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Pantheon Rome
1. Pantheon, Rome Pantheon
It was built in 118-125 AD, nearly 2000
years ago. The poet Shelley called it “The
unmeasured dome of Heaven.”
A Roman Masterpiece
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free for non-commercial and personal use. First created. 6 Sep 2010. Version 2.0. 28.3.12. London. Jerry Tse
3. Roman world under Hadrian
During the reign of Emperor Hadrian (117-138 AD), the Roman Empire stretched all the
way from Scotland to the Persian Gulf. All the lands bordering the Mediterranean sea
were part of the Roman Empire.
During his time the empire was relatively at peace with its neighbouring tribes. The only
formidable enemy was the Parthian Empire, in now Iran, on the Eastern frontier.
4. Roman constructions
Coffered vault
The Roman invented concrete
which was forgotten after the
collapse of the empire. Together
with bricks, these were
commonly used in construction.
The Roman also used arches
extensively. Many of its
buildings used curves in their
construction. The Coliseum and
the Pantheon are two well-known Concrete vault
examples.
Rubble Wall
Central heating
Arch
5. Interior
The Roman Pantheon
The Pantheon was built as a
temple, just outside Rome.
On the original building the dome
was with sheets of bronze giving it
a shinny golden surface. The lower
part of the external wall were
covered with marbles. It also had
a bronze door.
8. Pantheon - History
In 27-25 BC, it was the site
used by Agrippa, who wanted
to dedicate it to Augustus
Caesar, his father-in-law.
When Augustus declined the
honour, it was dedicated to
the major gods (Mars, Venus
etc.) It was rectangular in
shape.
The current building was
rebuilt between 118 and 125
AD, during the reign of
Hadrian.
It the 609 AD the building was
transform into a church,
dedicated to Santa Maria dei
Martyri, after the bones of
Christian martyrs were
bought here from the
catacombs.
15. Pantheon – A brilliant
composition of
geometric forms.
The main components of
the building – the portico,
the rotunda and the dome.
16. Oculus
Method of Construction
Buttressing The ceiling is an unreinforced
concrete dome resting on a thick
Coffers dome
Portico circular wall or rotunda. The circular
opening at the top of the dome is
called the Oculus, providing light and
Rotunda
ventilation.
The Pantheon has a coffered dome.
This reduces the material used for
Pier, support for span construction and therefore the weight
of the ceiling.
From the diagram above you can also
see the cross-section of the roof get
thinner as the dome gets higher. 7 recesses for 7 gods
Very light stone called pumice, which
float on water, were used as the raw
material with the concrete. It further
reduce the weight of the dome. Piers
Portico
19. The Oculus – only source of light
The diameter of the dome is 43.3 meters (142 ft). It remained the largest dome in the
world for more than a millennium and is still the world’s largest unreinforced concrete
dome. There are 5 rows of coffers, to reduce the weight of the dome, around the ceiling.
38. The End
Music - Albinoni’s oboe concerto in C Major, op 9 no 57 -
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1st movement. Allegro
free for non-commercial and personal use.
Editor's Notes
Built more than 1800 years ago, the magnificent Pantheon building still stands as a reminder of the great Roman empire. Pantheon With its thick brick walls and large marble columns, the Pantheon makes an immediate impression on visitors. But for its time the most remarkable part of the building is the more than 43 meter high some. It was the largest dome in the world until 1436 when the Florence Cathedral was constructed. At the top of the dome is a large opening, the oculus, which was the only source of light. The front portico has three rows of 8 columns, each one with a diameter of 1.5m. A huge bronze door gives access to the cylindrical building. Its Interior Originally a temple for all pagan gods, the temple was converted into a church in 609. The Pantheon now contains the tombs of the famous artist Raphael and of several Italian Kings. Its ecclasiastic interior design contrast with the temple's structural design, but the marble floor - which features a design consisting of a series of geometric patterns - is still the ancient Roman original.
The most famous Roman dome, and the largest, is in the Pantheon, a building in Rome originally built as a temple. Dating from the 2nd century, it is an unreinforced concrete dome resting on a thick circular wall, or rotunda. The circular opening at the top of the dome is called the Oculus, and it provides light and ventilation for the interior. The height to the oculus and the diameter of the interior walls are the same, 43.3 meters (142 ft). It remained the largest dome in the world for more than a millennium and is still the world's largest unreinforced concrete dome Wikipedia on Dome.