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  1. 3DSoftwareDev

    Miami Beach, Champlain Towers South apartment building collapse, Part 07

    My apologies, I read "beams" and thought "columns" because at some point previously in these threads, someone conflated the two and now I'm screwed up. [glasses] Yes, that beam assembly is certainly more clear than whatever remains of the columns. It was discussed previously; there are some...
  2. 3DSoftwareDev

    Miami Beach, Champlain Towers South apartment building collapse, Part 07

    lol. Like with many, many photo analyses on these threads, I have to wonder: how can you possibly see that? This image is 640x412, and rife with jpeg artifacts. I can only tell that some sort of something was at each column location. The state of the column and how intact it is? No way. Maybe...
  3. 3DSoftwareDev

    Miami Beach, Champlain Towers South apartment building collapse, Part 07

    I don't think any slab with remnants of tile and grout lines like that would be from the pool deck. The pool deck slab had a waterproofing layer, a layer of sand, then pavers (and maybe other layers), but not tile that was attached directly to the slab. In fact, the second-to-last photo looks...
  4. 3DSoftwareDev

    Miami Beach, Champlain Towers South apartment building collapse, Part 07

    I disagree. This isn't a wood-framed house. The columns in a concrete structure like this are the primary load-bearing elements, so I doubt the removal of interior unit walls has much of an impact. The only walls that would make a difference would be the few shear walls around the vertical...
  5. 3DSoftwareDev

    Miami Beach, Champlain Towers South apartment building collapse, Part 07

    The cones aren't always over columns. On-site folks are moving them around sometimes. Yesterday, this cone was over a column but these people came by, chatted for a few minutes, then picked this cone up and moved it a few feet away for some reason. It remained there for the rest of the day.
  6. 3DSoftwareDev

    Miami Beach, Champlain Towers South apartment building collapse, Part 06

    Has anyone noticed in this YouTube video that the column in front of the camera, and the column line further from the camera, are not aligned? Is this shown on the plans? I don't recall seeing a grid misalignment like this, but maybe I missed it. If so, any idea why it would be misaligned?
  7. 3DSoftwareDev

    Miami Beach, Champlain Towers South apartment building collapse, Part 06

    @CE2537: If the post above yours, that the camera is 36" off the left wall and 88" off the south wall, is even remotely accurate, I don't see this theory holding up. I tend to agree with the positioning assertions that this credenza/furniture is not pushed up against either wall, so for the wall...
  8. 3DSoftwareDev

    Miami Beach, Champlain Towers South apartment building collapse, Part 06

    Murph 9000's hypothesis several messages above does a good job (in my non-SE opinion) of tying together the various bits of evidence with a plausible sequence of events.
  9. 3DSoftwareDev

    Miami Beach, Champlain Towers South apartment building collapse, Part 06

    The nice comments are appreciated, thanks! I actually think it could make sense: - There's a column visible embedded in the wall, right near this object. - Perhaps the floor has detached from the column. The floor slab may be sliding down but the column may not be. - In this break between the...
  10. 3DSoftwareDev

    Miami Beach, Champlain Towers South apartment building collapse, Part 06

    I don't want to belabor this because I get the distinct feeling some here think the interior video provides nothing of value (and as non-SEs, we're subject to snipey comments about our background and how we know nothing), but: I tend to disagree. The camera is sitting on some table, and the...
  11. 3DSoftwareDev

    Miami Beach, Champlain Towers South apartment building collapse, Part 06

    Could the movement of the tall, black object on the right be due to the following? - The floor slab has disconnected from the column - The floor slab is falling while the column is not - But the column still has some chunks of floor attached to it, which is creating the effect of the...
  12. 3DSoftwareDev

    Miami Beach, Champlain Towers South apartment building collapse, Part 06

    Good eye. If that is indeed a hanging picture, seems like it remains almost exactly vertical, so that does give weight to the theory that the room (or the camera) is not tilting, at least not as much as I illustrated in my 3rd original GIF.
  13. 3DSoftwareDev

    Miami Beach, Champlain Towers South apartment building collapse, Part 06

    Did you miss the beginning of the thread? Scroll up. The uncropped versions are in my post at timestamp 13 Jul 21 03:59. I can't seem to find a way to link to a specific post, or I would (is it possible?). Here's the actual Twitter video, completely unaltered...
  14. 3DSoftwareDev

    Miami Beach, Champlain Towers South apartment building collapse, Part 06

    In my original post with 3 GIFs from the Ring video, I referred to tilting of a "refrigerator" - but I wasn't talking about the stainless steel refrigerator that is on the left near the doorway. Instead, I was referring to the tall, black shape on the right, behind the couch and chairs, which...
  15. 3DSoftwareDev

    Miami Beach, Champlain Towers South apartment building collapse, Part 06

    Hardly. Vector is a mathematical term, and I use it as such. I'm talking about physics, not metaphysics. If this is some reference to what you think my background is, I'm formerly an architect. I've never been in animation. I'm pulling from my experience on many, many demolition sites (I'm...
  16. 3DSoftwareDev

    Miami Beach, Champlain Towers South apartment building collapse, Part 06

    I don't know about this. If you watch the controlled demolition videos, many glass doors and windows stay unbroken as the building is falling, but are clearly deflecting during that time. Wouldn't we also hear the glass shattering during the video since the slab distortion is getting worse...
  17. 3DSoftwareDev

    Miami Beach, Champlain Towers South apartment building collapse, Part 06

    Yes, good idea, I thought about doing this forward/backward version last night. This is 4x speed, instead of 8x.
  18. 3DSoftwareDev

    Miami Beach, Champlain Towers South apartment building collapse, Part 06

    I'm under the impression that the building starts progressive collapse in the final 1-2 seconds of the video. In the original footage, with audio, you can hear a terrifying rumbling begin right at the end before the power cuts out. It's also around this time that the floor and ceiling are...
  19. 3DSoftwareDev

    Miami Beach, Champlain Towers South apartment building collapse, Part 06

    I haven't seen a section through a typical unit, but I assumed these units were finished with a sheet of painted drywall at the ceiling, perhaps dropped down from the slab to hide plumbing and HVAC. But if it's actually the painted bottom of an exposed slab, then I'm wrong, and the powder would...
  20. 3DSoftwareDev

    Miami Beach, Champlain Towers South apartment building collapse, Part 06

    I read somewhere that Rosie, the owner of Unit 711 and the Ring camera, confirmed that the TV box that snaps/shifts midway through the video is indeed empty. I'm struggling to find it though. Will update this when I do. I also find it odd that more objects are not sliding around during this...
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