Brunelleschi's dome - Researchers uncover the construction secrets of Italian Renaissance domes

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Moden engineering still has lessons to be learnt from studying the master of structural engineers from the Italian renaissance, a prime example being Brunelleschis's dome part of Cattedrale di Santa Maria del Fiore. The physics behind how this dome stands-up is not grounds for debate, however, how Brunelleschi was able to construct his dome without temporary supports has been up of debate for 100's of years. If Brunelleschi dome was to be constructed today it would push the bounds on modern construction techniques.
Research to unlock the construction secrets behind the Italian Renaissance domes was undertaken in collaboration with Princeton University and the University of Bergamo, and they uncovered to uncover the engineering and construction techniques behind the self-supporting construction of masonry domes from the Italian Renaissance, finally unlocking the secrets behind the construction of Brunelleschi's dome. This also gives us great insight into the masters of structural engineering from the Italian Renaissance.
Link to the Research
www.princeton.edu/news/2020/0...
Brunelleschi's dome forms part of the Cathedral of Santa Marie del Fiore in Florence, and Brunelleschi's Cupola is one of the larges masonry duomos in the world.
Filippo Brunelleschi was truly a Master engineer/architect, and he is now recognized as the first modern engineer.
Shell structures have been used by structural engineers for thousands of years with the oldest shell structure dating back to 3000BC. Whether they be a modern-day structure or a Cupola constructed during the Italian Renaissance they are always are a marvel. Let's find out what we can learn from studying Filippo Brunelleschi master peace the Duomo di Firenze.
#Brunelleschi'sDome #Brunelleschi
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28 июн 2024

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Комментарии : 29

@airangel94 Год назад

As an architect, I truly appreciate learning about lesser known structural techniques such as this. Thank you! Would love to see more videos like this, revealing structural concepts behind famous structures.

@prabinpathak9819 3 года назад

Thank you Brendan for bringing such an amazing content about construction technique used by Brunelleschi. I am excited for next video.

@BrendanHasty 3 года назад

Hi Prabin, Brunelleschi was a master of structural engineering, studing his masterpieces's we can still learn things today. It give me joy that you found the video interesting and enjoyable. Looking forward to impressing you in my future content.

@thesage1096 3 года назад

truly an amazing feat of engineering. thank you for explaining it so simply and elegantly. also the video footage and graphics you used were very pleasing and insightful

@BrendanHasty 3 года назад

Hi The Sage, Glad you enjoyed the video. sometimes with computers we overlook simple solutions, hope to impress into the future.

@davidepperson2376 2 года назад

Great video, thanks for sharing. I have a couple of questions: - The work done by Princeton et al., do you know if it refuted or discovered additional structural elements or techniques beyond what was contained in “Brunelleschi's Dome: How a Renaissance Genius Reinvented Architecture” by Ross King? I have been fascinated with the dome since I toured inside of it and discovered this little book that was published in 2013 - by chance did you read it to prepare for this presentation? - Brunelleschi left his jewelry business and went to Rome to study what was left from the ancients’ architecture. This was the end of the dark ages/beginning of the renaissance, and much of what he learned it had previously been lost as Rome had fallen from a peak of a bout 1 million down to fifty or one hundred thousand inhabitants. These architectural principles and concepts were nearly 1300 years old. Which gives me to my next question, what was the 130 year old code that Brunelleschi discovered? Are you referring to the fact that the cathedral was built but remained without a dome for nearly that long? Thanks again for the great video!

@davidmiller9971 Год назад

Do the 8 arches follow a catenary curve (hyperbolic cosine)? Do the internal and external shells follow the surface of a catenary revolved around a vertical axis passing through the dome apex?

@brucelee-wo5ge 3 года назад

I'm not an engineer but have an interest in these incredible historic structures. Whilst I understand the principle of the radiating course of vertical bricks (is it a legstrom? - mate I'm an Aussie but struggled to understand some of your mumbled pronunciations) of the inner vault keeping the horizontal courses under compression, I fail to comprehend the connection to string and weights?? And what 130yo code did Mr B crack? Please explain this more clearly for my simple brain. Thanks.

@BrendanHasty 3 года назад

Hi Bruce lee, Thanks for watching and your interest, (BTW working on the mumbling，hope to improve in the future any other improvement suggestions welcome). the shape of the dome(the arc) is the same shape the string forms, adding weight change the shape and shows the stable form Mirrored. The engineering behind the dome was well understood, the unanswered question was how the dome was able to be built without a temporary structure. Due to its size, the dome could not be built with a temporary structure, thus it must have been stable in its temporary state. How Brunelleschi was able to keep the dome stable in it’s temporary was unknown, despite the many theories. The new research has proven the engineering behind how the dome is stable in its temporary state. Link to the research www.princeton.edu/news/2020/05/21/double-helix-masonry-researchers-uncover-secret-italian-renaissance-domes

@roddykennedy9476 Год назад

Thank you for adding this link. This has helped me to get closer to understanding the structural action in the brickwork but not fully. I wish somebody would put a physical demonstration on RU-vid!

@kjellg6532 Год назад

What is the purpose of that disturbing noise in the background?

@davepowell7168 2 года назад

Hi Brendan, fascinating information. One issue puzzles me.How does hexagonal physics apply? The architect shows true applied genius. I heard his trade was watchmaker which confused me far more.

@davepowell7168 2 года назад

The National geographic mentioned clockmaker, excuse my error. In 1420 watchmakers would have been anachronistic.

@BrendanHasty 2 года назад

Hi David, I agree with a hexagonal slip of the tongue, it is an octagon，I try not to read off a script to make it more genuine, my newer videos, I think, are getting better as awkward in fount of the camera. As for octogon, It is more to keep the stresses as a ring around the perimeter as the forces balance out in hoop stress. I have seen articles where he had a range of professions filling many shoes from Sculpture, architect, engineer, inventor and credited as the first person to describe a precise system of Linear perspective. he achieved a lot over his life

@davepowell7168 2 года назад

@@BrendanHasty Thanks. Immediate subscription. I enjoyed the use of simple props to visualise forces. This helps me to be now more awed by the Parthenon than before

@simongregory3114 Год назад

Architects and engineers didn't exist then as separate disciplines. His training was as a goldsmith, making threads for expensive silk fabrics, and as a sculptor, and as a clockmaker. He lost out to a fellow sculptor in a prestigious contest for bronze panels on the doors of the baptistry of the same cathedral, was very disappointed about it and went to Rome for a about 4 years I think to self study the ruins of roman architecture there. Amazing to think how brilliant he must have been to incorporate all those influences in such an innovative and daring way.

@amdhosni Год назад

Good video but you need to speak and probounce with more clarity and with better audio gear.

@BrendanHasty Год назад

Hi Ahmad, I have been working on my pronoucuation, my new videos should be much better. thanks for letting me know.

@1397cc 3 месяца назад

it's wrong...: here in florence Italy we have a 1:5 model in a park that -concretely- explains the building process and it doesn't have the double loxodrome. More or less, just one these double lines is enough (the spinapesce that grows thanks to the ropes connected at the bottom concoide)