In the context of an urban requalification of the Island Seguin – once location of the Renault factories – the General Council of the Hauts-de Seine wished to endow itself with a cultural site of great acoustical and architectural quality and strong outreach. This complex consists mainly of music halls (e.g. an auditorium with 1000 seats and a concert hall for 4000-6000 spectators depending on the configuration) that are to welcome a large variety of events but also an orchestra in residence. It also includes an administrative section as well as commercial and business spaces, a large lobby and a restaurant. The project Cité Musicale suggests an iconic architecture with an egg-shaped auditorium, covered with a solar veil that follows the sun’s course. The arrangement of the volumes on site creates a prime square with vegetation and pedestrian walkways.
For conditioning the concert halls a system of displacement ventilation will be used that guarantees an optimal flushing of the air volume resulting in high air quality. Circulation spaces such as the hall and lobby are treated with reversible floor activation (heating and cooling). The energy supply is ensured by a connection to the district heating and cooling network IDEX, virtuous for its high ratio of 65% renewable energies.
Transsolar’s intervention has allowed an optimization of the building concept using a number of numerical simulations: CFD to orientate the landscaping design to block the cold winter winds, daylight simulations to calculate the natural daylighting levels in the work spaces, solar irradiation simulations for the auditorium and solar veil to evaluate the production of photovoltaic energy.
Thermal dynamic simulations were used to estimate the energetic consumptions of the complete building, in order to respect the energetic commitments signed by the General Council.
Finally, Transsolar supports the entire HQE certification process of the project with a very ambitious environmental profile (only one out of 14 criteria on basic level).
Client: Bouygues Bâtiment IDF PPP
Architects: Shigeru Ban Architects Europe, Jean Gastines Architecte