Notre Dame on fire

[Gordon_R]

They should consider upgrading the roof and not use wood.

I'm 99% sure they will use wood for the roof. There is no material that is as light and as strong. They might make the wood fire-resistant though. The repairs will take decades. See: https://www.bbc.com/news/world-europe-47952055

 

[daveza]

I'm 99% sure they will use wood for the roof. There is no material that is as light and as strong. They might make the wood fire-resistant though. The repairs will take decades. See: https://www.bbc.com/news/world-europe-47952055

Macron wants it done in 5.

I didn't know there was 200 tons of lead on top of the wooden roof, most of which melted away.

 

[Gordon_R]

Macron wants it done in 5.

I didn't know there was 200 tons of lead on top of the wooden roof, most of which melted away.

Forgot to post that earlier. Lead has been used since ancient Roman times, since it has a very low melting temperature, and is easy to bend. I hope that most people know the world plumber comes from the Latin name for lead-worker. See: https://www.merriam-webster.com/dictionary/plumber

 

[Knyro]

I guarantee 99% who read the wiki page will look up the word on Google.....

Bruh it's 2019, you just mouse over the word on wiki now.

 

[ponder]

I'm 99% sure they will use wood for the roof. There is no material that is as light and as strong. They might make the wood fire-resistant though. The repairs will take decades. See: https://www.bbc.com/news/world-europe-47952055

They could use reinforced concrete like they did with Reims but that would not be a 'proper' restoration.

https://beyondthewindowbox.wordpress.com/2017/06/18/cathedral-details/#jp-carousel-32865

When the cathedral came under direct bombardment in 1914, timber scaffolding around the north tower caught fire and the fire quickly spread to the wooden roof structure. Timber was in short supply when rebuilding work started in 1919, so the roof was reconstructed with reinforced concrete beams, faithfully recreating the old structure. This beautiful, shadowy space above the stone vaulting of the knave has the feel of an old up-turned boat. The concrete beams are secured with oak pegs, to give a little flexibility.

 

[Gordon_R]

They could use reinforced concrete like they did with Reims but that would not be a 'proper' restoration.

https://beyondthewindowbox.wordpress.com/2017/06/18/cathedral-details/#jp-carousel-32865

Interesting. However, reinforced concrete is the worst possible material you could use, if you expect durability beyond 150-200 years.

All of the modern bridges will soon fall down, or be demolished, long before the ancient monuments made of stone and cement.

 

[daveza]

^^ I imagine the weight of concrete would make it a non-starter.

 

[f2wohf]

Is it really true that the French grow special oak trees for the Notre Dame @f2wohf ?

That is so...French, if true.

No, we're not even sure the frame will be in wood again, might actually be in concrete or steel.

 

[f2wohf]

Just saw now they are going to have a competition for the best new design of replacement spire? Uhm... Why a new design?

The spire was from the 19th century, not original at all.

 

[f2wohf]

They could use reinforced concrete like they did with Reims but that would not be a 'proper' restoration.

https://beyondthewindowbox.wordpress.com/2017/06/18/cathedral-details/#jp-carousel-32865

I would actually rather have that than another wooden frame.

 

[ponder]

^^ I imagine the weight of concrete would make it a non-starter.

Not a huge difference between reims & notre dame, reims is a bit bigger, same initial architect.

 

[ponder]

I would actually rather have that than another wooden frame.

It would probably be cheaper and quicker as well.

 

[Gordon_R]

Pretty astonishing interactive 3D video of front and inside of cathedral:
https://www.bbc.com/news/world-europe-47967759

 

[¯\_(ツ)_/¯]

Interesting. However, reinforced concrete is the worst possible material you could use, if you expect durability beyond 150-200 years.

All of the modern bridges will soon fall down, or be demolished, long before the ancient monuments made of stone and cement.

https://theconversation.com/the-problem-with-reinforced-concrete-56078

That is why I can only smile or shake my head at some of the comments on the Vanderbijl school collapse and the JHB M2 brige comments.

I hope that most people know the world plumber comes from the Latin name for lead-worker. See: https://www.merriam-webster.com/dictionary/plumber

I knew that, really ...

 

[Gordon_R]

Moderately interesting video about the fire by Professor Simon Holland, who lives in France:

 

[f2wohf]

Interesting. However, reinforced concrete is the worst possible material you could use, if you expect durability beyond 150-200 years.

All of the modern bridges will soon fall down, or be demolished, long before the ancient monuments made of stone and cement.

I'll guess we'll have enough historical feedback soon thanks to Reims cathedral.

Its reconstruction is from 1919.

 

[daveza]

Do we have any Parisians here - I'm trying to identify the domed building bottom left but the extreme perspective compression is confusing me.

 

[bwana]

Do we have any Parisians here - I'm trying to identify the domed building bottom left but the extreme perspective compression is confusing me.

View attachment 648374

The Panthéon?

 

[daveza]

It's not the same.






I've looked at all of these and still can't find a match.

https://en.wikipedia.org/wiki/List_of_domes_in_France#Paris

 

[Gordon_R]

Sorry, so many domes in Paris. Most likely: https://en.wikipedia.org/wiki/Les_I...drale_Saint-Louis-des-Invalides,_140309_2.jpg

Edit: When I was in Paris (in 1990) there is one location where you can get 4 domes in the same telephoto image...