JEC COMPOSITES MAGAZINE - Issue #144 - January/February 2022 - 40

FEATURE bespoke structures
Focus
The composite facade team for the Berkeley/latitude
- Bouygues Bâtiment Ile-De-France - Rénovation Privée: Hakim Bouhouita
(cap.), Edouard Jaffre,
- MECA: Samuel Durand, Gaël Cloarec, Kevin Brunellière, Stéphane Guelzec
- Sika: David Angeli, Thomas Delhaye, Patrick Noirclerc, Jérôme Duclos
- Leprince Borel: Claude Borel, Yann Sanson
- SMM Technologies: Olivier Kerdoncuff
- ALV: Steeve PRUNIER
Fig. 5: Infusion of a hallway element
the fact that Sika supplied all materials
for the ribbons. The project partners
then organised the technology transfer
to the manufacturers, Le Prince Borel
and SMM Technologies.
Patrick Noirclerc from SIKA Industrie
guided implementation of the resin infusion
technique retained to manufacture
the dressings for the public hallways
and passageways (112 elements,
32 different moulds) - Figure 5.
Some details were also finalised, like
the angles of the ribbons, refilled before
machining so that they wouldn't
become blunt during transport and installation.
A
specific quality programme was established
for the project, which was
used by CSTB to monitor compliance
during an audit of the manufacturer.
Particular attention was paid to the
post-curing process for the ribbons.
The manufacturing controls defined
in the ATEx file were supervised by
members of the Bougyues construction
teams. In September 2019, the
first ribbon left the factory.
Shortly afterwards, experts from the
ATEx commission gave approval for
the design, manufacturing and installation
technique for the composite
materials facade. In their technical appraisal,
they made specific mention of
the quality of the technical file submitted
by the grouping.
Accompaniment on site
The first ribbon was installed on the
building in April 2020. Edouard Jaffre,
from Bougyues Bâtiment Ile-de-France
Rénovation Privée, was in charge of
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assembly logistics. The complexity of
the project - keeping in mind that each
piece is unique - was compensated for
by the kind of materials and factory
prefabrication. The level of precision
used when producing each piece, associated
with their light weight, made
assembly simpler.
The Latitude building was delivered in
September 2021.
Conclusion
To update a 1970s building to a 2021
aesthetic within a very short timeframe,
three French companies, Bouygues
Bâtiment Ile-de-France Rénovation
Privée, MECA and SIKA came
together, each one contributing their
know-how. This alliance, based on
intensive use of composite materials,
made complying with the architects'
initial drawings possible, all while ensuring
the lightness and durability of
the forms.
More information:
www.sika.com
Glossary
- ATEx: Technical Experimentation
Assessment French procedure for
assessing an uncommon technique, for
an identified construction project.
- BIM: Building Information Modelling.
Work method that improves collaboration
by relying on one or more digital
mock-ups that represent the work in
three dimensions.
- CSTB: The French Scientific and
Technical Centre for Building Body
notified for technical evaluation of
materials and cement techniques.
- CPR: Construction Products Regulation
144 January - February 2022
Set of rules for authorising construction
products to be placed on the
European market.
- TS 19101: prCEN/TS 19101 Design of
Fibre-polymer composite structures.
Eurocode composite materials project.
Bouygues Bâtiment Ile-De-France
- Rénovation Privée is a general
contractor in the building and construction
sector. It offers overall and custom project
supervision for high-end renovation and
rehabilitation projects for commercial,
hotel, retail and residential real estate.
The company has been well-known in the
Paris region for over 30 years for luxury
hotel project execution like the Ritz and
the Hôtel de Crillon, and other large-scale
projects like the First tower and the Poste
du Louvre. It also carries out projects for
private customers and high-end retail such
as the BHV and Galeries Lafayette.
MECA is a design and engineering firm
specialised in innovative composite
materials structures. Its engineers and
technicians are joined by experts in
materials behaviour, structural analysis,
multi-material design and hydrodynamics.
All of these skills cover a wide range of
applications, from building to industry
(naval construction, energy, railway and
aeronautics).
SIKA Industrie, the largest producer of
one-component polyurethane sealants
and adhesives, is the expert in bonding,
sealing, cushioning, reinforcement and
protection solutions. Sika's success is built
on areas of expertise spanning a wide
variety of applications providing solutions
for production, assembly and repair for
over 100 years. Sika's core business is
innovation management and the continuous
development of quality products and
optimised solutions for customers.
http://www.sika.com
JEC COMPOSITES MAGAZINE - Issue #144 - January/February 2022

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