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  1. zebraso

    Miami Beach, Champlain Towers South apartment building collapse, Part 19

    It may just be as relevant as anything that has been discussed. The thing that seems ambiguous, is regarding the qualification that the loading conditions and patterns have not changed and that such can be determined without verifying the original design. It sounds like white wash to me. In and...
  2. zebraso

    Miami Beach, Champlain Towers South apartment building collapse, Part 19

    You make a strong case. The underlying current in the victim blaming seems to be that if they had only done more assessments and done them earlier over time that fatal flaws would have been detected. You are making the strong case (I think) that this is simply not true. It may be the most...
  3. zebraso

    Miami Beach, Champlain Towers South apartment building collapse, Part 19

    So instead of negligence then, we would be broaching the subject of criminal malfeasance. Very interesting. It would seem only reasonable and responsible to consider this possibility.
  4. zebraso

    Miami Beach, Champlain Towers South apartment building collapse, Part 19

    Yeah. So what is the thinking here? It does not seem plausible that it was an error or "mistake". Were there last minute calculations based on some revised load estimates? Seat of the pants to save a few bucks? Anything? I know it's wrong but why was it done this way? I can't believe they missed...
  5. zebraso

    Miami Beach, Champlain Towers South apartment building collapse, Part 19

    The step beam and beam type A deleted from plans stamped 1981 vs original (1980). This was noted a long time back in this topic. Are these beams present on the North Champlain Tower? Maybe this was mentioned somewhere in the past 18 pages. If so it's one less reason to be overly concerned about...
  6. zebraso

    Miami Beach, Champlain Towers South apartment building collapse, Part 19

    Is this some type of convoluted logic puzzle? Certainly if the deck could have been cleanly separated from the building in a timely manner the collapse would not have progressed to the tower. As stated in the question and answer period for the recent WJE webinar/report, Gary Klein answers that...
  7. zebraso

    Miami Beach, Champlain Towers South apartment building collapse, Part 18

    That's what I was trying not to see. That was not what I was thinking I should see. What accounts for the appearance that the penthouse looks like it is leaning/moving north? Edit. well I thought of something anyway. That' a thin section of the penthouse. It's not too much to think that the...
  8. zebraso

    Miami Beach, Champlain Towers South apartment building collapse, Part 18

    au contraire. So to be clear the penthouse roof is seen hinged down with the far parapet visible. I don't think this quite as discernable before this enhanced image that I can recall. I believe I tended to think that was how it was but it seems clearer now. Or looking at it with my eyes crossed...
  9. zebraso

    Miami Beach, Champlain Towers South apartment building collapse, Part 18

    As I was reading the theory posited of unbalanced moments in the progression, I kept thinking "hinging". I mean we are thinking about unbalanced moments continuously. The slabs are coming down like a pendulum right? under what conditions other than certain controlled demo are they going to land...
  10. zebraso

    Miami Beach, Champlain Towers South apartment building collapse, Part 18

    I'm not sure where to start on that one. I skimmed it mostly. But I saw them talking about soil conditions and supporting a mid rise and nothing about piles. Am I missing something?
  11. zebraso

    Miami Beach, Champlain Towers South apartment building collapse, Part 18

    I was struggling with that as a read it. I think what he is saying the mesh adds to the positive bars that remain in terms of forming a cable. and not that the mesh constitutes positive reinforcement. I read it wrong and stated it wrong. That is clearly my mistake. My bad. I apologize.
  12. zebraso

    Miami Beach, Champlain Towers South apartment building collapse, Part 18

    Yeah. I see it says the mesh constitutes additional positive moment reinforcement after negative reinforcement generally fails, "giving way to a type of cable". It just seems like there is an emphasis on it. Maybe I read to much into it. It not helping anyway. Could it be a critical piece in the...
  13. zebraso

    Miami Beach, Champlain Towers South apartment building collapse, Part 18

    How much of the item one "A reinforced slab (topping) was added to the slab covering the parking lot with a welded wire mesh and paver.", was part of prior discussion here? I recall the discussion of the cores and identification of the topping layer. But I can't seem to recall the both direction...
  14. zebraso

    Miami Beach, Champlain Towers South apartment building collapse, Part 18

    You have a very cutting sense of irony that I can really appreciate.....And you are quite correct IMO.
  15. zebraso

    Miami Beach, Champlain Towers South apartment building collapse, Part 18

    Yep. A pre-sheared or "missing" strip bar is part of a very deficient process and no drop panels either. What am I missing? I see "people" as noticing (news stories) the future of electric vehicle weight just might pose problems for aging parking decks. Is there an awakening here?
  16. zebraso

    Miami Beach, Champlain Towers South apartment building collapse, Part 18

    I don't think it takes a grand conspiracy either. But there is a sort of pathology and rationalization for neglect that is its own puzzlement.
  17. zebraso

    Miami Beach, Champlain Towers South apartment building collapse, Part 18

    Yes. That's just it. Hidden, and hidden from whom? And how much willful blindness does it take? How does this mindset manifest itself? How many parties have to be involved and at what levels?
  18. zebraso

    Miami Beach, Champlain Towers South apartment building collapse, Part 18

    It is something how some time away from this makes some things stand out slightly differently. To think about progressive collapse in this repetitive punch through at the parking/pool deck area seems almost too much. These were primed to go IMO as a unit IMO. So if you take that factor out, and...
  19. zebraso

    Miami Beach, Champlain Towers South apartment building collapse, Part 18

    It explains the missing motion that triggered the camera. Otherwise it had me wondering whether this was a continuously recording ring. AFAIK Ring mentioned that was a feature that would be available some time ago (for a fee). I was not aware they never came out with it.
  20. zebraso

    Miami Beach, Champlain Towers South apartment building collapse, Part 18

    Not needed. I should have called it an artistic rendering instead of a drawing. It's an insult to drawings. Like an overly fancy ppt. No Charlie, I'm not talking about you!

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