Baloise skyscraper
| Baloise skyscraper | |
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Construction site of the Baloise high-rise, construction progress in June 2020 |
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| Basic data | |
| Place: | Basel , Switzerland |
| Construction time : | 2017-2020 |
| Opening: | 2020 (expected) |
| Status : | under construction |
| Architectural style : | Modern |
| Architects : | Miller & Maranta |
| Use / legal | |
| Usage : | office |
| Owner : | Baloise |
| Main tenant: | Movenpick Hotel |
| Client : | Baloise |
| Technical specifications | |
| Height : | 89 m |
| Floors : | 24 |
| Building material : | Reinforced concrete, steel |
| Building-costs: | 200 million francs |
Baloise Hochhaus is the name of an 89 meter high tower that has been under construction in Basel since 2017 . This is to be the highest within a newly emerging ensemble, which is part of the Baloise Park , which is also being created at the same time . Upon completion, it would be the third tallest skyscraper in Basel .
The architects of the building are the Swiss architects Miller & Maranta . The high-rise is to be used by a 264-room five-star hotel in the Mövenpick chain; the top seven floors will be used as offices. The Baloise skyscraper is scheduled to open in early 2020.
history
planning
On January 8, 2013, the insurer Bâloise presented the construction project to build the Baloise high-rise in the completely redesigned Baloise Park. On June 26, 2014, a revised version of the project was presented in which the construction project should be implemented faster than previously assumed. The step-by-step approach to demolishing the previous buildings should now be carried out in a single construction phase.
On November 25, 2014, the insurance company presented the winner of the architectural competition. The Baloise skyscraper is to be built by the Miller & Maranta architectural association.
The official start of construction was announced on October 20, 2015. The start of demolition on the area between Aeschengraben, Parkweg and Nauenstrasse began on November 2, 2015.
construction
After the 12 to 18 meter deep construction pit had already been dug in the course of 2017, the foundation construction began on January 20th . The side walls of the lowest storey were prepared from south to north with formwork walls while the slab formwork was being prepared at the same time. On February 13th, 141,500 cubic meters of building volume and 35,500 square meters of floor space had already been built, which corresponds to around 5% of the construction phase in Baloise Park. At the end of March, the underground car park and the future ballroom of the hotel tower were already in place. On May 8, the building's service platform was completed. A few days later, the shell construction of the basement was completed. Production of the floor slab for the high-rise could begin at the end of May . The work on the 350 cubic meter floor slab lasted until June.
On June 15, 2017, the foundation stone was laid for the start of the Baloise high-rise. Instead of a time capsule , a copper column designed by the artist Karsten Födinger was anchored in the floor of the building. The guests invited to the laying of the foundation stone were given a handwritten dedication on the column. It will remain visible in the basement of the building as a contemporary document. The foundation will be poured in the following weeks. To do this, an average of seven concrete mixers per day transport an amount of 52.5 cubic meters of concrete to the construction site. On December 18, 2017, crane 2 will be moved to a drive-through platform in the park path for logistical reasons. On January 1, 2018, a protective shield made of white perforated sheet metal will be placed around the high-rise to protect the construction project from the weather. This grows with the corresponding floors using a hydraulically climbing system. Storm Burglind , which raged a few days later , did not cause any damage to the construction site.
The sixth crane was erected at the end of March 2018, making two cranes available to each of the three construction sites. It is planned that the 89-meter-high shell of the Baloise skyscraper will be completed by September 2018. In May 2018 the window glazing started and in August the 18th of a total of 23 floors was built. In mid-September 2018, the 21st floor was built behind the Wild Shield and the corner elements that were still missing up to the 17th floor were to be installed. On October 15th, ten passenger lifts were delivered with a semi-trailer.
At lunchtime on October 24th, a fire broke out on the roof of the high-rise construction site. Four workers received medical treatment on suspicion of smoke inhalation. Around 150 employees had to be temporarily evacuated. At the end of November 2018, the high-rise ceiling was completed and the concreting work finished on November 26th, so that the topping-out ceremony could be celebrated on November 29th . By the end of 2018, 31,555 cubic meters of concrete and 4,764 tonnes of reinforcing steel had been processed and 212,805 hours worked.
After the topping-out ceremony at Baloise Park in February 2019, work on the interior of the high-rise began and, from June, the design of the main square.
Location and surroundings
The Baloise high-rise is located northeast of Centralbahnplatz, a central traffic junction in Basel; Basel SBB train station is on its south side . The building stands on a square plot of land which is bordered by the Aeschengraben in the west, Nauenstrasse in the south and Parkweg in the east. The entire property area is owned by the Baloise Group. The Baloise high-rise itself faces the Aeschengraben.
The multi-lane Nauenstrasse running south is a heavily trafficked west-east axis in the city center. The ramp of the eastern portal to the Nauentunnel, which allows the middle part of the Nauenstrasse to run underground, is located at the height of the neighboring 69-meter-high BIZ tower . With five lines of the Basel tram , the BIZ is also at a junction of local public transport. In the immediate vicinity of the Baloise skyscraper are the Hotel Schweizerhof, other administration buildings of the Basler Versicherung and, opposite the intersection, the Strasbourg monument and the Elisabethenanlage park.
Data
The Baloise high-rise has a total mass of around 60,000 tonnes. The reinforced concrete and the construction make up about 40,000 tons. 70% of the total mass is above ground, the rest underground. The floor experiences a compression of 55 tons per square meter due to the high-rise load.
Web links
Individual evidence
- ↑ Basler Zeitung : The high-rise boom and its limits , issue of January 12, 2013 (PDF)
- ↑ Shortened construction time for new Baloise headquarters (PDF), press release of the Baloise Group on June 26, 2014, accessed on August 15, 2017
- ↑ The winners of the architectural competition for Baloise Park have been announced (PDF), press release by the Baloise Group on November 25, 2014, accessed on August 15, 2017
- ↑ Start of construction in Baloise Park (PDF), press release of the Baloise Group on October 20, 2015, accessed on August 15, 2017
- ↑ Baloise lays the foundation stone for Baloise Park , Baloise Group press release, accessed on August 17, 2017
- ↑ Baloise Park Baumagazin, No. 5 (PDF), accessed on August 15, 2017
- ↑ City of Basel: Fire case , article from October 24, 2018, last viewed on October 25, 2018
- ↑ Media release from Steiner: Baloise-Park-Hochhaus celebrates topping-out , article from October 29, 2018, accessed on February 12, 2019
- ↑ Baloise Park Aufrichte February 2019 , (information at 1:15 minutes) Video of the Baloise Group from February 14, 2019, last accessed on February 18, 2019
- ↑ a b Baloise Park Baumagazin 9, May 2019 (PDF, p. 8), accessed on June 17, 2019
Coordinates: 47 ° 32 '56.8 " N , 7 ° 35' 31.4" E ; CH1903: six hundred and eleven thousand five hundred and fifty-one / 266,498