.
The Eiffel Tower
is
120 Years Old
15 Years on the Eiffel Tower
In 2009, the Eiffel Tower
celebrates
its
120th
anniversary, and remains
today the most loved and the
most visited historic structure
in the world.
15 Years of
OSMOS
Technology
gy
For 15 years OSMOS has
continuously monitored the
main structures of the Eiffel
Tower. The daily, seasonal
and pluri-annual deformation cycles are now perfectly
known and fed into a data
bank which allows detection
of any modification of the
structure’s behavior well
ahead of time. During these
15 years, OSMOS has
developed
unceasingly
monitoring
technology
dedicated to absolute safety
of infrastructures, and has
become the uncontested
leader in the field.
Thanks to the many purposes
that Gustave Eiffel conceived
for it - and most especially
thanks to his inspired vision
of an “elegant and durable”
structure - the “300 meter
Tower” is a structure, whose
technical and architectural
aspects remain unsurpassed.
In 1993, OSMOS installed
Optical Strands the main
structures of the Eiffel Tower.
Was it really possible to
monitor both the static and
dynamic behavior of a
structure? To obtain a clean
signal without fail and without
interference, a signal bearing
information on the actual
state of the structure?
The Société d’Exploitation de
la Tour Eiffel (S.E.T.E.)
thought so and entrusted
OSMOS.
OSMOS and its partners
monitor
hundreds
of
structures throughout the
world. Some are famous
and
others
are
less
spectacular, but all are
equally important to us to
serve infrastructure owners
and the collectivity.
We would like to thank the S.E.T.E. for their 15 years of confidence.
We share this symbolic and prestigious reference with our partners, which use the OSMOS technology day after day in
the world.
Finally we are very proud to serve in the preservation of the Gustave Eiffel
Finally,
Eiffel’s
s work.
work
Bernard Hodac, Chairman & CEO of the OSMOS Group
15 years on the Eiffel Tower
15 years on the Eiffel Tower
May 21st, 1897
Measurements by Gustave Eiffel
15 years
2003 Heat Wave
1 month
May 21st, 2001
Measurements by OSMOS
1 hour
1 minute
These two measurements taken under identical
climatic conditions are separated by 104 years to
the very day. They are strikingly similar.
On the left, deformations registered simultaneously on
the Ground Floor, 1st Floor and 2nd Floor
3 seconds:
The Tower's natural period
15 years on the Eiffel Tower
Detect & Invest at the Right Time
What all specialists know
All civil engineering infrastructures: bridges,
dams, tunnels or buildings… age. The
structure fatigue increases without it
always being visible. Whether the risk
comes from a premature fatigue or from a
construction defect, no bridge is 100% safe
according to experts.
experts
With OSMOS, there will be no more
uncertainty. No bridge, no civil engineering
infrastructure will surprise you ever again.
All too often, short term or purely
theoretical
considerations
give
an
i
incomplete
l t
view
i
and
d encourage the
th
adoption of inappropriate and nonprofitable measures.
When, in a large number of cases, the
objectives require an observation of all the
parameters over a sufficiently long period,
OSMOS provides new solutions perfectly in
line with these objectives.
To all those who are involved in ensuring
public safety, including politicians and civil
engineers, OSMOS provides easy and
accessible safety monitoring techniques to
meet their demands for the conservation
and maintenance of the pools of
infrastructures they are responsible for.
15 years on the Eiffel Tower
At a time when responsible management and sustainable development are
economic and political priorities,
The OSMOS Group clearly positions itself as a Global Risk Manager,
actively involved in preventive maintenance and durability of infrastructures,
and fully dedicated to pools of infrastructures in both the public and private
sector.
OSMOS:
‰ Detects the smallest weakness in a structure as soon as it appears
‰ Allows corrective actions at low cost
‰ Ensures the continued use of the structure and ultimately
‰ Lengthens the life of the structure safely.
As a result:
‰ Better use of resources
‰ No more constraints of emergency for operators and
‰ Reduction in risk level
NUMBERS WHICH COUNT
1 accident
per week in the
world
3.5 billion Euros
346 million tons
saved in 10 years The huge challenge of the
annual waste in the
thanks to OSMOS
building industry
90%
of infrastructures
can be repaired
100%
Success rate for
OSMOS projects over
4 continents
1 bridge saved
= its weight in CO2 saved
for the environment
For all those whose mission is to protect and make pools of infrastructures last
longer,
the solutions developed by the OSMOS Group represent a new management
tool.
15 years on the Eiffel Tower
City of New York
“I want to thank you very much for the significant volunteer effort made by OSMOS to help the City of
New York to respond to the consequences of the terrorist attack of September 11, 2001. The sensors that
OSMOS installed at and around the World Trade Center site were an important
p
tool for assessingg the
structures of 3 World Financial Center (AMEX) and 130 Liberty Street (Bankers Trust).”
Kenneth HOLDEN, New York City Commissionner
Orsay Museum
"The OSMOS system has allowed us to optimize our
interventions without stopping the museum activity."
Olivier MOREAU, Technical Controller
EDF Grand’Maison
Power Plant
“The interest of
the system OSMOS is the
ability to continuously
monitor both rapid and
slow deformations
deformations. The
interpretation provides
crucial information on
major civil engineering
structures so as to plan
genuine predictive
maintenance. This is
clearly an advantage in
terms of safety.”
J
Jean-Louis
L i Amiard,
A i d
Site Manager
Eurotunnel
“The OSMOS system gives us
complete satisfaction and
remains reliable over time.
Its simple design and use
are advantages sought after
for installation in major structures.”
Gérard Delacre, Technical Manager
Astérix
Park
«The
OSMOS system
installed on the
huge «Tonnerre
de Zeus»
wooden rollercoaster enables
us to verify the
normal behavior
of this complex
structure and to
optimize our
maintenance
routines.»
Alain Trouvé,
Technical
Manager
Eiffel Tower
“The patrimonial conservation of the EIFFEL Tower monument requires constant
monitoring of its evolution.
The system set up by the company OSMOS on the Tower, and well-tried for 15 years
now, fully fulfills that mission.
The OSMOS system is a valuable aid to decision-making, and a source of savings in
both time and money! "
Stéphane ROUSSIN, Head of the Structure Department of the Eiffel Tower
Company of Certified Insurance Experts
«The monitoring system developed by OSMOS indicates the stresses imposed on structures - whether
they display damage or not - and enables timely intervention. We have had the opportunity to test the
extreme efficiency of this system both in terms of risk prevention (comprehensive building site policies)
and claims assessment.»
Michel Dubernard, Expert in Insurance
Vézelay Basilica – World Heritage Site
«The Basilica of Vézelay can hardly be modelled by conventional methods. The
OSMOS system, installed discreetly on the whole structure, gives us exploitable
information to qualify the real state of the Basilica.»
Bruno DECARIS, Chief Architect of Historic Monuments
15 years on the Eiffel Tower
The City of Montreal • RATP • Ministry of Culture • The New-York Metro • The
Stade de France • Eurotunnel • Deutsche Bahn • The Port of Yokohama • The
Eiffel Tower • Conseil Général de Haute-Savoie •
The Port of Hamburg • EDF • The Road Department of Saxe • SNCF • The City
of Paris • Swiss Railways • The Ringroad of Madrid …
Road sector
• Ageing state of a group of
infrastructures
• Traffic qualification
• Evolution of a group of infrastructures
• Priority setting
Tall infrastructures
(Towers, Tall infrastructures, Windmills)
• Climate issues
• Movement and/or comfort
• Ageing of materials
• Proximity risks
Rail sector
• Stability of infrastructures and platforms
• Rail/Road transfer hubs
• Anticipation requirements
• Responsibility transfer
Nuclear
• Necessity for absolute safety
• Taking environment and seismic response
into account
• Third party informing documentation
• Immediate reactivity
• Population Safety issues
Industry
• Record and traceability of strains
• Seismic response
• State of fatigue
• Action plans
Hydraulic
H
d
li
• Geological scale taken into account
• Third party informing documentation
• Response to needs on continuous
monitoring
• Maintenance optimisation
Heritage sites
• Evaluation of atypical sites
• Understanding
g of homogenous
g
and
heterogeneous material
• State of conservation
• Maintenance programmes
School buildings
• Necessity for absolute safety
• Emergency response
• Reassurance without exceeding operating
budget
Geotechnical
• Soil and procedure qualification
• Durability of infrastructures
• Widening of appreciation fields
• Permanent link between knowledge and
decision-making
15 years on the Eiffel Tower
www.osmos-group.com