  • Tokyo Edo Tower ( 東京 EDO タ ワ ー )
  • Tokyo Skytree ( 東京 ス カ イ ツ リ ー )
  • Mirai Tower ( み ら い タ ワ ー , German "Future Tower ")
  • Yumemiyagura ( ゆ め み や ぐ ら , German about: "Dream Tower")
  • Rising East Tower ( ラ イ ジ ン グ イ ー ス ト タ ワ ー )
  • Rising Tower ( ラ イ ジ ン グ タ ワ ー )

The name choice was announced on June 10, 2008. Until then, the tower was known as Shin Tōkyō Tower ( 新 東京 タ ワ ー , German "New Tokyo Tower" in relation to the old Tokyo Tower ) or as Sumida Tower ( 墨 田 タ ワ ー ).

The height of 634 meters has been chosen to be easy to remember. The numbers 6 ( mu from mu [ttsu] ), 3 ( sa from san ) and 4 ( shi ) result in “ Musashi ”, an old name for the region in which Tokyo is located.

Building history

The construction company was the Ōbayashi Group . The design comes from the oldest Japanese architecture firm Nikken Sekkei . The groundbreaking for the construction of the tower was on July 14, 2008. The completion was on February 29, 2012, the opening took place on May 22, 2012 as planned.

At the end of October 2010 the tower had reached a height of 497 meters, after which the antenna was erected to achieve its final size. At the beginning of March 2011, the 600 meter mark was exceeded. After a height of about 610 meters was originally planned, the final height of 634 meters was announced on October 16, 2009, making the tower the tallest television tower in the world than the Canton Tower in China. After the tower reached its final height on March 18, 2011, it is currently the second tallest free-standing structure in the world after the 830 meter high Burj Khalifa in Dubai .

The end of construction was announced on February 29, 2012.

description

The Skytree broadcasts digital signals as a television tower . It was built to reduce interference in the broadcast signals due to the large number of tall buildings in Tokyo.

The engineers developed a special anchorage for the Tokyo Skytree to increase the stability in the soft ground. A grid of star-shaped 1.2 meters thick and 35 to 52 meters deep steel plates was sunk into the previously excavated ground at three points, so-called Kanae piers. These compaction zones are surrounded by conventional soil reinforcement by a network of steel pillars and long floor slabs between the three compaction zones.

The base of the Tokyo Skytree is therefore triangular, and towards the top the transmission tower tapers barely noticeably into a cylindrical column. The tower has a two-part structure, an outer steel frame with 37,000 elements encloses an inner cylindrical reinforced concrete column. At a height of 125 to 375 meters, both towers are connected with oil dampers , which serve to reduce vibrations in the event of an earthquake. According to the designers, up to 50 percent of the earthquake energy can be absorbed. The vibration-damping technology that is integrated into the central shaft was inspired by Japan's ancient Buddhist architecture, such as the five-story pagodas as a tower basket . The inner column of the Tokyo Sky Tree is equipped with a 2523-step staircase for emergencies.

There are two viewing platforms, at a height of 350 meters there is a restaurant, a café and shops behind large windows. The highest platform is at a height of 450 meters. A sloping, 110-meter-long glass corridor (“Air Walk”) connects floor 445 with floor 450.

lighting

The Tokyo Skytree is alternately illuminated, the play of light alternates every two days between the patterns "Iki" in sky blue, "Miyabi" in bluish-purple and "Nobori" in orange-red color. There are special colors for special occasions.

  • Illumination of the Tokyo Skytree

  • Iki pattern with blue color

  • Miyabi pattern (bluish purple)

  • The three basic colors

  • White

  • "Momoclo"

  • UN blue on the 70th anniversary of the founding of the UN

  • Blue-white-red in memory of the terrorist attacks on November 13, 2015 in Paris

  • "Burning candle"

  • green

literature

  • Thomas Bock, Thomas Linner, Shino Miura, Sophie Vetter: Tokyo Sky Tree: Applied building robotics as a guarantee for quality and earthquake safety . In: Bauingenieur , ISSN  0005-6650 , Volume 87, No. 2, 2012, pp. 65–71.
  • Friedrich von Borries , Matthias Böttger, Florian Heilmeyer: TV Towers - television towers, 8559 meters politics and architecture , Jovis Verlag, Berlin 2009, ISBN 978-3-86859-024-1 , pp. 244-251.

Movie

  • Ingenious technology. The Tokyo Skytree. (OT: The Invincible Tower. ) Documentary, Great Britain, 2016, 46:25 min., Script and director: NN , production: Science Channel US, series: Geniale Technik , (OT: Impossible Engineering ), first broadcast: May 4, 2017 on Science Channel, German first broadcast: July 12, 2017 on n-tv , table of contents from fernsehserien.de, online video and 5 facts from Science Channel (English).

Web links

Commons : Tokyo Skytree  - collection of images, videos and audio files

Individual evidence

  1. ↑ a b 事業 概要 . In: Official website of the Tokyo Skytree. Archived from the original on September 2, 2011 ; Retrieved September 2, 2011 (Japanese).
  2. ↑ a b Highest Point: 634 m. In: Official website of the Tokyo Skytree. Archived from the original on May 29, 2012 ; accessed on May 24, 2012 .
  3. ↑ About Tokyo Sky Tree. In: Official website of the Tokyo Skytree. Retrieved December 14, 2009 .
  4. ↑ Form download for choosing the name. Retrieved April 20, 2008 (Japanese).
  5. ↑ ネ ー ミ ン グ 全国 投票 の ポ ス タ ー 展示 列車 が 走 り ま す! . In: Tokyo Skytree Town. May 1, 2008, accessed on May 24, 2012 (Japanese, suggested names see the linked PDF file (200 kB) ).
  6. ↑ 東京 ス カ イ ツ リ ー. In: Yahoo!ニ ュ ー ス. Archived from the original on June 11, 2008 ; Retrieved October 21, 2014 (Japanese).
  7. ↑ Tokyo Sky Tree: On Track to Open as World's Largest Tower in Spring 2012. In: Nikken Sekkei. June 30, 2010, archived from the original on January 4, 2015 ; accessed on October 21, 2014 (English).
  8. ↑ a b Tokyo Sky Tree construction starts. In: The Japan Times . July 15, 2008, accessed May 24, 2012 .
  9. ^ End in sight for the Sky Tree. In: World Architecture News. March 2, 2011, accessed May 24, 2012 .
  10. ↑ Japan Set For Worlds Tallest. In: skyscrapernews.com. May 16, 2006, accessed May 24, 2012 .
  11. ↑ TV tower construction site in Tokyo: 634 meters high. In: ORF . March 18, 2011, accessed May 24, 2012 .
  12. ↑ Angela Köhler: Tokyo's Tower of Hope. In: Badische Zeitung . August 9, 2011, accessed August 10, 2011 .
  13. ↑ Japan finishes world's tallest communications tower . In: Agence France-Presse . Retrieved November 9, 2012 .
  14. ^ Atsuo Konishi, Masaru Emura: Structural Design and Construction of the Foundation of Tokyo Sky Tree. In: ctbuh.org / International Journal of High-Rise Buildings , 2015, Vol. 4, No. 4, pp. 249–259, (PDF; 12 pp., 841 kB), accessed on July 17, 2017.
  15. ^ Christening of Tokyo Skytree. In: The Japan Times , May 25, 2012.
  16. ↑ Hiroko Nakata: Tokyo Sky Tree: Tokyo Sky Tree opener looms large. In: The Japan Times . February 21, 2012, accessed March 20, 2012 .
  17. ↑ Technology: Tokyo Sky Tree - a pagoda towering into the sky. (PDF) In: News from Japan, No. 70. Japanese Embassy in Germany, September 2010, archived from the original on January 6, 2013 ; Retrieved May 24, 2012 .
  18. ↑ Sarah Elsing: Japan: Martial Arts builds the highest radio tower in the world. In: The world . May 20, 2012. Retrieved May 22, 2012 .
  19. ↑ Tokyo Observation Deck Guide. In: japan-guide.com , accessed July 17, 2017.
  20. ↑ Visitor information (pdf; German), accessed on July 1, 2019