Water lily Potsdam

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Water lily Potsdam
Bank view with terrace area, 2008

Bank view with terrace area, 2008

Data
place Potsdam
builder Ulrich Müther
Client City of Potsdam
Architectural style Organic architecture
Construction year 1982/83
particularities
Self-supporting prestressed concrete roof made of eight radially arranged hypar shells

The Seerose Potsdam is a waterfront pavilion in Potsdam . The eight-fold curved roof structure in the form of a leaf rosette is a hypar shell construction and was designed by civil engineer Ulrich Müther . The building was placed under monument protection on December 21, 2004 by the Brandenburg State Monuments Office. The architectural style of the water lily is assigned to organic architecture by architecture experts.

history

The former café and today's restaurant Seerose was built from 1982 to 1983 at Breiten Straße 28 on the banks of the Neustädter Havelbucht . The Potsdam Housing Combination (WBK) deliberately placed the riverside pavilion in the vicinity of the historical and structurally “exotic” steam engine house in the form of a mosque , which was built by Ludwig Persius from 1841–43 to water the pond fountains of Sanssouci Palace . To further upgrade the residential area, the installation of a 30 m high water fountain in the Havel Bay was planned, but this was discontinued because at that time the inlet of a mixed water system (untreated dirty water) was located in the vicinity .

The interior design of the water lily came from the Potsdam architect Dieter Ahting. “The interior used to be an individually designed dining area within the scope of what was possible at the time, as it was only built in a few places in Potsdam.” Potsdam art blacksmith Christian Roehl (1940–2013) designed many structural details for the café. This interior was largely removed by the owner of Sandbar Catering GmbH around 2013. To mark its 30th anniversary, he rebuilt the inside of the restaurant and renovated it without the approval of the monument office. This was followed by a series of arguments between the two parties. Since it opened in 1983, there have been various pubs, restaurants and bars in the building, which has since been empty (1994–96, 2006–08).

In June 2006 the then owner TLG Immobilien AG offered the building for sale because they were not prepared to pay for the renovation needs that had accrued. In a lecture by the Bund Deutscher Baumeister (BDB) in October 2006, the participating architect Ahting warned against the water lily's deterioration .

Building

The roof of the restaurant consists of eight double-curved, six-centimeter-thin hypar shells, "light and flowing like fabric, it makes the heavy mass appear." Mueller's architectural model and inspiration for the water lily was for him Félix Candela's restaurant Los Manantiales [= the sources ] in Xochimilco , Mexico City (1958). Candela's building has a span of 32.47 m, Mueller's water lily extends over a diameter of 23 m. In contrast to Candela's building, Müther left a light shaft open in the middle of the roof. Half of the interior space is divided into a restaurant area and a supply wing in accordance with the HO restaurant ordinance.

At the lowest points, the individual shells rest on eight concrete foundations. Below the building, the shells on these bases are mutually stable by means of tie rods and steel tension straps ("bundle tendons"). The lower roof valleys were reinforced with steel ribs to better support the weight of the overhanging roof edges. The inner walls have no supporting function, as the hypar shells are self-supporting. Because of the soft subsoil near the shore, the building foundation was compacted with 104 concrete piles that are between 16 and 18 m long. This also eliminated the possibility of a basement for musical events.

The terrace on the Havel 's bay shore about 200 square meters. An in-house boat dock offers passenger ships the opportunity to moor.

gallery

literature

  • Dieter Ahting: Café Seerose in Potsdam. In: Architektur der DDR , Volume 25, 1986, ISSN  0323-3413 , pp. 552f.
  • Catrin During & Albrecht Ecke: Built! Architecture guide Potsdam . 1st edition. Lukas-Verlag, Berlin 2008, ISBN 978-3-936872-90-3 , p. 175 .
  • Tanja Seeböck: Swings in concrete. Ulrich Müther's shell structures. Thomas Helms Verlag, Schwerin 2016, ISBN 978-3-944033-02-0 , p. 183; 190; 371 [data sheet 60].
  • Sabine Ambrosius, Tanja Seeböck: Potsdam, Café Seerose. A shell construction by Dieter Ahting and Ulrich Müther. In: Brandenburgische Denkmalpflege , BLDAM (Hrsg.), 2016, 2nd year, NF, ISSN  0942-3397 , Issue 2, pp. 58-68, full text online , (PDF; 1.26 MB).

Web links

Commons : Seerose Potsdam  - Collection of images

Individual evidence

  1. a b c d e f Sabine Ambrosius, Tanja Seeböck: Potsdam, Café Seerose. A shell construction by Dieter Ahting and Ulrich Müther. In: Brandenburgische Denkmalpflege , 2016, (PDF; 1.26 MB).
  2. Press kit: Architectural icons by Ulrich Müther on Rügen. In: Wüstenrot Foundation / Artifact Culture Concepts , April 25, 2018, (PDF; 727 kB); Tanja Seeböck: "This lightness and the utopian, organic design language could be realized much more freely with the small architectures than with Mueller's large buildings, which were always tailored to a specific functional requirement ..." (p. 12).
    Müther's architectural model Los Manantiales is also referred to as organic architecture, cf. Allison Lee Palmer, The A to Z of Architecture , 2009, ISBN 978-0-8108-6895-3 , p. 81, limited preview in Google Book Search.
  3. a b c d Seeböck, Schwünge in Beton , p. 371.
  4. Aerial photo: water lily with steam engine house in the background. In: Potsdam Tourismus , March 23, 2019, accessed on May 20, 2020.
  5. Nadine Fabian: Mourning the blacksmith Christian Roehl. Thoughts in steel. In: Märkische Allgemeine , April 8, 2013.
  6. biography. In: christianroehl-zeichen.de , accessed on May 20, 2020.
  7. ^ Henri Kramer: "Seerose" in the Havel Bay. Judge reprimands black buildings. In: Potsdamer Latest News ( PNN ), June 6, 2015.
  8. Christine Fratzke: Negotiations instead of a court date . Confidential discussions about "water lily" black buildings. In: PNN , September 12, 2015.
  9. dpa / PNN: An airy and light building. Exhibition about the architect of the "water lily". In: PNN , July 21, 2014.
  10. Günter Schenke: "Seerose" is threatened with decay. In: PNN , October 9, 2006.
  11. Sophia Grützmann: beach flair Havel: Café Lily in Potsdam. In: reiseland-brandenburg.de , September 17, 2014.
  12. Michelle Miller: AD Classics: Los Manantiales / Felix Candela. In: ArchDaily.com , ISSN  0719-8884 , April 14, 2014, (English).
  13. Seeböck, Schwünge in Beton , p. 183.
  14. ^ The "Seerose" in the Neustädter Havelbucht Potsdam. In: reiseland-brandenburg.de , 2016, accessed on May 20, 2020.
  15. Aerial photo: The Neustädter Havel Bay in Potsdam near Brandenburg. In: foto.aero  / Peter Schubert, April 14, 2014.

Coordinates: 52 ° 23 '44.9 "  N , 13 ° 2' 46.6"  E