However, the Draugen platform only had one shaft. Standing in the water alongside the dock, these pillars were intended to imitate the shafts of the GBS which the topsides would rest on – as with the Statfjord and Gullfaks structures. Fotnote: Statfjord industrial heritage – Building the Statfjord B topside Their quarters section was almost 23 metres tall and contained 130 berths.ĭuring earlier projects, the Rosenberg yard – part of the Moss Rosenberg Verft (MRV) company – had used four specially built concrete cylinders to support the topsides structure. The topsides were 79 metres long, 59 metres wide and 15 metres high (figure 1). That in turn proved appropriate for a concrete gravity base structure (GBS) with a single support shaft, since it would keep stability during towout within safety requirements. On the contrary, it has added the structure to Stavanger’s list of 58 protected buildings which have received their own plaque.The topsides were originally intended for a floating production platform, which meant they were much lighter than a traditional complex used on a fixed installation. The city council has dropped the demand to demolish the tower. Photo: Norsk Fly og Flyfoto A/S/Norwegian Petroleum Museum det skjeve tårn i stavanger, engelsk The viewing platform runs all around the building and provides a great view. It was even leased by the city to the Hinna congregation for a time, and many church services were held there until 2010. In October 2007, the tower was opened to the general public. It subsequently also accommodated technical meetings and festivities. The conference facility was much used by NC until it ceased operations in Hinnavågen in 1994. Photo: Norsk Fly og Flyfoto A/S/Norwegian Petroleum MuseumĪ conference auditorium was also installed on top of the tower, with seating for 100 people and a viewing platform circling the whole building which had great views of the fjord landscape. det skjeve tårn i stavanger, konferansesal, engelsk Conference hall that seats up to 100 people. Two were actually implemented, with the big internal void used as a cement store for many years. Pursuant to the permit from the City of Stavanger, the Leaning Tower was planned as a temporary structure and equipped with channels for demolition charges.īut NC saw opportunities, and a number of ideas emerged. It was right at the edge of the possible at that time. The latter provided greater confidence that slipforming could be done with large variations in inclination, dimensions and geometry. This configuration called for a demanding slipforming operation, which clearly drew on all NC’s earlier experience – including construction of the Leaning Tower. The wall thickness of the shaft varied from 160 to 70 metres. The Draugen concrete gravity base structure (GBS) also had a challenging geometry, with the monotower support shaft’s diameter varying from 44.5 metres at its base to 15 at the waterline.įrom there, continuous slipforming carried it up to a rectangular top section measuring 25 by 25 metres. det skjeve tårn i stavanger, bygging, betongunderstell, engelsk Photo: Eivind Wolff/Norwegian Petroleum Museum With the top eight metres completed in lightweight concrete, it stands at an angle of 16 degrees from the vertical – compared with “just” four degrees for the leaning tower at Pisa in Italy. The completed tower stood 50 metres high, had an external diameter which varied between 16 and 23 metres and a wall thickness ranging from 75 to 100 centimetres. In addition, the company wanted to develop a new system for conical inclined slipforming and try it out in practice on a large scale. This trial structure was erected in February 1984 to demonstrate that slipforming could be used to build a large inclined structure with a variable diameter.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |