Fernsehturm Berlin - Revision history

Designing Buildings at 07:51, 8 December 2020

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	* The Bierpinsel, Berlin.		* The Bierpinsel, Berlin.

−	[[Category:~~Projects_and_case_studies~~]] [[Category:DCN_Project_Knowledge]]	+	[[Category:DCN_Commentary]] [[Category:DCN_Project_Knowledge]] [[Category:Projects_and_case_studies]]

81.129.234.232 at 05:51, 1 September 2017

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−	[[File:Berlintvtower1.jpg]]	+	[[File:Berlintvtower1.jpg\|link=File:Berlintvtower1.jpg]]

	= Introduction =		= Introduction =

−	Fernsehturm Berlin is a television tower in central Berlin, Germany. Since its completion in 1969, it has become a prominent and iconic landmark of Germany.	+	Fernsehturm Berlin is a television tower in central Berlin, Germany. Since its completion in 1969, it has become a prominent and iconic landmark. At a height (including the antenna added in 1997) of 368 m (1,207 ft), it is the tallest structure in Germany and the fourth tallest freestanding structure in Europe.

−	The tower was constructed by the German Democratic Republic (DDR), ~~and~~ intended to be symbolic of Communist power and technical prowess, as well as the strength of East Germany.	+	The tower was constructed by the German Democratic Republic (DDR), intended to be symbolic of Communist power and technical prowess, as well as the strength of East Germany.

−	The ~~architectural~~ design of the tower demonstrates the influence of the Space Age and new technologies, with the cross-section ~~being designed to resemble~~ a space rocket, ~~while~~ the sphere ~~was~~ inspired by the Soviet Sputnik satellite.	+	The design of the tower demonstrates the influence of the Space Age and new technologies, with the cross-section resembling a space rocket, and the sphere being inspired by the Soviet Sputnik satellite.

−	The location of the tower caused controversy, ~~as it was deliberately~~ centred in a historic medieval area of Berlin, which ~~resulted in a large amount of destruction~~. A medieval church continues to stand next to the tower as a reminder of the old city that ~~was demolished to make~~ way for the construction ~~work.~~	+	The location of the tower caused controversy, centred in a historic medieval area of Berlin, which required significant demolition. A medieval church continues to stand next to the tower as a reminder of the old city that made way for the new construction.
−		+
−	~~With a height (including the antenna added in 1997) of 368 m (1,207 ft), it is the tallest structure in Germany and the fourth tallest freestanding structure in Europe~~.	+

	= Design and construction =		= Design and construction =

−	The original design of the slender, upward-thrusting tower stem was by ~~the~~ architect Hermann Henselmann, although it was built with the involvement of several East German architects and planners.	+	The original design of the slender, upward-thrusting tower stem was prepared by architect Hermann Henselmann, although it was built with the involvement of several East German architects and planners.

−	Construction ~~of the tower~~ began in 1965~~. It used a building technique known as the '~~climbing formwork~~' method, whereby the internal steel framework grows at a slightly faster rate than the outer reinforced concrete shaft~~. ~~This~~ shaft is ~~erected around~~ the ~~steel framework~~.	+	Construction began in 1965 using climbing formwork. The shaft of the tower tapers from 16 m diameter to 9 m, and is divided into 5 stages by mezzanine floors. These divisions are marked on the outside by portholes.

−	~~The shaft of the tower tapers from 16 m diameter to 9 m, and is divided into 5 stages by mezzanine floors~~. ~~These divisions can be spotted from the outside by the portholes~~.	+	[[File:Berlintvtower2.jpg\|link=File:Berlintvtower2.jpg]]

−	~~[[File:Berlintvtower2~~.~~jpg]]~~	+	The sphere was designed as a visitor platform with a revolving restaurant in the middle. Its diameter measures 32 m (105 ft) and it is constructed at a height of 200 m.

−	The ~~sphere was designed~~ to be a ~~visitor platform~~ with ~~a revolving restaurant in~~ the ~~middle. The~~ sphere ~~diameter measures 32 m (105 ft)~~. ~~The engineers~~ were ~~faced with considerable challenges when tackling~~ the ~~installation~~ of the sphere ~~at a height of 200 m~~.	+	The first solution to the challenges this presented was a single-shell construction, with the sphere's supporting steel framework being prefabricated on the ground. Cranes lifted the segments up to the required height where they were then attached to the circular platform. This also formed the completion of the concrete shaft. The second solution was to suspend the sphere on supporting tie rods, giving the impression that it is floating.

−	Their first solution was single-shell construction, with the sphere's supporting steel framework being prefabricated on the ground. Cranes lifted the segments up to the required height where they were then attached to the circular platform. This also formed the completion of the concrete shaft. Their second solution following this, was to suspend the sphere on supporting tie rods, enhancing the impression that it is floating.	+	The maximum movement under wind load at the top of the tower is around 60 cm, with an oscillation frequency at the restaurant level of between 7-10 seconds in particularly strong winds. The tower was fitted with a mass damper, a metal rod weighing 1.5 tons suspended by three cables, with four hydraulic telescopic shock absorbers to accommodate this movement.
−		+
−	The maximum movement under wind ~~pressure~~ at the top of the tower is around 60 cm, with an oscillation frequency at the restaurant level of between 7-10 seconds in particularly strong winds. The tower was fitted with a mass damper, a metal rod weighing 1.5 tons suspended by three cables, with four hydraulic telescopic shock absorbers to accommodate this movement.	+

	= Post-completion =		= Post-completion =

−	The tower ~~was~~ undergone several modernisation works since it was completed and become operational in 1969.	+	The tower has undergone several modernisation works since it was completed and become operational in 1969. In 1993, the interior was renovated, with upgraded transmission equipment for TV stations being added. Two high-speed elevators (top speed 6 m/second) were installed, as well as one for services. General sanitation works were undertaken in 1995/96, and technical installations, HVAC and fire protection system renewed.
−		+
−	In 1993, the interior was renovated, with upgraded transmission equipment ~~from different~~ TV stations being added. Two high-speed elevators (top speed 6 m/second) were installed, as well as one for services.	+
−		+
−	General sanitation works were undertaken in 1995/96, and technical installations, HVAC and fire protection system renewed.	+

	The tower continues to be a popular tourist attraction, with a visitor platform in the sphere with panoramic views that can reach 26 miles on a day with clear visibility.		The tower continues to be a popular tourist attraction, with a visitor platform in the sphere with panoramic views that can reach 26 miles on a day with clear visibility.
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	* The Bierpinsel, Berlin.		* The Bierpinsel, Berlin.

−	[[Category:Projects_and_case_studies]]	+	[[Category:Projects_and_case_studies]] [[Category:DCN_Project_Knowledge]]

Editor at 10:42, 31 August 2017

2017-08-31T10:42:36Z

← Older revision		Revision as of 10:42, 31 August 2017
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		+	[[File:Berlintvtower1.jpg]]
		+
	= Introduction =		= Introduction =

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	The shaft of the tower tapers from 16 m diameter to 9 m, and is divided into 5 stages by mezzanine floors. These divisions can be spotted from the outside by the portholes.		The shaft of the tower tapers from 16 m diameter to 9 m, and is divided into 5 stages by mezzanine floors. These divisions can be spotted from the outside by the portholes.
		+
		+	[[File:Berlintvtower2.jpg]]

	The sphere was designed to be a visitor platform with a revolving restaurant in the middle. The sphere diameter measures 32 m (105 ft). The engineers were faced with considerable challenges when tackling the installation of the sphere at a height of 200 m.		The sphere was designed to be a visitor platform with a revolving restaurant in the middle. The sphere diameter measures 32 m (105 ft). The engineers were faced with considerable challenges when tackling the installation of the sphere at a height of 200 m.

Editor at 10:41, 31 August 2017

2017-08-31T10:41:47Z

← Older revision		Revision as of 10:41, 31 August 2017
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−	The Fernsehturm (English: Television Tower) is a [https://en.wikipedia.org/wiki/Television_tower television tower] in central [https://en.wikipedia.org/wiki/Berlin Berlin], [https://en.wikipedia.org/wiki/Germany Germany].	+	= Introduction =

−	~~Close to [https://en.wikipedia.org/wiki/Alexanderplatz Alexanderplatz]~~ in ~~[https://en.wikipedia.org/wiki/Mitte_(locality)~~ Berlin~~-Mitte]~~, ~~the tower was constructed between 1965 and~~ 1969 ~~by the government of the [https://en.wikipedia.org/wiki/East_Germany German Democratic Republic] (GDR). It was intended as both a symbol of communist power and of Berlin. It remains the latter today~~, as it ~~is easily visible throughout the central~~ and ~~some suburban districts~~ of Berlin.[https://en.wikipedia.org/wiki/Fernsehturm_Berlin#cite_note-1 [1]] With its height of 368 metres (including antenna) it is the [https://en.wikipedia.org/wiki/List_of_tallest_structures_in_Germany tallest structure in Germany~~], and the [https://en.wikipedia.org/wiki/List_of_tallest_freestanding_structures_in_the_world second tallest structure in the European Union]~~.	+	Fernsehturm Berlin is a television tower in central Berlin, Germany. Since its completion in 1969, it has become a prominent and iconic landmark of Germany.

−	The tower ~~has become one of~~ the ~~most prominent symbols~~ of the ~~country~~	+	The tower was constructed by the German Democratic Republic (DDR), and intended to be symbolic of Communist power and technical prowess, as well as the strength of East Germany.

−	The ~~fascination with technology and space travel are noticeable in~~ the ~~architecture;~~ the cross-section ~~of the TV tower resembles~~ a space rocket.	+	The architectural design of the tower demonstrates the influence of the Space Age and new technologies, with the cross-section being designed to resemble a space rocket, while the sphere was inspired by the Soviet Sputnik satellite.

−	The ~~original total height~~ of the tower ~~was 365 metres (1~~,~~198 ft), but~~ it ~~rose to 368 metres (1,207 ft) after the installation of~~ a ~~new antenna~~ in ~~1997.[https://en~~.~~wikipedia.org/wiki/Fernsehturm_Berlin#cite_note-~~city~~-2 [2]] The Fernsehturm is~~ the ~~fourth tallest freestanding structure in Europe~~	+	The location of the tower caused controversy, as it was deliberately centred in a historic medieval area of Berlin, which resulted in a large amount of destruction. A medieval church continues to stand next to the tower as a reminder of the old city that was demolished to make way for the construction work.

−	~~The sphere is~~ a ~~visitor platform and a [https://en.wikipedia.org/wiki/Revolving_restaurant revolving restaurant]~~ in ~~the middle~~ of ~~the sphere. The visitor platform~~, ~~also called panoramic floor~~, is ~~at a height of about 203 metres (666 ft) above~~ the ~~ground~~ and ~~visibility can reach 42 kilometres (26 mi) on a clear day~~.	+	With a height (including the antenna added in 1997) of 368 m (1,207 ft), it is the tallest structure in Germany and the fourth tallest freestanding structure in Europe.

−	* Diameter of the sphere 32 metres (105 ft)	+	= Design and construction =

		+	The original design of the slender, upward-thrusting tower stem was by the architect Hermann Henselmann, although it was built with the involvement of several East German architects and planners.

		+	Construction of the tower began in 1965. It used a building technique known as the 'climbing formwork' method, whereby the internal steel framework grows at a slightly faster rate than the outer reinforced concrete shaft. This shaft is erected around the steel framework.

−	~~In 1964~~, ~~[https://en~~.~~wikipedia.org/wiki/Walter_Ulbricht Walter Ulbricht], leader of~~ the ~~[https://en~~.~~wikipedia.org/wiki/Socialist_Unity_Party_of_Germany Socialist Unity Party] which governed East Germany, decided to allow the construction of a television tower~~	+	The shaft of the tower tapers from 16 m diameter to 9 m, and is divided into 5 stages by mezzanine floors. These divisions can be spotted from the outside by the portholes.

−	The ~~TV tower had several architects. Its former design~~ was ~~done by [https://en~~.~~wikipedia~~.~~org/wiki/Hermann_Henselmann Hermann Henselmann], and Jörg Streitparth. It was built by~~ the East German architects Fritz Dieter, Günter Franke and Werner Ahrendt between 1965-69.[https://en.wikipedia.org/wiki/Fernsehturm_Berlin#cite_note-city-2 [2]] Walter Herzog, Gerhard Kosel and Herbert Aust later also took part in the ~~planning~~.	+	The sphere was designed to be a visitor platform with a revolving restaurant in the middle. The sphere diameter measures 32 m (105 ft). The engineers were faced with considerable challenges when tackling the installation of the sphere at a height of 200 m.

−	~~The original design of the slender, upward-thrusting tower stem~~ was ~~created by~~ the ~~architect Hermann Henselmann. The~~ sphere of the ~~TV tower~~ was ~~intended as a reminescence of~~ the ~~Soviet Sputnik satellite~~.	+	Their first solution was single-shell construction, with the sphere's supporting steel framework being prefabricated on the ground. Cranes lifted the segments up to the required height where they were then attached to the circular platform. This also formed the completion of the concrete shaft. Their second solution following this, was to suspend the sphere on supporting tie rods, enhancing the impression that it is floating.

−	The ~~Tower was deliberately constructed in~~ the ~~center~~ of the ~~historic medieval center of Berlin~~, ~~resulting in~~ the ~~destruction~~ of ~~a huge portion of the historic center of the capital of Germany~~. ~~A medieval church stands next to the~~ tower as a ~~testament to the destruction of the old city~~. ~~Construction began on 4 August 1965. After four years of construction~~, ~~the Fernsehturm began test broadcasts on 3 October 1969, and it was officially inaugurated~~ four ~~days later on the GDR's National Day~~.	+	The maximum movement under wind pressure at the top of the tower is around 60 cm, with an oscillation frequency at the restaurant level of between 7-10 seconds in particularly strong winds. The tower was fitted with a mass damper, a metal rod weighing 1.5 tons suspended by three cables, with four hydraulic telescopic shock absorbers to accommodate this movement.

−	~~The tower was constructed employing the so~~-called climbing formwork building method. The internal steel framework always grows somewhat faster than the outer concrete shaft which is erected around the steel framework. The tower shaft tapers from 16 metres in diameter, to 9 metres and is divided into five stages by mezzanine floors. They are easy to identify from the outside at the portholes.<br />	+	= Post-completion =
−	~~<br />~~	+
−	The installation of the sphere at a height of 200 metres presented the engineers with a real quandary. Finally they decided on a single-shell construction. First the supporting steel framework of the sphere was prefabricated on the ground. The segments were raised up with cranes and were attached to the circular platform, which formed the completion ~~of the concrete shaft. Then the sphere was suspended on the supporting tie rods, which enhanced the impression for the observer, that the sphere appears to float.~~	+

		+	The tower was undergone several modernisation works since it was completed and become operational in 1969.

		+	In 1993, the interior was renovated, with upgraded transmission equipment from different TV stations being added. Two high-speed elevators (top speed 6 m/second) were installed, as well as one for services.

−	~~Between 1995-1996 general~~ sanitation works were ~~performed~~, ~~with renewal of the~~ technical installations, HVAC and fire protection system~~. Between 2011-2012 reforms covered the areas for visitors to the building of a “lobby bar” in the upper lobby and cloakroom transfer from the 203 to the lower lobby level~~.	+	General sanitation works were undertaken in 1995/96, and technical installations, HVAC and fire protection system renewed.

−	~~Even~~ with ~~strong winds oscillation of~~ the ~~structure is barely noticeable. At the top of the maximum movement is about 60cm, and the restaurant does not exceed 15cm,~~ with ~~an oscillation frequency between 7 and 10 seconds~~ with ~~strong winds. This slight movement is ensured by a mass damper, a metal rod that weighs 1.5tn suspended three cables. Its momentum is absorbed by four hydraulic telescopic shock absorbers~~.	+	The tower continues to be a popular tourist attraction, with a visitor platform in the sphere with panoramic views that can reach 26 miles on a day with clear visibility.

−	The centerpiece was built with structural steel and reinforced concrete. Both the structure and the surface of the sphere are made of steel, the skeleton with large beams and the housing 140 stainless steel segments.	+	= Find out more =

−	The combination of modern materials with a design of the sixties have given the Berlin TV Tower a completely new face. Since 1993, the tower has undergone restoration in stages. First, the interior was renovated shaft tower and upgraded transmission equipment from different television channels. We have also installed two high-speed elevators KONE, with a top speed of 6m /s, and one for services. The different floors have been renovated and refurbished to accommodate visitor traffic.	+	=== Related articles on Designing Buildings Wiki ===

−	[[Category:~~Articles_needing_more_work~~]]	+	* Alexander Tower, Berlin.
		+	* Building of the week series.
		+	* CN Tower.
		+	* Emley Moor transmitting station.
		+	* Küçük Çamlica TV Tower.
		+	* Space Needle.
		+	* Structure definition.
		+	* Super-slender.
		+	* Tallest buildings in the world.
		+	* The Bierpinsel, Berlin.
		+
		+	[[Category:Projects_and_case_studies]]

Editor: Created page with "The Fernsehturm (English: Television Tower) is a [https://en.wikipedia.org/wiki/Television_tower television tower] in central [https://en.wikipedia.org/wiki/Berlin Berlin], [http..."

2017-08-30T22:35:15Z

Created page with "The Fernsehturm (English: Television Tower) is a [https://en.wikipedia.org/wiki/Television_tower television tower] in central [https://en.wikipedia.org/wiki/Berlin Berlin], [http..."

New page

The Fernsehturm (English: Television Tower) is a [https://en.wikipedia.org/wiki/Television_tower television tower] in central [https://en.wikipedia.org/wiki/Berlin Berlin], [https://en.wikipedia.org/wiki/Germany Germany].

Close to [https://en.wikipedia.org/wiki/Alexanderplatz Alexanderplatz] in [https://en.wikipedia.org/wiki/Mitte_(locality) Berlin-Mitte], the tower was constructed between 1965 and 1969 by the government of the [https://en.wikipedia.org/wiki/East_Germany German Democratic Republic] (GDR). It was intended as both a symbol of communist power and of Berlin. It remains the latter today, as it is easily visible throughout the central and some suburban districts of Berlin.[https://en.wikipedia.org/wiki/Fernsehturm_Berlin#cite_note-1 [1]] With its height of 368 metres (including antenna) it is the [https://en.wikipedia.org/wiki/List_of_tallest_structures_in_Germany tallest structure in Germany], and the [https://en.wikipedia.org/wiki/List_of_tallest_freestanding_structures_in_the_world second tallest structure in the European Union].

The tower has become one of the most prominent symbols of the country

The fascination with technology and space travel are noticeable in the architecture; the cross-section of the TV tower resembles a space rocket.

The original total height of the tower was 365 metres (1,198 ft), but it rose to 368 metres (1,207 ft) after the installation of a new antenna in 1997.[https://en.wikipedia.org/wiki/Fernsehturm_Berlin#cite_note-city-2 [2]] The Fernsehturm is the fourth tallest freestanding structure in Europe

The sphere is a visitor platform and a [https://en.wikipedia.org/wiki/Revolving_restaurant revolving restaurant] in the middle of the sphere. The visitor platform, also called panoramic floor, is at a height of about 203 metres (666 ft) above the ground and visibility can reach 42 kilometres (26 mi) on a clear day.

* Diameter of the sphere 32 metres (105 ft)

In 1964, [https://en.wikipedia.org/wiki/Walter_Ulbricht Walter Ulbricht], leader of the [https://en.wikipedia.org/wiki/Socialist_Unity_Party_of_Germany Socialist Unity Party] which governed East Germany, decided to allow the construction of a television tower

The TV tower had several architects. Its former design was done by [https://en.wikipedia.org/wiki/Hermann_Henselmann Hermann Henselmann], and Jörg Streitparth. It was built by the East German architects Fritz Dieter, Günter Franke and Werner Ahrendt between 1965-69.[https://en.wikipedia.org/wiki/Fernsehturm_Berlin#cite_note-city-2 [2]] Walter Herzog, Gerhard Kosel and Herbert Aust later also took part in the planning.

The original design of the slender, upward-thrusting tower stem was created by the architect Hermann Henselmann. The sphere of the TV tower was intended as a reminescence of the Soviet Sputnik satellite.

The Tower was deliberately constructed in the center of the historic medieval center of Berlin, resulting in the destruction of a huge portion of the historic center of the capital of Germany. A medieval church stands next to the tower as a testament to the destruction of the old city. Construction began on 4 August 1965. After four years of construction, the Fernsehturm began test broadcasts on 3 October 1969, and it was officially inaugurated four days later on the GDR's National Day.

The tower was constructed employing the so-called climbing formwork building method. The internal steel framework always grows somewhat faster than the outer concrete shaft which is erected around the steel framework. The tower shaft tapers from 16 metres in diameter, to 9 metres and is divided into five stages by mezzanine floors. They are easy to identify from the outside at the portholes.<br />
<br />
The installation of the sphere at a height of 200 metres presented the engineers with a real quandary. Finally they decided on a single-shell construction. First the supporting steel framework of the sphere was prefabricated on the ground. The segments were raised up with cranes and were attached to the circular platform, which formed the completion of the concrete shaft. Then the sphere was suspended on the supporting tie rods, which enhanced the impression for the observer, that the sphere appears to float.

Between 1995-1996 general sanitation works were performed, with renewal of the technical installations, HVAC and fire protection system. Between 2011-2012 reforms covered the areas for visitors to the building of a “lobby bar” in the upper lobby and cloakroom transfer from the 203 to the lower lobby level.

Even with strong winds oscillation of the structure is barely noticeable. At the top of the maximum movement is about 60cm, and the restaurant does not exceed 15cm, with an oscillation frequency between 7 and 10 seconds with strong winds. This slight movement is ensured by a mass damper, a metal rod that weighs 1.5tn suspended three cables. Its momentum is absorbed by four hydraulic telescopic shock absorbers.

The centerpiece was built with structural steel and reinforced concrete. Both the structure and the surface of the sphere are made of steel, the skeleton with large beams and the housing 140 stainless steel segments.

The combination of modern materials with a design of the sixties have given the Berlin TV Tower a completely new face. Since 1993, the tower has undergone restoration in stages. First, the interior was renovated shaft tower and upgraded transmission equipment from different television channels. We have also installed two high-speed elevators KONE, with a top speed of 6m /s, and one for services. The different floors have been renovated and refurbished to accommodate visitor traffic.

[[Category:Articles_needing_more_work]]