is a broadcasting, restaurant, and observation tower in Sumida, Tokyo, Japan. It became the tallest structure in Japan in 2010 and reached its full height of Шаблон:Convert in March 2011, making it the tallest tower in the world, displacing the Canton Tower, and the second tallest structure in the world after Burj Khalifa (829.8 m/2,722 ft).
The tower is the primary television and radio broadcast site for the Kantō region; the older Tokyo Tower no longer gives complete digital terrestrial television broadcasting coverage because it is surrounded by high-rise buildings. Skytree was completed on 29 February 2012, with the tower opening to the public on 22 May 2012. The tower is the centrepiece of a large commercial development funded by Tobu Railway and a group of six terrestrial broadcasters headed by NHK. Trains stop at the adjacent Tokyo Skytree Station and nearby Oshiage Station, and the complex is only Шаблон:Convert north-east of Tokyo Station.
The design was published on 24 November 2006, based on the following three concepts:
The base of the tower has a structure similar to a tripod; from a height of about Шаблон:Convert and above, the tower's structure is cylindrical to offer panoramic views of the river and the city. There are observatories at Шаблон:Convert, with a capacity of up to 2000 people, and Шаблон:Convert, with a capacity of 900 people. The upper observatory features a spiral, glass-covered skywalk in which visitors ascend the last 5 meters to the highest point at the upper platform. A section of glass flooring gives visitors a direct downward view of the streets below.
The tower has seismic proofing, including a central shaft made of reinforced concrete. The main internal pillar is attached to the outer tower structure Шаблон:Convert above ground. From there until Шаблон:Convert the pillar is attached to the tower frame with oil dampers, which act as cushions during an earthquake. According to the designers, the dampers can absorb 50 percent of the energy from an earthquake.
The exterior lattice is painted a colour officially called "Skytree White". This is an original colour based on a bluish white traditional Japanese colour called Шаблон:Nihongo.
The illumination design was published on 16 October 2009. Two illumination patterns Iki (chic, stylish) sky blue and Miyabi (elegance, refinement) purple will be used, alternating daily. The tower is illuminated using LED lights.
From October to November 2007, suggestions were collected from the general public for the name to be given to the tower. On 19 March 2008, a committee chose six final candidate names: Шаблон:Nihongo, Шаблон:Nihongo, Шаблон:Nihongo, Шаблон:Nihongo, Шаблон:Nihongo, Шаблон:Nihongo. The official name was decided in a nationwide vote, and was announced on 10 June 2008 as "Tokyo Skytree". The name received around 33,000 votes (30%) out of 110,000 cast, with the second most popular name being "Tokyo Edo Tower".
Since the name was decided in Japanese, which has no spaces between words, it is not possible to say whether it was intended to be "Tokyo Skytree" or "Tokyo Sky Tree". The official website states "TOKYO SKYTREE" (all caps) as a registered trademark in English, but the version in the logo is clearly "SKY TREE". English-language publications are divided between the two versions.
The height of Шаблон:Convert was selected to be easily remembered. The figures 6 (mu), 3 (sa), 4 (shi) stand for "Musashi", an old name of the region where the Tokyo Skytree stands.
Tokyo Skytree is used as a radio/television broadcast and communications tower.
Channel | Channel name | Callsign | Signal power | ERP | Broadcast area |
---|---|---|---|---|---|
|
NHK General TV | JOAK-DTV | 10 kW | 10 kW | Tokyo |
|
NHK Educational TV | JOAB-DTV | |||
|
Nippon Television | JOAX-DTV | |||
|
TV Asahi | JOEX-DTV | |||
|
Tokyo Broadcasting System Television | JORX-DTV | |||
|
TV Tokyo | JOTX-DTV | |||
|
Fuji Television | JOCX-DTV |
Frequency | Station name | Callsign | Power | ERP | Broadcast area |
---|---|---|---|---|---|
594 kHz | NHK Radio 1 Tokyo | JOAK-AM | 100 kW | 100 kW | Tokyo |
693 kHz | NHK Radio 2 Tokyo | JOAB-AM | |||
82.5 MHz | NHK FM Broadcast Tokyo | JOAK-FM |
As the Skytree's opening approached, people reportedly waited in line for a full week to get tickets. By the opening, trips up the tower were fully booked for the first two months of operation. The opening day drew a crowd of tens of thousands, despite rainy conditions which blocked the view from the tower's observation deck. Strong winds also forced two elevators to be shut down, leaving some visitors briefly stranded on the observation deck.
According to Tobu, 1.6 million people visited Skytree in its first week. Local residents reported that the influx of visitors disturbed the peace of their community and had, so far, generated little economic benefit for the local area.