Eiffel Tower in Need of Repair
Eiffel Tower in Need of Repair
(OP)
https://www.dailymail.co.uk/news/article-10983409/...
They need to dig up a good coating specialist.
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates
-Dik
They need to dig up a good coating specialist.
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates
-Dik
RE: Eiffel Tower in Need of Repair
Riddled with rust does imply structural deficiency. That would be an engineering disaster.
But, now that the post is here and maybe our coatings engineers will be floating around, does anybody have experience with gelled calcium sulfonate based coatings? They seem like they would be ideal for this case as they require minimal prep work and most of the steel is not accessible to tourist's fingers. I'm interested in bringing said coatings into the marine industry.
RE: Eiffel Tower in Need of Repair
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates
-Dik
RE: Eiffel Tower in Need of Repair
It's important to remember that the latter was build with 21st Century technology (well, 20th, anyway), as opposed to that old one. Which, by the way, is NOT made of concrete. Sad!
The Eiffel Tower is over a hundred years old! It should be torn down and replaced with affordable housing. With retail on the lower floors. But NO parking!
spsalso
RE: Eiffel Tower in Need of Repair
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates
-Dik
RE: Eiffel Tower in Need of Repair
Bitter subject. I work in the only county in the USA that has a mask mandate... Quad vaccinated mask wearing Fauci is on his COVID rebound after taking his first round of Paxlovid... I can't even catch the dang virus. It finally made it's round through my company and I got conjunctivitis instead.
RE: Eiffel Tower in Need of Repair
RE: Eiffel Tower in Need of Repair
No major side effects, extremely low adverse effect. 100 times less than the contraceptive pill.
2nd gen in testing for the vector vaccines which is going for a different bit of the virus that the spikes. mRNA vaccines have been re engineered and tested on rats and should be released soon. They are on the test regime the same as the flu vaccine.
And cases of Omicron A5 are rocketing. The old vaccines have zero ability to stop catching it. But significantly reduce fatality rate. But as most have had the virus or already vaccinated the pro's don't think it's worth while doing another round of boosters with mass population. Just targeted groups
RE: Eiffel Tower in Need of Repair
RE: Eiffel Tower in Need of Repair
The Eiffel Tower is France's answer to the Brooklyn Bridge. Someone is always claiming that they are going to scrap it, and that they are authorized to sell it to you.
--
JHG
RE: Eiffel Tower in Need of Repair
this is second hand information from unnamed and anonymous sources and from unnamed "reports" published in a rag. I would take this with a few grains of salt
RE: Eiffel Tower in Need of Repair
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates
-Dik
RE: Eiffel Tower in Need of Repair
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates
-Dik
RE: Eiffel Tower in Need of Repair
https://www.google.co.uk/amp/s/amp.theguardian.com...
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Eiffel Tower in Need of Repair
according to the article, it has been painted at least 20 times which indicates a fairly good maintenance schedule (at least for the painting). and I would expect it does have some problems, but would really like to see an engineering inspection report, not an editorial piece in the daily mail...
RE: Eiffel Tower in Need of Repair
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates
-Dik
RE: Eiffel Tower in Need of Repair
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates
-Dik
RE: Eiffel Tower in Need of Repair
https://www.painttalk.com/threads/repainting-the-e...
That means SSPC-3 for prep and no control of mils during paint application. That would explain the frequent repaint interval.
RE: Eiffel Tower in Need of Repair
Of course, after 20 years, the tower had became an even more famous symbol of Paris (although not all Parisians would agreed with that) and so the plans for dismantling it were abandoned altogether.
John R. Baker, P.E. (ret)
Irvine, CA
Siemens PLM:
UG/NX Museum:
The secret of life is not finding someone to live with
It's finding someone you can't live without
RE: Eiffel Tower in Need of Repair
RE: Eiffel Tower in Need of Repair
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates
-Dik
RE: Eiffel Tower in Need of Repair
Wrought iron - what is reportedly used in the Eiffel tower is very low carbon content (less than 0.08%), semi-fused mass of iron with fibrous slag inclusions (up to 2% by weight). In other words it is a composite material. It has better inherent corrosion resistance that uncoated steel.
Wrought iron is not generally considered a weldable steel (by arc welding process), but is very easy to drill, so it is ideal for riveted construction.
Wrought iron is no longer produced on a commercial scale,
My guess is that the lack of good surface prep has compromised the applied coating systems.
RE: Eiffel Tower in Need of Repair
I would concur with that... big time.
I understand that there's a fairly high demand for 'real' wrought iron. Not sure, but have heard that...
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates
-Dik
RE: Eiffel Tower in Need of Repair
Six years ago I did a full restoration of a Singer 66-4 sewing machine which was manufactured in 1927 (for a more comprehensive review of the restoration effort, please visit Singer Sewing Machine Restoration).
That being said, the lower framework of the sewing machine base was made of wrought iron, as seen in this photo (taken before I started the restoration):
May 2016 (Sony a6000)
And here were all of the pieces before I took them to the sandblasting shop to get all the old paint removed:
May 2016 (Sony a6000)
When I went to pick-up the sandblasted parts, I was told that I should get at least one coat of paint on them within 24 hours, otherwise they would start to rust. I put my first coat of primer on them before I went to bed that night as I was taking no chances.
BTW, this is what the fully restored sewing machine looked like when I was finished (as I said, if you want a more detailed review of the entire restoration project, click on the link I posted above):
July 2016 (Sony a6000)
John R. Baker, P.E. (ret)
Irvine, CA
Siemens PLM:
UG/NX Museum:
The secret of life is not finding someone to live with
It's finding someone you can't live without
RE: Eiffel Tower in Need of Repair
Also aluminum, in which the oxide on the outside protects the inside. Different chemical processes, I think, but similar result.
I doubt the Eiffel tower will ever have all the old coatings removed. Best to just continue to remove the loose stuff, and recoat with surface tolerant coatings.
RE: Eiffel Tower in Need of Repair
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates
-Dik
RE: Eiffel Tower in Need of Repair
I think it's best to remove the old stuff and use a proper coating system.
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates
-Dik
RE: Eiffel Tower in Need of Repair
May 2016 (Sony a6000)
John R. Baker, P.E. (ret)
Irvine, CA
Siemens PLM:
UG/NX Museum:
The secret of life is not finding someone to live with
It's finding someone you can't live without
RE: Eiffel Tower in Need of Repair
As to removing all the old stuff, I doubt that is at all practical. Yes, it would certainly last longer that way, but how would you do it?
RE: Eiffel Tower in Need of Repair
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates
-Dik
RE: Eiffel Tower in Need of Repair
Another opportunity for a "post modern" viewpoint:
A competition to replace the tower. It is over 100 years old, a clear signal based on news reports that it has exceeded its life.
The rules:
It must be concrete, with perhaps some highly stressed steel stuff inside. That will never rust.
It must be asymmetrical, because symmetry is colonial. Or maybe imperial.
It MUST have affordable housing and no place to park the cars of the people who live in the affordable housing. What the HELL are we letting THOSE people have cars for, anyway?
The submissions must post-date the collapse of the Millennium Towers, because...of the symbolism...which is post capitalistic..I think.
I'll have another martini!
Thanks,
spsalso
RE: Eiffel Tower in Need of Repair
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates
-Dik
RE: Eiffel Tower in Need of Repair
But if we were to assume the Tower had to be replaced, what would it be?
Exposed-structure steel/iron is hugely out of fashion. It's likely because concrete is cheaper to use, rather than artistic whim. Which would reinforce the use of concrete for the replacement: "Not only is it built "the current way", but it's cheaper."
Asymmetry in building shape has become a way for buildings to be "different" and more notable than the old symmetric skyscrapers.
And affordable housing? It's what you do to get government approval for your project, and to perhaps deflect protesters and activists.
This all assumes that the old one wouldn't be replicated, of course.
spsalso
RE: Eiffel Tower in Need of Repair
TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! https://www.youtube.com/watch?v=BKorP55Aqvg
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers Entire Forum list http://www.eng-tips.com/forumlist.cfm
RE: Eiffel Tower in Need of Repair
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates
-Dik
RE: Eiffel Tower in Need of Repair
Exposed rivited construction is no harder to repaint than anything else until it gets corrosion inside of rivited joints which then must be disassembled to repair. That gets really expensive. I once worked on a gantry crane with that problem, we eventually cut it up for scrap.
Surface prep for a structure like the Eiffel tower usually involves abrasive blasting. Controlling the dust even in the unlikely event there is no led paint requires tenting the structure.
I also have one of those singer sowing machines, probably the same model as Mr Baker. My bet is the frame is cast iron, rather good quality. There may be a high demand for artistic wrought iron (touched by a blacksmith), but there is no commercial source for actual wrought iron, and no active ASTM numbers for the material.
This company still sells wrought iron (recovered from scrap) in small lots. https://www.realwroughtiron.com/about-wrought-iron...
RE: Eiffel Tower in Need of Repair
https://www.bbc.co.uk/news/uk-scotland-edinburgh-e...
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Eiffel Tower in Need of Repair
The road bridge was a completely different set of on going nightmares
RE: Eiffel Tower in Need of Repair
https://duckduckgo.com/?q=bridges+designed+by+eifl...
A black swan to a turkey is a white swan to the butcher ... and to Boeing.
RE: Eiffel Tower in Need of Repair
If it doesnt then we'd have a legitimate engineering disaster worth discussing.
RE: Eiffel Tower in Need of Repair
RE: Eiffel Tower in Need of Repair
That's definitely a concern, given the rise in cases due to BA.1 and BA.2
TTFN (ta ta for now)
I can do absolutely anything. I'm an expert! https://www.youtube.com/watch?v=BKorP55Aqvg
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers Entire Forum list http://www.eng-tips.com/forumlist.cfm
RE: Eiffel Tower in Need of Repair
Vaccines and previous infection to other variants make absolutely zero difference to your likelihood of catching it or the severity of symptoms.
The only thing is your less likely to get extreme fatal symptoms.
Apparently it's an utter swine to boot. And that's from someone who got alpha, delta and the first Omicron. And has just gone through this one. And he said he thought he was a goner this time because he felt so ill but his blood O2 stayed up. He said it was worse than malaria and lasted longer.
RE: Eiffel Tower in Need of Repair
RE: Eiffel Tower in Need of Repair
There seems to be a link with blood group.
The guy I know who has had it 4 times now is AB+. My family the others are B+. I am O-. Don't know anyone who is O neg that has tested positive. But there isn't that many of us about.
RE: Eiffel Tower in Need of Repair
John R. Baker, P.E. (ret)
Irvine, CA
Siemens PLM:
UG/NX Museum:
The secret of life is not finding someone to live with
It's finding someone you can't live without
RE: Eiffel Tower in Need of Repair
My brother in law aged 35 AB+ was extremely ill with it to the point of calling an ambulance. O2 was just above the red line so he stayed at home. 5days he was very sorry for himself.
Me I had a sweating 5 year old clinging to me for 18 hours. And was tested 3 times over the next two weeks negative every time. I might add said 5 year old the next morning got up at 8 ate 3 eggs a packet of bacon plus 4 slices of toast and 3 sausages and then put his snow suit on and legged it before his mother could ground him for being ill.
Which I got a bollocking for. Lunch was getting on for a kg of Shepard's pie I had made for that evening. I managed to prevent the afternoon grounding by pointing out the protein calorie load he had eaten in the last 6 hours he didn't seem very sick to me now. Plus being stuck inside with a load of sick adults when he could be sledging in the snow wasn't the best.
He demolished fries and bakebeans for dinner that night. And I was the only one who could smell the results of that diet thankfully.
I might add my bil still has issues which he didn't have before it. Although there could be a link to vodka consumption
I must be in triple figures getting my nose pulled through testing since it started. It's only in the last few months it hasn't been at least once a week.
RE: Eiffel Tower in Need of Repair
RE: Eiffel Tower in Need of Repair
And a few cheeky comments limit the depth some are wanting to stick the swab in.
RE: Eiffel Tower in Need of Repair
RE: Eiffel Tower in Need of Repair
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates
-Dik