Deichman Bjørvika

The new construction of the Deichman Bjørvika Library is another building block in the development of the old harbour area around the opera house. The main load-bearing structure of the new library is a cast concrete structure consisting of five main floors, three mezzanines and a basement. The interior of the library is organised around three light shafts, which create a fluid transition to the outdoor space and connect the different floors.

The characteristic feature of the load-bearing structure is the folded concrete roof construction with its ramp underneath, which is suspended from the roof using tension rods. The ramp extends like a large spiral staircase from the 4th to the 5th floor and hovers over the main library entrance with a cantilever of up to 18 metres. All decks from levels 2 to 5 are constructed as biaxial perforated decks to enable spans of up to 14 metres. The perforated decks reduce material consumption and integrate the chilled water system, which activates the thermal mass. The new main library has been designed in accordance with the requirements for the passive house standard, thereby achieving the goal of a 50 % reduction in energy consumption and a corresponding 50 % reduction in greenhouse gas emissions. Deichman Bjørvika is one of the first pilot projects for FutureBuilt.

The library has an innovative façade concept to contribute to the project's environmental goals. An advanced three-layer façade with large spans for glass and cladding, where there is a layer on the outside to improve insulation, a three-layer insulating glass in the centre and glass on the inside to diffuse light into the building. The vertical façade columns, consisting of fire-rated fibreglass-reinforced plastic filled with thermal insulation, and the filling elements of triple glazing, together with the horizontal connecting elements, forms the essential part of the development of the façade. The façade is designed in such a way that it fulfils the high thermal and climatic requirements.