Christopher7
Philosopher
- Joined
- Aug 18, 2006
- Messages
- 6,538
Chris,
I would like to be sure that I understand your position. Are the following correct?
1) The north, west and east walls were falling together.
2) You understand that the moment frames held these three walls together making them a single unit.
3) The 21 columns holding up the screenwall and west penthouse were falling with them.
I would like to be sure that I understand your position. Are the following correct?
1) The north, west and east walls were falling together.
2) You understand that the moment frames held these three walls together making them a single unit.
3) The 21 columns holding up the screenwall and west penthouse were falling with them.
The damage was not that severe - floors 5 thru 17 and floor 44 to the roof. Floors 18 thru 43 were not damaged.1) Is it true that moment frames actually hold an entire building together, even if one side is badly damaged?
The fires on floors 19, 21, 29 and 30 had burned our by 1 p.m. The only other fire reported on the south side was floor 12 around noon to 1 p.m. There was no damage to any columns due to fire.2) Let's say the south perimeter wall was so badly damaged from seven hours of fire that parts of it started to collapse along with the east penthouse (this is an unproven hypothesis). Is Chris7 right in saying that the other three sides would hold up a mostly-destroyed perimeter wall? Do they HAVE to come down together even if there is a huge difference in the damage done?
It did not tip over badly. The debris was contained mostly within the footprint.3) Does the fact that after the 2.25 seconds of freefall the whole building tipped over into the badly damaged south face have anything to do with the moment frames? How would moment frames hold everything together 100% and then completely fall apart and be useless during stage three of the collapse?
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