{"id":36332,"date":"2022-10-18T15:49:36","date_gmt":"2022-10-18T12:49:36","guid":{"rendered":"https:\/\/www.sweco.fi\/?post_type=showroom_cpt&p=36332"},"modified":"2022-12-05T18:35:14","modified_gmt":"2022-12-05T16:35:14","slug":"hamburger-bors-2","status":"publish","type":"showroom_cpt","link":"https:\/\/www.sweco.fi\/en\/projects\/hamburger-bors-2\/","title":{"rendered":"Hamburger B\u00f6rs"},"content":{"rendered":"
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Hamburger B\u00f6rs<\/h1>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/div>\n\t\n\t\t\n\t<\/section>\n\n
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Hamburger B\u00f6rs, a landmark in the centre of Turku, underwent a careful and controlled renovation<\/h1>\n

There are not many landmarks in the centre of Turku that are as valuable and beloved by the city\u2019s residents as Hamburger B\u00f6rs, which has stood on the edge of the Market Square since 1885. The structural engineering of this renovated Scandic hotel relied on cost-effective and reasonably feasible solutions.<\/p>\n

The official name of Hamburger B\u00f6rs has changed over the decades, and there have been many different types of hotels and restaurants on the site. In the 1970s, the original Art Nouveau hotel building was demolished and replaced by a new one built by SOK. The oldest part, completed in 1885, is protected. B\u00f6rs has been owned by LocalTapiola since 1979.<\/p>\n

In 2018, the hotel\u2019s history gained a new chapter when parts of the old B\u00f6rs were demolished, the oldest part was renovated and an additional wing was built. In addition to more than 270\u00a0rooms, the 10-storey hotel includes restaurants and business premises, a multistorey car park and a rooftop bar located on the ninth floor above the ventilation machine room. The high-profile project was implemented as a YIT project management contract, for which a familiar partner was selected to carry out the implementation planning.<\/p>\n

\u201cWorking with the Sweco team has always gone well, without any need to fight over schedules or additional work invoices,\u201d says Juha Kohonen<\/strong>, Project Development Manager at YIT Finland Ltd. According to him, Sweco\u2019s structural engineers always offer a good set of options. \u201cOnce again, Sweco gave us some solid initial ideas that were good to build on.\u201d<\/p>\n

The new B\u00f6rs was built on existing piles<\/h4>\n

From the outset, it was known that the location of the site would be challenging. Eerikinkatu had heavy traffic during the construction phase, and the area around the old B\u00f6rs with its deciduous trees had to be carefully protected. Space on the site was limited, and the clay soil made foundation conditions difficult. Aki Luntamo<\/strong>, Department Manager for Structural Engineering at Sweco, says that it would have been unwise to try anything too new and uncertain on a site like B\u00f6rs. \u201cWe made use of proven and reasonably feasible solutions.\u201d<\/p>\n

The largest cost savings came from the frame solution for the new building. At Sweco\u2019s suggestion, the frame was constructed with concrete elements with a column and beam structure. \u201cOriginally, the frame was designed as a steel structure, which would have been a much more expensive option,\u201d says Kohonen. The solution worked, even though the load-bearing lines could not be implemented in a completely straightforward manner and exceptional solutions were needed for the concrete walls between the suites.<\/p>\n

The old wing on Eerikinkatu was demolished down to its foundation to make way for the new building. Time, money and materials were saved by being able to erect the new building on top of the old piles. \u201cOf course, the piles were not positioned optimally, so the loads of the new frame were transferred to the foundation through a thick base floor slab,\u201d says Luntamo.<\/p>\n

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The pitched sheet metal roof was implemented with prefabricated elements<\/h4>\n

Looking at B\u00f6rs\u2019s facade, the eye is drawn to the beautiful pitched roof. The wooden roof elements underneath were prefabricated at YIT\u2019s factory. This allowed the building to be protected from the weather in just four days. The element design of the pitched roof was carried out with the help of Sweco\u2019s experts in wooden roof structures. Kohonen saw this as a huge bonus. \u201cIt all went very well and saved us time and money.\u201d<\/p>\n

In the renovation of the old B\u00f6rs, the trickiest challenge were the steel structures of the existing terrace. The old terrace was dismantled and stored for the duration of the renovation, but in the process the old steel parts proved to be so worn out that they were no longer safe to use. \u201cThis led us to design new load-bearing steel structures for the terrace based on the old ones,\u201d says Luntamo. \u201cThe end result looks so good that not many people would guess that the structures are new.\u201d<\/p>\n

It now warms his heart to walk past the renovated B\u00f6rs and see the finished result. Even the most critical members of his own family have praised the site. \u201cB\u00f6rs is such a major and well-known landmark in Turku that even my wife and daughters appreciate this project!\u201d<\/p>\n\t\t<\/div>\n\t<\/div>\n<\/div>\n<\/section>\n\n\n

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