Tokyo Skytree
The Tokyo Skytree (Japanese東京 スカイ ツリー, Tōkyō Sukaitsurī ) is a 634 -meter high TV and radio broadcasting tower in Tokyo, Japan. It was opened on 22 May 2012. It is the highest TV Tower and at the same time after the Burj Khalifa, the second highest building in the world.
General
Location
The Tokyo Skytree is in the district of the district Oshiage Sumida and exceeds with a height of 634 meters, the 333 meter high Tokyo Tower in Minato by about 90 %. The tower stands on the site of an old marshalling yard Tōbu the railway company that wanted to take over (about 460 million euros ) a major part of the then estimated total cost of around 60 billion yen. The remaining amount should be borne by the six participating in the project television and radio stations.
The partners have built at the foot of the tower is a large shopping center ( " Plaza" ), which has driven the inhabitants from the environment and on the ride waiting at the tower tourists as a target group. The building is connected to the previous station Oshiage and, associated with the nodes of Tokyo. The train station of Oshiage is served by the Ginza line of Tōkyō Metro, Toei Asakusa Line, Keisei Oshiage - line and finally the Isesaki line of Tōbu.
Name and height
The name of the tower was chosen from 1 April to 30 May 2008 through a survey. The choice was between six names:
- Tokyo Edo Tower (东京EDOタワー)
- Skytree Tokyo (東京 スカイ ツリー)
- Mirai Tower (みらい タワー, dt " future storm" )
- Yumemiyagura (ゆめみ やぐら, dt as: " 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 announcement of the name of election took place on 10 June 2008. Until then, the tower had been referred or as Sumida Tower (墨田 タワー), among others, as Shin Tōkyō Tower ( "New Tokyo Tower " in reference to the old Tokyo Tower新 東京 タワー, dt ).
The height of 634 meters was chosen so that it is easy to remember. The figures 6 (mu mu [ ttsu ] ), 3 ( sa san ) and 4 ( shi ) result " Musashi " an old name for the region in which Tokyo is located.
Architectural History
Construction company was the Obayashi Group. The design comes from the oldest Japanese architectural firm Nikken Sekkei Ltd. .. The groundbreaking ceremony for the construction of the tower was on 14 July 2008. Completion was on 29 February 2012, the opening took place as planned on 22 May 2012.
End of October 2010, the tower had reached a height of 497 meters, then the antenna is to achieve greater heights built. In early March 2011, the 600 -meter mark was exceeded. After originally a height of about 610 meters was planned, the final height of 634 meters was announced on 16 October 2009, surpassing the tower the Canton Tower in China as the highest television tower in the world. He is after the Burj Khalifa in Dubai at 830 meters is currently the second tallest free-standing structure in the world. On 18 March 2011, the tower has reached its final height of 634 meters. Previously, the city was affected by the Tohoku earthquake and numerous aftershocks.
The end of construction was announced on February 29, 2012.
Construction
The Skytree radiates as a television tower from digital signals. It was built in order to reduce interference to the transmission signals due to the numerous tall buildings in Tokyo.
The tower is a two-part structure consisting of an outer steel frame and an inner shaft in a cylindrical shape made of reinforced concrete. In the range from 125 meters to 375 meters both towers are connected with oil dampers are used to reduce vibrations in the event of an earthquake. According to the designers up to 50% of the seismic energy can be absorbed. The vibration reducing technology that is integrated into the central shaft, was inspired by Japanese Buddhist architecture in antiquity, such as the five-story pagoda as a tower basket. At the Tokyo Sky Tree, the inner shaft with a 2523 steps above the staircase is equipped for emergencies.