Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations KootK on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Miami Beach, Champlain Towers South apartment building collapse, Part 09 139

Replies continue below

Recommended for you

Good eyes Demented, that looks like the same area as the unburied version looked to be.

I don't know if you've watched this video or not, but they really put a lot of focus on this white vehicle. Which reminded me of our discussion on the CRV yesterday....

 
The 2017-2020 MDX? Yeah, I noticed it. Early morning hours, around 6:50AM-7AM that day they lifted it out. That's all I know before I had to leave for work that morning.
They were passing cars along with excavators to that spot to lift out. An assembly line of sorts. I do believe this was parked under the demo'd building, almost on top of a curb, on the top level of collapsed decking.Edit: Looks like I believe wrong.

Edit for below: Yes Thermo, Honda/Acura the same.
All hail our SAE overlords.

I think I need to go back to that world. This south Florida structural stuff scares me. Any engineers/inspectors in the area, spend a week working with a staffing firm looking for construction laborers in the area. Let the people work around you when you don't have the clipboard and badge out. They act a whole lot different around you when they think you're one of them. You'll learn a lot in just a week, and it'll help us keep stuff safe.
 
Demented can correct me if I am wrong, but the Logo on the Wheels of the potential white SUV is an Acura Logo, so a Honda Product
 
I found a copy of the surveillance video showing the collapse of Champlain Tower South that has much higher resolution than all other videos. It clearly shows the wall on the roof between the penthouse roof and the normal roof. It also has no blooming of the lights caused by saturation of the camera viewing the original video. This provides a much better understanding of what happens on the roof during the first few frames. It has caused me to reassess my labeling of the floors that collapsed first, which changes what one thinks happened to the penthouse roof.

The video can be found at:
By copying several frames from this video into a PowerPoint document, one can click on the thumbnail images on the left in the document to simulate how the video operates as well as stopping the video and going back and forth between two frames to see what has changed. I tried to attach my copy of a PowerPoint document to save everyone some time, but the upload operation barfed and twice rejected my uploading.

I hope that this video will aid everyone in their understanding of the surveillance video.
 
MarkBoB2 said:
I can count 30 rolls that I can see, with 25 of them on the two left-hand skids. I assumed that the two right-hand skids carried approximately the same number. Some are covered with the bag and some have been used already. I found out that the symmetry was more like 8x6 rolls rather than 7x7 rolls.

Wow.

There are 4 rolls in the front course. You have labeled/counted them 11 times (rolls [1, 2, 7]; [5, 6, 11]; [9, 10, 14], and [13, 30].

There is no right hand skid. There are a few rolls that tipped off the skid in the foreground.

Is anyone else seeing this? One of us is in crazy town.

I move that we add this picture to the spreadsheet and have everyone count the number of rolls of tar paper that can be seen. This will provide a measure of credibility to the various theories/interpretations.

C7351462-825A-46A0-8A6B-DABBBA1439FD_qrajex.jpg
 
Optical98 said:
Ok now on this pic, zoom in to the right of the blue tent as far as you can

Link
Not a Honda/Acura. Is that a Porsche in the pool?

Edit: Yup. I remember people talking about it. Cars with leaking fuel were put in the pool if I am not mistaken. There was an issue with the recovery igniting fires once they got to the garage level because of fuel leakage. Other than here, I have seen/heard nothing about a car hitting a column, if thats where this is headed.
 
Are we really going to argue whether there are 20 or 30 rolls of tar paper on a pallet?
 
I think I can pinpoint the location of that white MDX, or at least offer a point of reference that helps us find the location of the camera within the site. Assuming many things (it was not moved, parking spots did not change):

at 0:07 of the video you can see the front clip of a 2000s Ford Expedition, with an aftermarket bumper guard

82C4DC44-3211-4D65-96DB-F21F486C745C_hgmfey.png


The exact same vehicle is visible in the walkaround of 611 just before they reach the ramp area:

8981CB39-3D01-4C69-B2D1-58AEF799FF07_evb3w5.png
 
Well that's interesting.

@Optical98
And an additional 10 rolls is 600lbs and very relevant to the idea of it being used to load test a newly installed anchor.

Precision guess work based on information provided by those of questionable knowledge
 
Optical98 said:
Are we really going to argue whether there are 20 or 30 rolls of tar paper on a pallet?
Probably not in this thread. WAGs rule the day.
 
Demented, not sure where they pulled it from, it doesn't look as crushed as many we've seen tho.
 
If you crash into K4 with a car resulting in failure, could upper slabs fail due to a a redistribution of load following I, H, and E, leading to the PH roof collapsing as it now meats the shear wall and begins to tear cleanly and dropping roofing equipment on the pool deck, causing the deck to collapse and generate even more load redistribution but now with hinging on the pool deck, causing the now un-collapsed front section of floors Basement up to 8 to collapse, with a pause between front to rear due to a collapse with middle portions of slab between the N and S sides and it needing to catch up, now leaving the East section standing and wobbling badly before losing it's fight with Newton?
 
Demented said:
@Optical98
And an additional 10 rolls is 600lbs and very relevant to the idea of it being used to load test a newly installed anchor.
vs tying off between two anchors and using them to load each other. As we determined elsewhere in the thread.

These rolls are most central to the cockamamie idea that rolling tar paper burst through the parapet wall after the roof partially collapsed due to hammer drilling for Hilti bolts for roof anchors… said tar paper rolls then plummeting to the ground with wayward ac units and tar buggies, crashing through the patio deck ultimately causing the collapse of the entire building. Don’t you remember the tar paper rolls being identified in the TikTok video of the garage collapse?

Pretty sure it’s the same people that could see 7x7 rolls on that pallet as would attest that they can see them in the basement as well.

 
Well maybe the AI software that someone used before could fill that pallet out? Give you a more accurate count?
 
@Spartan5
Oh I do agree it's silly and stupid. What roofing crew are you going to find that's going to lift a 2,000lb pallet over a wall and drop it? Yeah, good luck with that. You'll find that just as easily as you'll find a day crew in FL that does not have at least 2 come alongs on the truck and 10 on order with Merchant Metals or Wurth. If anyone is going to load test it, it's not the workers, it's going to be 1, 2, or 3 of the SI's doing it on site. You can't even trust the $10/h laborers to read a tape measurer accurately, let alone know what load testing is. Skilled labor is hard to come by these days.
 
Ok well, when you put it that way Spar.....

Did you read about my Fire hypothesis? ^^
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor