There have been weekly reports on settlement of this building:
https://www.sf.gov/resource/2022/monitoring-reports-about-millennium-tower-retrofit
The latest one is dated July 29, 2024.
I wonder at the length of the latest "week".
spsalso
Seems like the extractor of the oil under the property might be required to put it back--to "make him whole".
Sort of a corollary to the Hawaii story.
spsalso
Twice, doing electrical work in San Francisco, I discovered that the old gas lighting lines in the ceiling were still live.
I proposed to one owner that they re-install the gas lights, but there was a lack of interest shown.
Last I looked, there was a working gas light at Heinhold's First and...
The article is such an interesting read.
The report cites 5 particular causes for the failure. Three of those were site conditions. There are those of us who feel that if you can't design for the site conditions, you should not take the job. And there are those of us who feel that if you...
Besides Sal with his "What is going on with shipping", there's also this guy, who seems pretty sharp:
https://www.youtube.com/watch?v=TpwTWcd4Efo
spsalso
As has been pointed out repeatedly in mass media, container ships have been getting larger and larger and HUGE-ER!
And that has been happening over the past 50 years, or so.
So, although it's a surprise to mass media, it wouldn't be a surprise to anyone dealing with ocean shipping. Like...
"Pretty sure piers are NOT designed for a fully loaded container ship to impact them, regardless of speed. Let's be more judicious on the whole "defective design" folks. Find a referenced standard and know what you're talking about, please."
Well, yeah. That's why they put fenders around them...
But the plume started before the second time the lights went off.
The lights came back on, the first time, at 2:23
The smoke plume started at 2:35
The lights went off the second time at 3:29
The plume was emitted until impact, or thereabouts.
By the way, Sal's doing his usual great job of...
In the video, a short while after the lights come back on the first time, there is a smoke plume out of the ship's stack, and it continues right up to the strike. I suspect the engine stopped, causing the lights to go out. Then it was restarted, with the plume signifying it had not settled...
It's my belief that one cannot quench harden brass.
I've just run into someone who insists it can be done. He says he's done it. "And my Professor of Metallurgy at Stevens even mentioned it in class when we were discussing brass vs. bronze."
Can someone come up with some documentation for...
Budd was building stainless passenger cars for years--since before WWII. Some are still around.
They likely didn't/don't get much salt exposure, though.
spsalso
The city of Pittsburgh was owner of the failed bridge.
The city of Pittsburgh was aware, or should have been aware, of the condition of the bridge, and that it needed repair.
The city of Pittsburgh took no action to do those needed repairs.
As a result, the bridge failed and people were hurt...
"It distresses me that there was no one charged with criminal negligence for all the deaths."
Who is still alive who might be charged?
Notably missing, however, is any interest by any governmental authority to examine and make public whether there WAS such negligence.
spsalso
"So what is the thinking here?"
My thinking here is that:
The structural engineer never showed up to do the rebar inspection. And that the pour happened anyway.
OR
The structural engineer showed up to do the inspection but did a thoroughly inadequate job.
OR
The structural engineer showed...
So then the Code used for the Tretten bridge allowed for using untested (experimental) methods. We know this because those methods DID fail. And a point of a Code is to disallow failure: "Oh, just put up anything you like, and we'll see what happens."
spsalso
Jeff Ostroff has a new Youtube video on the building:
https://www.youtube.com/watch?v=jBzDtdZlXx0
He describes in the early parts that NIST discovered a severe lack of rebar crossing the columns in the pool deck area. He mentioned that the structural engineer would surely have been upset if...
I think that it should be remembered that the most important goal of the analysis of this bridge failure is to eliminate any blame for any of the entities involved. That can take a good bit of time and effort--it's not as easy as it looks!
spsalso
