SEMAPA (Paris design, contracting and development company) / Paris City Hall
Project owners:
compared with the average in Paris.
met by renewable energy.
As a symbol of the ambitions of the City of Paris’ climate plan, the project includes within its design:
In response, Egis has developed an extremely ambitious project from a technical and environmental point of view, focusing on energy production, consumption control, air quality and, above all, reducing the carbon impact of buildings.
An energy mix with a very low carbon signature
We have planned to supply the future district with renewable and recovered energy, in particular with heating and cooling generation networks, the mass installation of solar panels on the existing roofs and a smart grid making it possible to choose the least carbon-intensive energy source in real time.
Material choices
On the scale of the district, two thirds of structural elements are planned to be made from wood (primarily French wood) including the floors. This genuine feat was pulled off by Egis in association with Adivbois and the CSTB (Scientific and Technical Building Centre), for the construction of high-rise buildings, given the constraints entailed by the inflammable mass of this material.
Furthermore, low-carbon concrete and/or metal will be used sparingly and in a targeted way so as to create complexes that are less carbon intensive.
An air purification system
This project places air quality at the heart of its design. Indeed, an air purification system has been designed for both the interior and exterior of the buildings. The terraces and public spaces located near the ring road (boulevard périphérique)will also benefit from dedicated air purification systems.
Bruneseau extends and emboldens the skyline of the 13th arrondissement of Paris, with slender and elegant buildings that will symbolise this new hub between Paris and Ivry. One of our major challenges was to design systems adapted to high-rise buildings. To this end, Egis worked on two key elements of the project:
Structures
Our teams worked rationally and ambitiously to enable wood to be integrated as a structural material in high-rise buildings. As a result, half of the volume of concrete will be replaced by wood, thanks to the integration of fire, acoustic and constructional constraints in the floor complexes.
Façades
We provided the high-rise buildings with efficient facades in terms of their materiality, while factoring in another major issue: acoustics. We therefore took particular care to ensure that the façades were impermeable to noise, but also to guarantee thermal regulation via a bioclimatic system that ensures energy savings and comfort of occupancy.
Integration and managing the infrastructure, in the immediate vicinity of the ring road and its slip roads, was another challenge for our teams and an important constraint for the project methodology. Our goal was to absorb the infrastructure and expunge the urban density to create a true city centre.
In so doing, we are initiating the transformation of the district to heal a public space exposed to major externalities, and provide a living environment that will also be a destination of choice and a place for sustainable mobility, erasing the division caused by the ring road.
