The building
concentrates lots of specificities and lots of representatives. The
centre accommodates 300 buses. 800 bus drivers forward trough the
building every day, plus the administrative staffs which manages the
centre. It’s a flux building. The plan has been in evolution during all
the studies, the work and is still “moving”. So there is no
pre-determined structural or functional screen on the building. Aside
the administrative building, the program included the realization of a
new checkpoint of the centre and a bikes shelter. It’s located in Ile
de France, in the south of Paris in the 9-4 department. It’s an
industrial context, characterised by a succession of boxes, at best
basic. In this chaotic landscape, there is not much to say. Solely can
we point out one federating element : the mineral ground – a mix of
asphalt and concrete… We reduced
the site to a bus park, a vast monolithic concrete slab, uniformed
territory composed of one sole material. The building starts with the
deformation of the ground, the distortion of the existing concrete
slab, and continues it with an apparently similar material Ductal ®,
still concrete but a dazzling sheet of concrete, which responds to very
sophisticated demands: informality of the structure, constant evolution
of the plans, dematerialization, precision, density, homogeneity of
aspect according to the mould designed. It ensures a continuity of the
ground from the road, to the skin of the façades, the suspended
ceilings and the terrace rooftop without any rupture. This possible
dematerialisation comforts the approach of sustainable construction
objectives; the precision contributes to the conception of the facades
as a skin with an exterior isolation, homogeneity of aspect allowing
carrying out any specific pattern. Combined with the structural
qualities of the material, the building has neither a beginning nor an
end. It is a continuity of a surface of which we can, depending on what
you aim at, not control the limits. It is an inflection of a slab which
spreads on the whole site.The
building appears like a monolith with rounded edges, polished somehow.
Characterized by a dense square plan (35m x 35m) developed on 2 levels,
it presents itself as the continuity of the banal coating of the roads,
like a piece stamped from distorting the existing concrete surface of
the Bus Center. The Ductal ® is used here as a morphing to cover the
carcass of a composite program. The result is a dense building, inert,
deaf, and enigmatic as “the hull of a Russian submarine in the waters
of Murmansk”. The building is deformed by stamping its context –
uniformity between the building and its support to a point of
confusion. This crust that covers the evolution area of the buses is
distorted, modeled to cover the administrative center. The “windows”
are cut with a cutter blade : surgical incisions generating volumes in
negative which reveal colored mirrors under the thin crust of concrete.
The texture games are facilitated by the flexibility of the material
and its ability to be molded with precision. The quality of finish and
rigor of Ductal ® contribute to ensuring this concrete skin, accurate,
continuous, perfect connections. The skin : 3 cm thick displays a
single texture of dots in relief like a game of "LEGO": 24 mm diameter
x 7 mm high, distant of 12 mm. The concrete hull is cut out with a
cutter putting at sharp, revealing cavities of reflective and coloured
glass under the concrete crust. Treated with silver mirror dots,
chromatics of the glass products are inspired by the tinted curtain
wall frontages of the office buildings which border the main road.