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By virtue of the ridiculous nature of the myriad government sponsored studies, the 9/11 commission and various magazine and newspaper articles on the subject, the hasty clean up of the crime scenes, the destruction of physical evidence, and the absurd level of secrecy surrounding remaining evidence; one can only conclude that the Government is hiding something.
NIST NCSTAR 1, p. 176
(a) structural damage due to impact, and (b) the damage to insulation caused by the impact. NIST say: “In the absence of structural and insulation damage, a conventional fire substantially similar to or less intense than the fires encountered on September 11, 2001, likely would not have led to the collapse of a WTC tower.”
Originally posted by ULTIMA1 These buildings had as bad or worse structural damage then building 7 and the fires burned longer then the 3 WTC buildings combined.
Originally posted by CameronFox
In spite of a total burnout of four and a half floors, there was no damage to the main structural members and only minor damage to one secondary beam and a small number of floor pans. Did you read this? minor damage to one secondary beam and NO damage to the main structural members
Where does it say that they had worse structural damage?
After WTC 2 collapsed:
Some south face glass broken at lower floors
Dust covered lobby areas at floors 1 and 3
Power on in building, phones working
No fires observed
After WTC 1 collapsed:
Heavy debris on Vesey Street and WTC 7 Promenade
No heavy debris observed in lobby area, white dust coating
SW Corner Damage – floors 8 to 18
South face damage between two exterior columns - roof level
down 5 to 10 floors, extent not known
South Face Damage –
• middle 1/4 -1/3 width south face, 10th floor to ground
• large debris hole near center around 14th floor
• 1/4 width south face, above 5th floor, atrium glass intact
• 8th / 9th floor from inside, visible south wall gone with more
damage to west, 2 elevator cars dislodged into elevator lobby
Observed Fire Locations (11:30-2:30 pm)
No diesel smells reported from the exterior, stairwells, or lobby
No signs of fire or smoke below floor 6 from stairwell and lobby areas
Fire reported at west wall of floor 7 around 12:15 pm
In east stairwell, smoke was observed near floors 19-20; signs of a fire
observed on floor 23
Looking from southwest corner to the south face
Fire in SW corner near floors 10 or 11
Fire on floors 6, 7, 8, 21, 30
Multiple fires observed on floors numbered 20’s and 30’s
Heavy black smoke coming out of south face gash; no fire observed
Looking from southeast corner to the south face
Fire on floor 12;1 area above covered with smoke
Fire on floors 11-121 moved to east face and progressed to the north
1 fires reported on floor 14, but photographs showed east face fires on floor 12
A vertical failure would pile debris on the east side of the building,
damaging or severing transfer girders and trusses between floors 5
This secondary damage has been postulated to cause a horizontal
progression of failure in the core columns at or near floors 5 and 7.
The global collapse occurred with few external signs and is postulated
to have occurred with the failure of core columns