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OPERA
 
 
Oodi Helsingin keskustakirjasto
Biblioteca Centrale di Helsinki
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PROGETTISTA
 
 
ALA Architects
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CONTESTO
 
Vista dall'alto
Helsinki Central Library, Oodi, ALA Architects, Helsinki, Finland, Ramboll Finland
Rapporto con il luogo
Helsinki Central Library, Oodi, ALA Architects, Helsinki, Finland, Ramboll Finland
Valenza dell'edificio nel territorio e nella città
Helsinki Central Library, Oodi, ALA Architects, Helsinki, Finland, Ramboll Finland
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DESCRIZIONE
 
Architectural concept
Helsinki Central Library, Oodi, ALA Architects, Helsinki, Finland, Ramboll FinlandOodi represents a new era of libraries. The newly completed building in the heart of Helsinki consists almost entirely of public space and offers a wide selection of services. It will become the new central point for the city’s impressive public library network.

The design divides the functions of the library into three distinct levels: an active ground floor, a peaceful upper floor, and an enclosed in-between volume containing the more specific functions. This concept has been developed into an arching form that invites people to utilize the spaces and services underneath, inside and on top of it. The resulting building is an inspiring and highly functional addition to the urban life of Helsinki and the Töölönlahti area.

Helsinki Central Library, Oodi, ALA Architects, Helsinki, Finland, Ramboll FinlandThe Kansalaistori square (“Citizens’ Square”) across the street from the Parliament House seamlessly continues inside the ground floor level of the library building. The flexible spaces are suitable for both small events and large happenings. The movie theater and the multipurpose hall can be used as part of the open lobby space or separated off to cater for specific events. Walking through the ground floor offers a quick glimpse at the services available in the building. The sculptural wooden surface arches over the ground floor areas as a dramatic bridge-like structure. This innovative structural solution has enabled the creation of a column free public space to maximize the accessibility and visibility of the program.

The “Book Heaven” on the top floor, is a vast open landscape topped with an undulating cloud like white ceiling. Here the best features of the modernist library meet the possibilities provided by up-to-date technologies. A calm, serene atmosphere invites visitors to read, learn, think, and to enjoy themselves. From this level visitors can enjoy an unobstructed 360-degree panorama view of the city center.

The middle floor, the “Attic”, consists of flexible irregularly shaped rooms, nooks and corners inhabiting the spaces between the trusses of the bridge structure. The enclosed spaces are designed to accommodate both noisy and quiet activities. The stepped seating in the open central area of this floor is the result of the form of the cantilevering, twisting west façade.

By opening directly to the surrounding cityscape and by dissolving the border between indoor and outdoor areas, the building engages directly with the Töölönlahti area. The large foyer and the glass-walled multi-purpose hall on ground level act as indoor extensions of the outdoor spaces.

The arching wooden volume creates an entrance canopy over the Kansalaistori square forming a covered outdoor space that expands the building’s functions such as the ground level restaurant to the square. The large public terrace on top of the canopy doubles the amount of public outdoor space available for library visitors and creates a new destination where people can meet and observe the city below.

There will be three public entrances in the building: one in the south for the main pedestrian flow from the direction of the Central Railway Station, one next to the Kansalaistori square to the west of the building shielded by the overhanging canopy, as well as one for the visitors to the family library and the movie theater in the northeastern corner.

The spaces for maintenance and library logistics are located at basement level. The administration and storage spaces are kept to the minimum on the publicly accessed levels to maximize the open and accessible nature of the library. The administrative and storage functions of Helsinki Public Library will remain at the main library in the nearby Pasila district.

Helsinki Central Library, Oodi, ALA Architects, Helsinki, Finland, Ramboll FinlandLibrary operations are statutory in Finland. Basic library services are free of charge and freely available to everyone. The new library will be at the forefront of the renewal of the city’s library services. In addition to the core operations, there will be a wide range of services available inside the building alongside an abundance of lounge spaces and auxiliary services that support the operations such as Helsinki Info, the City of Helsinki’s information center; Europa Experience, the center for EU related information; and Kino Regina, the National Audiovisual Institute’s movie theater. In terms of services offered, the new library, a public space open seven days a week, will be the largest public library in the Helsinki metropolitan area, and will most certainly also become the metropolitan area’s most popular spot for returns and reservations. The library is expected to attract 10,000 visitors per day and 2.5 million visitors per year.

The library will enliven and diversify the new urban environment created in the Töölönlahti area. It will offer activities and experiences for all ages. There will be plenty of spaces that enable people to gather and spend time together, free of charge. The role of the library’s clients will evolve from passive media users to active agents, participants and content producers. As a non-commercial open public space, the new Central Library will act as Helsinki residents’ common living room, work space and learning environment.
Technical details
Helsinki Central Library, Oodi, ALA Architects, Helsinki, Finland, Ramboll FinlandOodi’s spatial concept based on three individual public floors is executed by building the library as an inhabited, asymmetrical bridge spanning over 100 meters over the open ground floor space. The bridge structure consisting of steel trusses and beams is supported by two massive steel arches, tensioned together with a reinforced concrete tension slab. The innovative structural solution has enabled both the construction of the flexible column-free interior spaces and the possibility for the construction of a future road tunnel under the site. Secondary steel trusses support the cantilevering balcony and roof canopy asymmetrically from the arch structure, forming a unique structural design to accommodate both permanent and temporary functions for both the library and the public realm.

Helsinki Central Library, Oodi, ALA Architects, Helsinki, Finland, Ramboll FinlandOodi has been built using local materials and with local climate conditions in mind. The wooden façade is made from pre-fabricated elements. 33-millimeter-thick Finnish high- quality spruce has been used for the cladding. A specific grading and quality control system was developed for the timber, the sawing and the treatment of the slats. The complex curved geometry was designed and manufactured using algorithm-aided parametric 3D design methods in order to achieve the required precision. The appearance of the façade will develop over the years towards a deeper, richer version of its initial hue.

The design of the building envelope is intrinsic to the passive energy approach adopted by the project team. Detailed analysis of the façade performance has informed the environmental solutions and has allowed the team to minimize the requirement for mechanical environmental control systems, which facilitates the highly flexible architectural solution. The glass facades allow for large amounts of functional daylight in the public areas, reducing the use of artificial light and enhancing the quality of the interior spaces as a multifunctional citizen’s forum.

The carefully planned placement and optimization of building services has enabled the flexibility of the spatial arrangements. All public levels of the building are equipped with access floors to allow for changes in use during the estimated 150-year life span of the building.

The library building will be extremely energy efficient. Its energy consumption level is that of a nearly Zero Energy Building (nZEB). This is mostly due to the efficiency of the building services. The material efficiency of the building has benefited among other things from the use of wood in the exterior cladding.

Building information modeling was used in both architectural and engineering design, as well as in checking the compatibility of the designs. Building information model will also be utilized for maintenance.
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Helsinki Central Library, Oodi, ALA Architects, Helsinki, Finland, Ramboll Finland
About the project as part of the Finnish Centenary celebrations 2017-2018
Helsinki Central Library, Oodi, ALA Architects, Helsinki, Finland, Ramboll FinlandThe new central library is the celebratory project of the 100th anniversary of the independence of Finland. The open international two-stage architectural competition was launched in January 2012, and attracted 544 entries from all over the world. The six entries selected for further development for the second phase of the competition were announced in November 2012 and ALA Architects’ entry was announced as the winner of the competition in June 2013. Construction started in 2015 and the building opens on December 5th, 2018.
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Helsinki Central Library, Oodi, ALA Architects, Helsinki, Finland, Ramboll Finland
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VIDEO
 
 
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MATERIALI
 
acciaio, cemento armato, legno

Helsinki Central Library, Oodi, ALA Architects, Helsinki, Finland, Ramboll Finland

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ECOSOSTENIBILITA'
 
Helsinki Central Library, Oodi, ALA Architects, Helsinki, Finland, Ramboll FinlandThe design of the building envelope is intrinsic to the passive energy approach adopted by the project team. Detailed analysis of the façade performance has informed the environmental solutions and has allowed the team to minimize the requirement for mechanical environmental control systems, which facilitates the highly flexible architectural solution. The glass facades allow for large amounts of functional daylight in the public areas, reducing the use of artificial light and enhancing the quality of the interior spaces as a multifunctional citizen’s forum.

The library building will be extremely energy efficient. Its energy consumption level is that of a nearly Zero Energy Building (nZEB). This is mostly due to the efficiency of the building services. The material efficiency of the building has benefited among other things from the use of wood in the exterior cladding.
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LOCALIZZAZIONE
 
Continente
Europa
Nazione
Finlandia [Suomi/Finland]
Provincia
Finlandia meridionale [Etelä-Suomen lääni/Södra Finlands län]
Regione
Uusimaa [Uusimaa/Nyland]
Distretto
Helsinki [Helsinki/Helsingfors]
Città
Helsinki [Helsinki/Helsingfors]
Indirizzo
Töölönlahdenkatu 4
 
 
Telefono
+358.09.310.85000
Sito web
E-mail
oodi@hel.fi
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MAPPA
 
 
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TIPOLOGIA
 
Principale
ARCHITETTURA
Edifici per attivita' culturali
Biblioteche e mediateche
Edifici per attività ricreative
Auditorium e centri per la musica
Edifici per viaggi e turismo
Centri di informazione e di accoglienza
Accessoria
ARCHITETTURA
Edifici per attivita' culturali
Sale conferenze
Edifici per altre attività culturali
Edifici per l'insegnamento
Centri e spazi d'informazione
Altri centri per l'insegnamento
Edifici per uffici e studi professionali
Uffici
Edifici commerciali
Bar, caffetterie
Ristoranti
Edifici per attività ricreative
Teatri
Cinema

ARCHITETTURA DEL PAESAGGIO ED AMBIENTI NATURALI
Architettura del paesaggio
Parchi giochi per bambini
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CRONOLOGIA
 
Progetto
2012 - 2013     progetto vincitore di concorso
Realizzazione
2015 - 2018
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PREMI
 
2020
Detail Preis
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RIFERIMENTI BIBLIOGRAFICI
 
 
Helsinki Central Library, Oodi, ALA Architects, Helsinki, Finland, Ramboll Finland, IoArch"La conoscenza è per tutti", IoArch 81, maggio 2019, "Cultura e spazio pubblico" pp. 56-63
Josepha Landes, Ulrich Brinkmann, Benedikt Crone, "Nordische Bibliotheken", Bauwelt 5/2019, 5 march 2019, pp. 14-35
Josepha Landes, "Zentralbibliothek in Helsinki", Bauwelt 5/2019, 5 march 2019, pp. 14-23 (14-35)
"Civic Buildings", Architectural Record 3/2019, march 2019, pp. 91-120

Peter Mackeith, "Oodi, Helsinki's Central Library", Architectural Record 3/2019, march 2019, pp. 92-99 (91-120)
Jürgen Tietz, Ulf Meyer, "Neu in ... / New in ...", db Deutsche Bauzeitung, märz/march 2019, pp. 60-61
Ulf Meyer, "Helsinki, Zentralbibliothek »Oodi« / Oodi central library, Helsinki, Finland", db Deutsche Bauzeitung, märz/march 2019, p. 60 (60-61)
Johnny Tucker, "Library in the clouds: Oodi Library, Helsinki", Blueprint 362, february 2019, pp. 62-78
Mika Savela, "Kaupunki / Urbanity", Arkkitehti 1/2019, pp. 5-94
Essi Oikarinen, "Keskustakirjasto Oodi, Helsinki / Oodi Helsinki Central Library", Arkkitehti 1/2019, pp. 36-51 (5-94)
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MOSTRE
 
 
Suomen arkkitehtuuria. Katsaus 2020 / Finnish Architecture. Biennial Review 2020, Helsinki, Arkkitehtuurimuseo / Museum of Finnish Architecture, 4 september 2020 / 28 february 2021
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PHOTO+
 
 
Helsinki Central Library, Oodi, ALA Architects, Helsinki, Finland, Ramboll Finland
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COMMITTENTE
 
 
City of Helsinki
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IMPORTO
 
 
€ 98,000,000
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STRUTTURISTA
 
 
Ramboll Finland
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STAFF
 
Progetto
ALA Architects
Gruppo di progettazione
Competition phase:
ALA partners Juho Grönholm, Antti Nousjoki, Janne Teräsvirta and Samuli Woolston
with
Aleksi Niemeläinen, Jussi Vuori and Erica Österlund

Implementation phase:
ALA partners Juho Grönholm, Antti Nousjoki, Janne Teräsvirta (until 2015) and Samuli Woolston
with
Niklas Mahlberg, Jussi Vuori, Tuulikki Tanska, Tom Stevens, Heikki Ruoho, Nea Tuominen, Pauliina Rossi, Anna Juhola and Miguel Silva
Collaboratori
Competition phase:
Willem Barendregt, Martin Genet, Vladimir Ilic, Tiina Liisa Juuti, Julius Kekoni, Auvo Lindroos, Pekka Sivula, Pekka Tainio, Jyri Tartia

Implementation phase:
Michal Bala, Marina Diaz Garcia, Jyri Eskola, Zuzana Hejtmankova, Harri Humppi, Mette Kahlos, Anniina Kortemaa, Felix Laitinen, Malgorzata Mutkowska, T. K. Justin Ng, Marlène Oberli-Räihä, Olli Parviainen, Alicia Peña Gomez, Anton Pramstrahler, Jack Prendergast, Akanksha Rathi, Niina Rinkinen, Mikael Rupponen, Mirja Sillanpää and Pekka Sivula
Gestione progetto
Ramboll CM
Consulente teatrale
Granlund
Progettazione ambientale
Finnmap Infra & Sipti Infra
Impianti energetici
Ramboll Finland
Impianti elettrici
Rejlers
Impianti riscaldamento, ventilazione, aria condizionata
Ramboll Finland
Acustica
Helimaki Acoustics
Consulente BIM
Gravicon
Pianificazione trasporti
Pöyry Finland
Consulente per le cucine
Saircon
Plastici, modelli, rendering, visualizzazioni
VIZarch (visualizations)
StoltModels (scale models)
Ingegneria
Competition phase: Arup
Prevenzione incendi
Palotekninen insinööritoimisto Markku Kauriala
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CREDITS
 
 
Photos © Iwan Baan, Tuomas Uusheimo, Kuvio
Drawings © ALA Architects
Text edited by ALA Architects
Courtesy of Oodi Helsinki Central Library, ALA Architects | v2com newswire

Helsinki Central Library, Oodi, ALA Architects, Helsinki, Finland, Ramboll Finland



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