Great projects are carried out in collaboration:
Technopolis Ruoholahti, 3rd phase, Helsinki, Finland
The third phase of Technopolis Ruoholahti involves the construction of a multi-user office building and underground car park that forms part of the local parking facility. The first floor also houses shared spaces, including reception areas, a cafeteria and meeting rooms.
Information on the project:
- Gross floor area: 12,501 m² (heated area) + 3,799 m² (unheated area). Total volume 65,898 m³
- Total cost 32 million euros
Gösta’s pavilion, Mänttä
An international design competition was held for Serlachius Museum Gösta’s extension in 2010–2011.
The building houses three exhibition spaces (ranging in area from 100 m² to 600 m²), a reception hall, a museum shop and restaurant, offices for the personnel, and appropriate storage and restoration facilities for the museum’s works of art.
The extension is connected to the old manor building with a covered glass corridor. Glulam beams, which are visible in the external and internal walls, serve as the basic structures. Glass and wood surfaces alternate in the façade.
Gösta’s pavilion was selected as Wooden Structure of the Year in 2014.
Cost: 20 million euros
Gross floor area: 5,700 m²
Tampere Hall, Tampere
The project for extension and renovation of 1990’s Tampere Hall involved radical changes in the functions of this concert and congress centre. In the project, a 400-seat conference room, which can be divided in two, was constructed, along with a 230-seat studio-style auditorium and rehearsal premises for Tampere Philharmonic Orchestra and its musicians. Also, a new Moomin Museum was built.
Because of the tight schedule for the first stage of the project, the extension had to be light in structure while taking into account traffic noise in the area. In the design of the soundproofing, particular attention was paid to the positioning of the extension, which was built partly above and between existing structures, and to the main maintenance route, which passes underneath the building.
Cost: 12.6 million euros
Net internal area: 6,300 m²
Metso main library, Tampere
Built in 1986, Metso, the internationally renowned Tampere main library, is an important feature of the local cityscape. Because of its irregular shape, the library’s structures are varied, and each is unique. Back in 1978, the entry by architects Raili and Reima Pietilä won in a design competition arranged for the city’s new main library.
This building was renovated in four stages, the last of which was completed in 2017. In conjunction with the renovation, the library’s functions and acoustic properties were brought up to date and adapted to meet the needs of current activities. In addition, the basement space was converted to library use.
Cost: 11.5 million euros
Gross floor area: 11,160 m²
Completion: 1986, 2017
Turku City Theatre
The Turku City Theatre project involved renovation and extension. The most visible change brought by the extension was the addition of a three-storey stage at the back. The personnel premises were moved to a new location, and a kitchen was built. The workshop premises, which were in need of work, were renovated and extended, along with the spaces for technical systems, the prop area, and the costume and scene shop. A new space was built for the Sopukka stage, which had to be moved to make way for the Pikkolo stage. In addition, the dressing rooms for actors were refurbished.
Cost: 45 million euros
Gross floor area: 14,525 m², volume: 76,467 m³
Logomo’s movable seating, Turku
The functional adaptability of the Logomo event centre is based on a seating system that can be moved with the assistance of air cushions. The performance hall itself and the lobby are part of the same open space, and their relative sizes are adjusted via the positioning of the seating system, which forms an acoustic barrier. This flexible system enables the creation of three halls, of differing capacities: an auditorium for 1,100 people, a theatre hall with seating for 1,300, and a concert hall on a single level with space for 3,500 people.
Gross floor area: 8,800 m²
Lempäälä Hall is the spearhead of Nova Lempäälä, the municipal centre’s development project. Lempäälä Hall is a structural entity that is home to a new main library, municipal and church service and office premises, a youth centre, a restaurant, a summer kiosk, and rental office and business premises, along with a 300-car parking facility.
Because of the diverse functions and spaces it houses and construction work underway on the surrounding plots, the complex presents a challenging work site in terms of timetables and logistics. The complex is connected at several points to a pedestrian and cycling bridge that crosses the railway and to a pedestrian and cycling route that runs amid the buildings, presenting additional challenges.
Cost: 29 million euros (estimate)
Gross floor area: 18,600 m²
Projected completion: 2020
Hilton Helsinki Airport hotel
A high-quality hotel for Helsinki Airport, next to a terminal, was designed and built to meet the strictest quality criteria. The hotel’s location in the area of a busy international airport posed numerous challenges for the design and realisation, which were solved by means of seamless collaboration.
The hotel has 330 rooms, 12 meeting rooms, a reception hall, a restaurant, sauna facilities, a gym, and other facilities.
Hilton Helsinki Airport was selected as Europe’s best Hilton hotel in a customer satisfaction survey arranged by the chain in 2016. It was awarded Hilton’s Make It Right Highest SALT prize also.
Cost: 70 million euros
Gross floor area: 17,000 m² + 3,765 m²
Completion: 2007, extension in 2011
Scandic Helsinki Airport
A hotel with 150 rooms was designed and built in an old office building located at Helsinki Airport. Its location between the Hilton Helsinki Airport hotel and Terminal 2 makes it an ideal option for travellers staying the night. It is also located close to a railway station. The hotel is connected to the terminal by a covered walkway.
In the design, particular attention was paid to damp control. Because of the air traffic noise, the project involved challenging acoustics requirements.
The design and construction project was complicated by the fact that several functions, including aerial navigation, health services, and police operations, were active on the premises throughout the project. Of the old structures, only the load-bearing elements and the building envelope were preserved.
Floor area: 8,199 m²
Hotel Indigo Helsinki – Boulevard, Helsinki
The renovation of Hotel Indigo at Bulevardi 26 involved the demolition and reconstruction of the façade. Of the original structures, only the in-situ cast beam-and-pillar frame built in 1969 was preserved. In parts, the frame had to be dismantled to create space for modern technical systems. The hotel is extremely energy-efficient.
The City of Helsinki awarded the façade project its Rose for Building Award in 2014.
Cost: 13 million euros
Gross floor area: 7,600 m²
Ratina shopping centre, Tampere
The Ratina shopping centre is Tampere’s largest retail and recreation centre. Formed by three buildings, Ratina livens up the southern part of the city centre. The Ratina shopping centre employs hundreds of people and houses more than 150 shops, restaurants, and other businesses.
Ratina is a tour de force of steel structures’ design and our largest construction-management project to date. Steel structures for exceptionally challenging applications were used for the three buildings that form the complex. The structural engineering project was a result of our expertise in renovation engineering, bridge and special-structure design, and industrial and element engineering.
Cost: 240 million euros
Floor area: 100,000 m²
Aurora school, Espoo
The Aurora school won an award for being the most energy-efficient public building in Espoo. This three-storey new-build school represents a nearly zero-energy building.
In addition to structural engineering, we were responsible for the inspection of approval documents for construction products (architectural, construction, and HVAC).
Cost: 21 million euros
Gross floor area: 7,300 m²
Willa shopping centre, Hyvinkää
The Willa shopping centre, in Hyvinkää, is a modern commercial hub for fashion and specialist retail, complete with a wide range of restaurant services. We designed the foundation structures required for the complex’s challenging demands, the connections between the buildings, and the eye-catching frame and roof structures.
Willa is Finland’s sixth largest shopping centre.
Cost: 80 million euros
Gross floor area: 54,000 m²
Kaivotalo commercial centre, Helsinki
Located in the centre of Helsinki, the Kaivokäytävä passageway presented a challenging renovation site because the pedestrian traffic along it could not be stopped during the work. Almost 20,000 people use the route daily.
All changes to the frame were carried out with in-situ cast steel and concrete structures. Kaivotalo’s car ramp leading from the ground level to the basement was replaced with a new intermediate floor that forms a passageway running behind the Kaivokäytävä covered passage’s shops. Business premises were built on the second floor, which is served by a new escalator leading up from Kaivokäytävä. All the surface structures, including the glass walls, were replaced. The glass ceiling and surrounding ceiling structures were replaced, apart from the steel frame. New floor structures offered additional floor space for the second-floor shops.
Tesoma’s shopping and service centre Westeri, Tampere
The long-awaited shopping and service centre Westeri opened its doors in the district of Tesoma in spring 2018. The first businesses to move to the centre were a supermarket and three restaurants. In the second stage of the project, a library, youth centre, dental clinic, maternity clinic, and health centre will be built.
Additionally, a 130-space parking hall was designed for the centre.
Cost: 30 million euros
Gross floor area: 15,714 m² + parking facility with 130 spaces
Mercedes-Benz Airport, located at Helsinki Airport, is Veho’s flagship store. It is among the Nordic region’s most modern and advanced shops for this brand – not only with regard to products and services but also in terms of the physical setting. Numerous cost-efficient, tried-and-tested structural solutions were applied in the design of the premises. All of the shop’s structures were designed by means of data modelling.
Cost: 30 million euros
Gross floor area: 11,000 m²
Autotuonti building, Tampere
Constructed in 1937, the façade of the Autotuonti property, located on Vuolteenkatu, in the Tampere city centre, is under heritage protection. The property was renovated to become a part of the modern Ratina shopping centre, with an extension added to it. The shopping centre extends about 13 metres below the level of the Autotuonti building’s foundation. The interior parts of the building’s old frame and their foundations were demolished because surveys indicated that they did not meet modern strength requirements. The new frame is made of steel composite pillars and hollow-core slabs.
Gross floor area: 11,176 m²
Meripaviljonki is a unique floating restaurant building, with an underwater pile structure that enables it to adjust to changes in the sea level (from -0.9 metres to 2.5 metres). The design, which draws inspiration from the shape of the water lily, was achieved with 3D modelling, which was used to fit together the building’s various steel structures, built on different levels. Meripaviljonki is the only floating public building in Helsinki.
Changes in weather and ice loads were taken into account in the design. The product compliance of the unique glass façade was verified with a work-site-specific expert statement.
The City of Helsinki awarded the project its Rose for Building Award in 2016.
K-Citymarket supermarket, Sastamala
Sastamala’s new K-Citymarket was built in line with the company’s latest concept and offers the region’s most extensive range of products.
Cost: 18 million euros
Net internal area: 8,300 m²
A Tampere property that used to house an Anttila department store was converted into multi-user office premises for which particular attention was paid to good acoustics. Partitions, carpets, sound-dampening wall and ceiling materials, and a sound-masking system were used as acoustics solutions. In addition, the space features several meeting and call-taking rooms.
Gross floor area: 2,700 m²
KOY Alberga, Espoo
The office building shown, in Leppävaara, houses also AINS Group’s offices. This building, with a steel composite frame, is among Finland’s first buildings in energy class A, and it has been granted the BREEAM rating Very Good.
Its design was influenced by the one-sided underground pressure caused by Leppävaarankatu and the Monikonpuro underground stream that runs beneath the basement’s access tunnel. About 3 km of railway tunnel, a car tunnel, 3 km of rescue and maintenance tunnel, and up to 50 m of deep shafts lie under the building. The deepest structures extend 50 metres below sea level.
The building was voted Finland’s pleasantest and most energy-efficient office space in 2014.
Cost: approx. 30 million euros
Gross floor area: 13,000 m²
City Hall, Vantaa
Vantaa City Hall was renovated, and a new council meeting room was built in connection with it. In one part of the project, children’s art centre Pessi, housed in a building originally designed as a municipal library, was renovated. City Hall, completed in 1957, and the library, built in 1958, were originally designed by architects Olli and Eija Saijonmaa.
The wood pile foundation was reinforced by jet grouting. Both structures are protected buildings in the city plan.
Volume: 82,500 m³, floor area: 6,054 m² for City Hall, 620 m² for the council room
Neste Sandviken reception and meeting premises, Porvoo
In Porvoo, reception and accommodation premises and outbuildings completed in the 1970s were renovated and converted to meeting and reception use. In addition to the extensive renovation work, work was done to add a small extension to the main building. The accommodation premises were adapted for conference and training use. The profile of this building envelope’s roof structures was changed and façade materials replaced.
The control and management of surface water on the rocky plot were improved, yards were extensively redesigned, and a new car park was built. Outbuildings were renovated or replaced with new ones.
Non-Schengen area, Helsinki Airport
The non-Schengen section of the Helsinki airport represented a particularly challenging design and construction site. The building’s lowest two floors house luggage-handling facilities, while the top floor holds the passenger spaces. The bottom floor, which is subject to underground pressure, has post-tensioned rigid frame structures. The intermediate floor is made from elements. The frame of the passenger floor uses column-braced round composite pillars with triangular trusses installed on top.
In addition, a 350-metre-long luggage tunnel and numerous other connecting structures were designed.
The project was granted an honourable mention in the Tekla BIM Awards in 2009 and the RIL award in the same year.
Cost: 154 million euros
Gross floor area: 43,900 m²
Expansion of Terminal 1, Helsinki Airport
The expansion of Helsinki Airport’s Terminal 1 increased the airport’s capacity and improved customer experience and travel conditions.
Connecting structures and continuous air travel operations on the work site brought their own challenges to the design work.
Gross floor area: 16,000 m²