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

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SFCharlie

SFCharlie

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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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Please note the presence and absence of concrete (railings?) on the top few floors.
Attempt_to_duplicate_approximately_the_view_from_the_CCTV_twitter_vid_of_the_collapse_2_yn0mos.jpg
 
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Red Corona said:
@Js5180 if the two flashes are indeed the result of the conduits being cut in the corridor ceilings of 9 and 11

If electrics are in odd floors and that's what we think the blue light in x10 stack is then making those on floors 9 and 11 goes with the 'missing 13th floor' interpretation (see my floor correlation pic higher up the thread).
Click to expand...



Were these flashes before or after the conduits got bent downwards by around 10 ft.? Were the flashes at the end of the conduits or at the meter bases? Where exactly did each phase wire fail?
As I've said before, you will never be able to prove anything to me by trying to interpret the flashes on that fuzzy video.

 
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SFCharlie said:
Please note the presence and absence of concrete (railings?) on the top few floors.
Click to expand...
702, 903, 1203, 905, 1007, 1108, 212, 312, 612, 812, 1012 all had balcony railings removed and replaced in 2009.
Though I'd recon lost pixles.


To those in the previous thread with questions over the fire control panel, it was not original. Was due to be replaced but they had this.

Precision guess work based on information provided by those of questionable knowledge
 
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I have been at work on a prototype of a new PowerPoint presentation. I removed all the "duplicate frames" (frames with no light, leaf, or collapse movement). Around frame 20, I noticed I could see the top floors. I marked them in red and then backed up to the previous frame and aligned the red with the portions that remained visible. I was able to do this almost to the start of the frames.
Frame_005_phkhnx.png

(if you have PowerPoint, I have the timings setup for a "show")

SF Charlie
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Powdercoated Aluminum.
Edit: May have been painted. Aluminum either way.

They were all due to get pulled out this year, posts trimmed and baseplates welded on for them to install with tapcons rather than being in 3" diameter cored holes 3-5" deep.
 
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No concrete railings. 2nd floor to PH contained the aame design railings. Roof and PH roof contained the parapet wall.
Edit: One unit at the top had an extension of the roof that was blocked off. I guess this would be a "railing". Another as built being different than as drawn.
 
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SFCharlie (Computer) said:
I marked them in red
Click to expand...

Are you saying your top red line is not actually in line with what may be seen as the far (north) PH corridor parapet? And what is immediately below is not the roof surface hinged down?
 
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rodface said:
For those looking for grassy knolls in blurry videos...

This is how the building would have looked from the camera's precise perspective, when intact.
Click to expand...


That appears wrong. You're missing a section of 12 floor roof parapet.
 
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Demented said:
To those in the previous thread with questions over the fire control panel, it was not original. Was due to be replaced but they had this.
Click to expand...

Nicolas Vazquez and his wife Gimena Accardi were in the elevator when the deck collapsed, having just parked in the garage. In his WhatsApp audio, Vazquez says that the elevator from the garage stopped at the lobby as usual. In other words, he is saying that the normal experience coming from the garage included the elevator stopping at the lobby.

What would be the purpose of programming the Honeywell to do that?
 
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Nukeman948 said:
I don't know if the fire alarm system is the original one from 1980, but for the original one, a manual pull station, smoke detector, or sprinkler flow switch will transmit a tone alarm for that floor only. After a time delay of 0-10 minutes, if not reset, a general alarm will alert all floors.
Click to expand...
That stuff is designed to last for decades. We still have stuff from the 1980's where I work.

If your nickname here implies what you do for a living, you know what I'm talking about!
 
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There were seven minutes between the 1:15 deck collapse and the 1:22 building collapse. If they had the system set to ten minutes, that would explain why the people in the part of the building that stood could hear the alarm after the building collapse.

 
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Looking at the security guard's (admittedly 2nd hand) story on the go fund me page for her, there's some things I question.

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?

At any event, it appears the family from 111 (and likely the couple that had come up in the elevator, perhaps others?) escaped before the doors were inoperable.

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?
 
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nessman said:
If your nickname here implies what you do for a living, you know what I'm talking about!
Click to expand...

You wouldn't believe the amount of pneumatic controls still in use where I've been. It's like a trip to the '60s.
 
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Debirlfan said:
At any event, it appears the family from 111 (and likely the couple that had come up in the elevator, perhaps others?) escaped before the doors were inoperable.
Click to expand...

Yes, apparently others escaped through the lobby doors along with the Nirs and Vazquezes. We don’t have any of their identities but, if you look at the NYT’s fatalities/unit graphic, it seems evident that the others who escaped were from the side that didn’t fall, as were Vazquez and Accardi (306.)
 
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Nukeman948 said:
You wouldn't believe the amount of pneumatic controls still in use where I've been. It's like a trip to the '60s.
Click to expand...
Still in use where I am today! But... given the plant is nearly 50 years old (and talk about steel reinforced concrete...), it still runs very well today.
 
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