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Building the Pantheon today would be a demanding feat, imagine building it 2000 years ago and even imagining the dome would hold up when you started the work, m
by coldcode 6y ago
Building the Pantheon today would be a demanding feat, imagine building it 2000 years ago and even imagining the dome would hold up when you started the work, much less for 2000 years. Whoever the architect/engineer was, they were unbelievably bold.
- briancp 6y agoSince it’s made of unreinforced concrete, getting it permitted in almost any jurisdiction in the world would be exceedingly difficult. Which is somewhat ironic, as it’s the lack of corrodable reinforcing that’s enabled it’s extremely long lifespan.
- trianglem 6y agoCan plastic be used for reinforcement of the concrete in any way?
- adolph 6y agoThe ideal is a non-stretchy material. Concrete is strong under compression, but has weak tensile strength. Rebar significantly increases the tensile strength of the structure. https://en.wikipedia.org/wiki/Rebar https://en.wikipedia.org/wiki/Rebar
- smegger001 6y agoYeah what you would really want is a carbon fiber or fiber glass rebar for reinforcement rather than steel to avoid corrosion.
- toyg 6y agoTechnically it has not, though. It was rebuilt twice, iirc, although the last time more than 1000 years ago.
- Tronno 6y agoThe entire structure is original, and about 2000 years old. It was built on top of an earlier temple with a completely different design - that's probably what you're thinking of.
- bradknowles 6y agoYou couldn’t rebuild it today. It still has the world’s largest cupola, and we have still don’t know how to build one that big, otherwise someone would have already done it. So, it would not be possible to build such a building today, even though they did build one thousands of years ago.