le tour d'Eiffel made by me.

2.  Height – 324 m
 Located in Champ de Mars, Paris
 Iron Lattice Tower
 Named after its engineer, Gusatve Eiffel
 The tower has three levels for visitors
 Restaurants on the first & second
 Observatory on the third
Construction started 28 January 1887
Completed 15 March 1889
Opening 31 March 1889

3.  Design of the Eiffel Tower was originated
by Maurice Koechlin and Émile Nouguier,
two senior engineers.
 Described by Koechlin as “a great pylon,
consisting of four lattice girders standing
apart at the base and coming together at the
top, joined together by metal trusses at
regular intervals”.
 Initially Gustave Eiffel himself showed little
enthusiasm, but he did sanction further study
of the project.
Gustave
Eiffel

4. It was only after the head architect,
Sauvestre added decorative arches to
the base, a glass pavilion to the first
level, and other embellishments did
the design grab Gustav Eiffel’s praise.
Stephen
Sauvestre

5. Eiffel as drawn by
Maurice Koechlin

6.  The foundation of the
Eiffel Tower was very
important because it
needed to be able to
successfully hold a load
of about 10,000 tons.
 As a result of the weak
soil, Gustave Eiffel
created a two-system
foundation for the Eiffel
Tower.

7.  The North and West pillars of
the Eiffel Tower were close to
the Seine River. It caused
serious problems to the
foundations since a stable
soil was needed to build the
Eiffel Tower
 The use of casings alllowed
the engineers to take up the
challenge and avoid water
leaks while reinforcing the
foundations with the adding of
brickwork and concrete. It
only took four months for the
foundations then the building
of the pillars started.

8. Constructionstagesof

9. Construction of the legs with scaffolding.
7 December 1887:

10. Completion of 1st level.
20 March 1888:

11. Start of construction of second stage
15 May 1888:

12. Completion to 2nd level
21 August 1888:

13. Construction of upper stage
26 December 1888:

14. Construction of cupola
15 March 1889:

15. Completed Eiffel Tower

17.  The puddled iron (wrought iron) structure of the Eiffel
Tower weighs 7,300 tonnes, while the entire structure,
including non-metal components, is approximately
10,000 tonnes
View from below the tower

18. Three lifts (North, East, and West pillars ) will take you up
to the 1st and 2nd floors (115m). To visit the top floor
(276m), visitors needs to change lifts at 2nd floor

19. Maintenance of the tower
includes applying 50 to 60 tonnes
(49 to 59 long tons; 55 to 66 short
tons) of paint every seven years
to protect it from rust. The height
of the Eiffel Tower varies by
15 cm (5.9 in) due to
temperature.

20. THANK YOU FOR
WATCHING!