dik and all,
I took the last cartoon on the "there is no cause for alarm", this is so sad, that even though I tried to have a little humor to move away from the gravity of the situation, it is impossible not to think and worry about the occupants of this and surrounding buildings, and what can...
Where is the Mayor of San Francisco London Breed in all of this? Now we know:
"San Francisco Mayor London Breed seen partying at a nightclub without a mask, report says" Los Angeles Times here:https://news.yahoo.com/san-francisco-mayor-london-breed-193728496.html?fr=sycsrp_catchall
Why...
Warnings About San Francisco Millennium Tower Repair Plans Raised Before Work Began
https://sanfrancisco.cbslocal.com/2021/09/16/san-francisco-millennium-tower-warnings-repair-leaning-fix/
Here is from SEAONC website:
"[SEAONC] Mission: To advance the practice of structural engineering, to build community among our members, and to educate the public regarding the structural engineering profession.
Vision: A world in which structural engineers are valued by the public for their...
Two questions:
1. If it comes to demolishing the MT, how can they do it safely? Explosives cannot be used right?
2. Does anyone know what type of seismic analysis Hamburger and Co. did on MT that was reviewed by Dierlein? Is there anything available on it publicly? If they did the seismic...
It is interesting to go back and watch this CNN (https://www.cnn.com/2021/07/05/us/san-francisco-millennium-tower-sinking/index.html) in June which had a title of " Surfside catastrophe raises concerns about San Francisco's sinking Millennium Tower".
In the video, Ron Hamburger says...
MILLENNIUM TOWER
SF Official Seeks Hold on Troubled Millennium Tower Fix
By Jaxon Van Derbeken • Published September 10, 2021 • Updated on September 10, 2021 at 8:17 pm
https://www.nbcbayarea.com/investigations/sf-official-seeks-hold-on-troubled-millennium-tower-fix/2653243/
Promise, this is the last "no cause for alarm" until Hamburger, Deierlein, Moehle, SEAONC ex-president Guglielmo ,or ...say it again ... I just couldn't resist....
dik,
Speaking of reporters, Jaxon van Derbeken is quite good at investigative reporting on engineering problems. If I remember it correctly, he discovered the anchor bolt fractures in the new Bay Bridge, a few months before it opened. He also discovered and reported on the fracture of welds at...
In that interview that was posted earlier, and in it the former SEAONC president Guglielmo says about Millennium's misery that "there is no cause for alarm" , if you go to the video-time of 3:50, Supervisor Peskin says (for the first time?) that all options are on the table and the building...
I had missed this news report on how stoppage of pile operation actually was forced on the project while Ron Hamburger, the EOR of pile retrofit was downplaying the importance of the sudden settlement. Read the full report...
Apparently, for the Pisa Tower also, a sudden tilting has occurred due to disturbing the soil on the leaning side by the Architect causing the suden leaning. Please see the highlighted part below (from the same Burland Paper...
Anyone interested, here is a paper by Prof. Burland on stabilizing Pisa Tower. The photo below is from this paper.
https://scholarsmine.mst.edu/cgi/viewcontent.cgi?article=2604&context=icchge
Best
Here is a great article:
"The man who saved the Leaning Tower of Pisa, By Andy Pearson 14 September 2000" with this link: https://www.building.co.uk/focus/the-man-who-saved-the-leaning-tower-of-pisa/1455.article
The man is John Boscawen Burland CBE FRS FREng (born 4 March 1936), an Emeritus...
apper.42,
Thank you for posting Alan Davenport link. I did not know him in person, but, knew what he has done in wind engineering. It was great to read the material. He was truly the father of the modern wind engineering, especially wind tunnel testing of buildings.
Thanks
Dik,
You say: "Rather than think climate change and the corona virus as science, think of it as the wrath of God. Feel any better?"
Do you know that this Berkeley Professor who is probably the most responsible person for this fiasco blames God for it. See the 2017 story here...
Here is the Karp-Kardon report from 2019 predicting what's happening to the tower now: http://www.lbkarp.com/mi/Millennium%20Report%207-10-19c.pdf He and Kaplan wrote this report for the City of San Francisco in 2019.
He was interviewed recently here...
