Yerevan TV Tower

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Yerevan TV Tower
Yerevan TV tower.jpg
General information
Type TV and Radio broadcast
Location Yerevan, Armenia
Coordinates 40°10′16.64″N 44°32′10.77″E / 40.1712889°N 44.5363250°E / 40.1712889; 44.5363250Coordinates: 40°10′16.64″N 44°32′10.77″E / 40.1712889°N 44.5363250°E / 40.1712889; 44.5363250
Completed 1977
Height
Roof 311.7 m (1,023 ft)

Yerevan TV Tower (Armenian: Երևանի հեռուստաաշտարակ, Yerevani herustaashtarak) is a 311.7-metre (1,023 ft) high lattice tower[1] built in 1977 on Nork Hill near downtown Yerevan, Armenia. It is the tallest structure in Caucasus, second-tallest tower in West Asia (after Milad Tower in Tehran), eighth-tallest free-standing steel-truss tower and thirtieth-tallest tower in the world.

Construction[edit]

In late 1960s it was decided to replace the 180-metre (590 ft)-high TV tower in Yerevan due to insufficient capacity.

The works on Yerevan TV tower and Tbilisi Tower (also needed replacement) started simultaneously at the Ukrainian Institute for Steel Structures, the project leaders were Isaak Zatulovsky, Anatoli Perelmuter, Mark Grinberg, Yuri Shevernitsky, and Boris But. Tbilisi and Yerevan were the first among the Soviet capitals where towers were built (the same group later worked on the project of Kiev TV Tower though it was finished earlier than in Yerevan).[2] Tbilisi Tower was shorter and lighter and slightly tilted compared to Yerevan Tower.

Construction started in 1974 and finished in 3 years, the steel was coming from Rustavi Metalurgical Plant in Georgia.

The old tower was moved to Leninakan (current Gyumri), where it is still functional today.

Structure[edit]

The structure of the TV tower in Yerevan is virtually divided into three parts: base, body, and antenna.

The base is a truss-steel tetrahedron that at the height of 71 metres becomes a closed-platform observation deck and technical offices, on the roof of this lower-tower basket are radio antennas. The triangular truss-steel structure continues to the height of 137 metres where a two-storey 18-metre structure in the shape of an inverted-truncated cone is situated, the lattice grid structure continues another 30 meters.

In the centre of this structure there is a concrete vertical pipe structure with a diameter of 4.2 metres, in which, among other things, the lift-shaft is hidden. The pipe projecting from the basement continues as an antenna carrier, this form was widespread in the Soviet Union with steel towers. For example, the Kiev TV tower and the Saint Petersburg TV Tower follow this construction principle.

The antenna carrier tapers (diameter per section: 4 meters, 3 meters, 2.6 meters, 1.72 meters and 0.75 meters) between five maintenance bridges to the top. The entire steel structure is painted white and international orange to comply with air safety regulations (similar to the Tokyo Tower and the Tbilisi TV Tower).

The weight of the structure is 1900 tonnes and the basement is 1170 metres above the sea level.[3]

Broadcasting History[edit]

Yerevan TV tower at night

Installation of the tower in 1977 allowed to receive wide variety of programs from the Moscow Central television, as well as from other Soviet Union republics, the average daily length of programs broadcast by Armenian television reached twelve hours, of which two-and-a-half hours in color, including four hours, thirty-five minutes of own programming. Ninety-six percent of the population watched the first program; in 1978 it became possible to also receive the fourth channel of the Central television in Armenia[4] In 1978 the programs watched were news (25%), music (23%), educational (13%), pre-adult entertainment (14.5%), political (9%) and military (6%), sport (4%), movies (3.5%) and others.

By 1978, the number of TV sets reached five hundred thousand, of which one hundred thousand were color. Armenian SSR was on the second place in the Soviet Union for the popularization of TV, the length of TV programs per day reached 19 hours. About fifty percent of the programs were in color and seventy percent were being recorded. Armenia became the first of the republics of the Soviet Union by the percentage of the TV audience and the volume of programs.[4]


References[edit]

  1. ^ . CTBUH http://www.skyscrapercenter.com/building/yerevan-tv-tower/9412. Retrieved 15 October 2017.  Missing or empty |title= (help)
  2. ^ Арошенко и др. (2004) Тайны Стальных Конструкций. Киев: Издательство "Сталь" [in Russian] pg.80
  3. ^ Маркарян, Манукян. (2013). Геодезический мониторинг Ереванской Телебашни. Cучасні досягнення геодезичної науки та виробництва, I(25) in Russian pg. 76
  4. ^ a b "Armtv.com - Yerevan from 3211.7 meter height". Archived from the original on 2007-10-14. Retrieved 2007-12-23. 

External links[edit]