Miami Beach, Champlain Towers South apartment building collapse, Part 10 79

[SFCharlie]

A continuation of our discussion of this failure. Best to read the other threads first to avoid rehashing things already discussed.
Miami Beach, Champlain Towers South apartment building collapse
Miami Beach, Champlain Towers South apartment building collapse, Part 02
Miami Beach, Champlain Towers South apartment building collapse, Part 03
Miami Beach, Champlain Towers South apartment building collapse, Part 04
Miami Beach, Champlain Towers South apartment building collapse, Part 05
Miami Beach, Champlain Towers South apartment building collapse, Part 06
Miami Beach, Champlain Towers South apartment building collapse, Part 07
Miami Beach, Champlain Towers South apartment building collapse, Part 08
Miami Beach, Champlain Towers South apartment building collapse, Part 09


SF Charlie
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[SFCharlie]

the one I downloaded before has 22 frames, is there a new one with more frames?

The new one I posted still goes to frame 33, but I removed the apparently duplicate frames.
I'm still working out some process issues, before I go full bore on the some 200 odd frames I have dumped out.
Thanks

(the attached is a work in progress. I stopped because I was too tied to risk flummoxing it up...)

 

[SFCharlie]

And all of this based on a video of a video; both of which have been smooshed more than a Vegas escort. (But we’re gonna try to fix it with PowerPoint.)

I know I can't fix the video, it is unfixable!

I'm just trying to extract what info is in it without making up any of my own.

SF Charlie
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[Demented]

@Js518 @sfcharlue
Permit 09-00000261 I believe it is off the top.of my head. Field notes. If you can make it through the chicken scratch rush job resemling homework of Bart Simpson.
01-00000232 and 02-00000020 too.

 

[LionelHutz]

And despite the video being blurry, it’s also easy to make out the white stucco band on the K column, and it doesn’t seem to have moved in the first 34 frames, despite the collapse being well underway.

Post a picture with an arrow to this white stucco band, because I don't see it. Maybe you think the dust cloud is a band?

 

[LionelHutz]

Js5180

Can you explain what parts of the building the 3 arrows are pointing to?

 

[sgw1009]

SFCharlie - There is a computer app named VideoPad Video Editor that has a video stabilization feature. You can easily find it through Google. I downloaded and installed it to play around with the video stabilization on the Ring camera video. If you have a copy of the collapse video in video form (a stream and not just a collection of individual pictures), you might try this app. For me it was free. And it did stablize the Ring camera video, but the stabilized video was really no more informative than the original. But it might be worth a try on the collapse video.

 

[Js5180]

Lionel - those are the upper floors, collapsing mostly inward.

White stucco bands are the two vertical white lines:

 

[spsalso]

I can’t find a good image of the conduit. I’d agree if the wires pulled completely out there’d be no arcing from the conduit. I’d like to see a clear image of the conduit breaks. The best ones I have seen have it bending down, rather than shearing off.

The ones I'm thinking of in the photos are indeed those "bending down, rather than shearing off."

There were photo samples from at least two vertical locations. Something like 24 pipes. Maybe more. I saw no wire hanging out of any of them. Where did it go? Not INSIDE the still-standing part of the building. It went down with the crash. Therefore I say all the feeder wires were pulled out of the pipe by the crash. In that case, the disconnection had to have happened either inside the remaining conduit, or more likely at a physical weak point, like where the wires entered their circuit breaker. In those cases, any flash from a short would have been concealed from view.

Thus my problem with calling those flashes electrical in nature.

I do agree they LOOK that way. That was my first reaction. But I'm now not seeing how it would happen.


I suppose there were other circuits crossing the barrier between the remaining building and the falling part. Perhaps it was one of those. Hallway lighting? Seems awfully big and bright for just a 20 amp circuit failing, though.


spsalso

 

[Aleeeex]

I think this video explains some good points

https://youtu.be/rUjRI5Hn4kw

 

[SFCharlie]

There is a computer app named VideoPad Video Editor that has a video stabilization feature.

Thanks for the tip.
Thank you.

SF Charlie
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[SFCharlie]

the one I downloaded before has 22 frames, is there a new one with more frames?

Sorry, I guess I was too tired and I flummoxed attaching the file. Here it is:

The new one I posted still goes to frame 33, but I removed the apparently duplicate frames.
I'm still working out some process issues, before I go full bore on the some 200 odd frames I have dumped out.
Thanks

(the attached is a work in progress. I stopped because I was too tied to risk flummoxing it up...)

SF Charlie
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[SFCharlie]

Thank you for the tons of work you have done researching permits, repairs, remodels, and local knowledge. You have added a huge amount of information to our understanding of this tragedy!

SF Charlie
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[SFCharlie]

Can you explain what parts of the building the 3 arrows are pointing to?

Js5180, Please correct me if I'm wrong, Thanks


The top two point to the 13th floor PH roof parapet, and the 12th floor PH roof parapet that wraps around the PH.

SF Charlie
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[SFCharlie]

White stucco bands are the two vertical white lines:

It strikes me as strange, that you should choose a frame where one of the vertical white lines is obviously broken to make your case?


SF Charlie
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[rodface]

Thanks to those who pointed out the issues with the model.
The main goal of the model was to get a sharp view of the intact building's forms as seen from the CCTV perspective. I don't know the exact location of the camera on the adjacent property, nor its height above ground, so I made a best guess and adjusted the camera focal length until everything looked close.

I have added :
-the missing parapet on floor 12
-improved windows/glazing

I have not yet modelled:
-glazing on West facade
-glazing on 1st floor
-glazing on 13th floor (PH)
-balcony railings throughout
-I see now that 2 columns of windows are missing in the "elbow"
New rendering:

 

[SFCharlie]

The main goal of the model was to get a sharp view of the intact building's forms as seen from the CCTV perspective.

Thank You!
I know this represents a large amount of work!

May I please use this as an introductory slide in my PowerPoint?


SF Charlie
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[SFCharlie]

The main goal of the model was to get a sharp view of the intact building's forms as seen from the CCTV perspective.

Thank You!
I know this represents a large amount of work!
It looks great!

Maybe the camera could be a little to the left, a little down, and closer (more wide angle)
I'm probably asking too much, sorry.

SF Charlie
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[rodface]

Edit: Thank you sir, I will try fine-tuning the camera. I have never received proper training in AutoCAD rendering for architectural presentation so bear with me please

Edit2: And yes please feel free to use these.

Rendering with reference objects aligned with CCTV frame for reference. Something is still not quite right about the positioning of the camera and/or the reference objects.

Added the missing columns of windows. Noticed another missing column of windows at far right on floors 2-9.

 

[Spartan5]

I recommend that people rewatch the Building Integrity video from 3+ weeks ago where he conducted an analysis of the potential that the roof had collapsed first based on the CCTV video and debris: Did it start at the roof?

It also seems apparent to me, without powerpoint analysis, that you can see the whole penthouse roof with intact parapet tilting forward between the 2 and 3 second mark of the video.

 

[BKNJ]

When the power went out, the front doors locked. Surely this would be a safety violation? Maybe the doors weren't actually locked, but when the other side of the building collapsed, it jammed the doors?

When the bulk of the collapse happened, it seems in photos that the stucco ceiling going across the front of the first floor detached from the slab and fell across the driveway and right over a black SUV parked there. I suspect that this blocked the front doors and it wasn't immediately realized in the dark and confusion.

The guard was helping people escape from the basement. It's unclear how she got there, being as how there's no access to the stairs from the lobby?

I also questioned this, as it would be a long walk around to the beach side to get easy access to the pool deck. I imagine she could have climbed down near where the sideways car was, as she got an injury at some point.

BKNJ