Pitampura TV tower

Pitampura TV tower
Basic data
Place:	North West Delhi
Union Territory:	Delhi
Country:	India
Altitude :	423  m
Coordinates: 28 ° 41 ′ 50.2 "  N , 77 ° 9 ′ 1.3"  E
Use:	TV tower , revolving restaurant , observation tower
Tower data
Construction time :	1984-1988
Client : National Buildings Construction Co Ltd. Building material : Steel , concrete
Total height :	235  m
Data on the transmission system
Further data
Status:	currently closed
Construction:	Reinforced concrete construction
Owner:	All India Radio
Opening:	1988
Height of tower cage:	150-161 m
Position map
Pitampura TV tower

The TV tower Pitampura is a 235 meter high TV tower in the northwest of the Indian city ​​of North West Delhi not far from the capital New Delhi and thus the sixth highest in India. It houses a revolving restaurant and is the highest television tower, which can also be used as a publicly accessible observation tower . However, it has not been open to the public since a fire in January 2013. It is located near the Netaji Subhash Place subway station on the Delhi Metro . The name Pitampura goes back to the name of the district of the same name in Delhi.

history

The laying of the foundation stone for the broadcast position took place in 1981. The tower itself was completed in a four-year construction period in November 1988 in a business park in Delhi. The client was the National Buildings Construction Corporation Ltd., which is subordinate to the Indian government. The official inauguration took place on November 7, 1988 in the presence of the Prime Minister Rajiv Gandhi .

In October 2010, Satyendra Verma, an officer in the Indian army, managed a successful object jump from the television tower, with which he introduced this extreme sport in India.

On January 5, 2013, around 10.30 p.m., a fire broke out in the tower that was brought under control with a two-hour deployment of 15 fire fighters. According to official information, no persons were harmed. Since then, the tower has not been open to the public for security reasons. Broadcasting activities were also impaired after the incident.

description

Foundation and basis

The foundation is formed by 279 pillars with a diameter of 50 centimeters, each bearing a load of 125 tons. The tower rests on a 2.5 meter thick concrete pile head plate that measures 32 meters in diameter. The tower is statically designed so that it can withstand wind speeds of up to 206 km / h and is earthquake-proof .

At the base of the tower there is a base building in which there are transmission rooms.

Tower shaft and cage

The television tower Pitampura, built from reinforced concrete, has a total height of 235 meters. The shaft has small, protruding balconies at three heights in different directions, which are designed for the attachment of parabolic antennas. The shaft diameter tapers from 15.7 meters at the base to 6.7 meters below the tower cage . The corresponding thickness of the shaft is reduced from 60 centimeters at the base to 45 meters at the top. There are three platforms inside the shaft where visitors can go in the event of an emergency. Two elevators for 13 people each take visitors to the tower cage within a minute. An emergency staircase with 700 steps also connects the basket with the tower base.

A four-story tower cage protrudes from 147.5 meters . The lowest storey at 150.5 meters has a diameter of 13.1 meters and serves as an antenna platform for microwave transmitters . Above it is a revolving restaurant for around 100 people at 155 meters . The viewing platform above at 158.50 meters and a diameter of 26.5 meters offers space for around 300 visitors. The windows of these two floors are inclined outwards. The levels above are tapered again so that the operating floor is 161.5 meters and has a diameter of 23.5 meters. The concrete shaft extends up to a height of 167 meters. The concrete used is around 9,000 cubic meters.

Antenna support

The red and white colored, around 100 tons heavy steel framework is 68 meters high and tapers in diameter into three sections: from 167 to 198.5 meters, up to 217.5 meters and up to the top to 235 meters. The antennas use three frequency bands : two for broadcasting television programs, the third for FM radio programs.

Frequencies and Programs

The Pitampura television tower broadcasts the following television programs, which cover a radius of around 85 kilometers from the transmission location:

Program name	channel	ERP (kW)	Video carrier frequency (MHz)	Acoustic carrier frequency (MHz)
DD National	5	20th	175.25	180.75
DD News	7th	20th	189.25	194.75

literature

• HR Viswanath: Television Tower in New Delhi with Revolving Restaurant at Top (India). in: IABSE Structures C-50/89, August 1989, ISSN  0377-7286 , pp. 50-51. ( here online )

Web links

Commons : Pitampura TV Tower  - collection of pictures, videos and audio files

• Official website for the broadcasting station at the Pitampura TV tower
• skyscraperpage.com: Pitampura TV Tower

Individual evidence

1. ↑ About HPT Pitampura , accessed August 19, 2013
2. ↑ India Today: Army introduces base jumping to India , October 29, 2010, accessed August 19, 2013
3. ↑ The Hindu: Armyman dares country's first BASE jump , accessed August 19, 2013
4. ↑ The Financial Express: Fire at Pitampura TV tower  ( page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. , accessed August 19, 2013  
5. ^ The Hindu: FM radio services disrupted after fire at Pitampura TV tower , accessed August 19, 2013
6. ↑ ^{a b c} Viswanath: Television Tower in New Delhi with Revolving Restaurant at Top (India). S 50
7. ↑ Viswanath: Television Tower in New Delhi with Revolving Restaurant at Top (India). P 51
8. ↑ Doordarshan HPT Pitampura  ( page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. , accessed August 19, 2013