Slide 1
Florence needed a way to build an enormous dome
Filippo Brunelleschi designed the dome of Florence Cathedral. Its enormous opening demanded an unusual way to build with masonry.
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The dome was built from 1420 to 1436. The official account describes two connected shells and herringbone brickwork, rather than a simple solid cap.
Slide 2
Two connected shells replaced one solid mass
His dome uses inner and outer shells linked into one structure. It is not one solid mass of masonry.
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Separating the shells creates space between them. That construction changes the amount and arrangement of material compared with a solid vault.
Slide 3
The shells, brickwork and hoists worked together
The two shells reduced weight while preserving strength. Herringbone brickwork redirected loads during construction. Custom hoists lifted stone and brick high above the city.
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Construction depended on organizing work at height as well as on the finished shape. Brunelleschi designed machinery for the site; lifting materials was part of solving the building problem.
Slide 4
The building work became a lasting city landmark
Construction began in 1420; Florence Cathedral was consecrated in 1436. The dome became a lasting feature of the city.
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The dates distinguish the building campaign from its later history. Today's monument is the result of construction and continued care, not a single moment of invention.
Slide 5
A design also needs a way to be built
The dome joins structural design with construction methods. Its shells, brickwork and machinery show why a finished form must also be possible to build.
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Its achievement is best explained through the combination of masonry arrangement, shells and site machinery. Naming one ingenious feature does not explain the whole structure.
Sources
- Brunelleschi’s dome
Smarthistory
- Brunelleschi Dome
Opera di Santa Maria del Fiore