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Originally posted by Disclosed
But the quote said "most New York skyscrapers built with traditional designs". So you only can show plans for 1 building?? Thats most skyscrapers? That is now considered the traditional design?
Originally posted by Disclosed
Were the buildings constructed in the same manner as the WTC buildings?
Did those buildings have jetlines crash into them at over 400mph?
[edit on 29-3-2008 by Disclosed]
Originally posted by Swampfox46_1999
Oh wait, once again, we are only considering the fire
Originally posted by jfj123
That statement is completely illogical. As example, if someone is run over by a car and they cannot identify the car, we don't know if they were really hit by the car??? Come on
Originally posted by ULTIMA1
Yes, the buildings were all made of steel just like the WTC buildings.
The buidlings i have posted had longer lasting fires and more structural damage then the WTC buildings and did not collapse.
If you are going to claim certain planes hit the buidlings you should be able to come up with the evidence that these planes hit the buildings, otherwise its only an opinion and not fact.
Originally posted by Disclosed
So the "planes" filmed and seen by non-media people that day...weren't really planes at all?
This isnt turning into a "no planes" thread now, is it?
Originally posted by Disclosed
Incorrect. The reports state the following: The plane impacts, and resulting fires, started a chain of events that led to the eventual collapse. I can show you those quotes again in the released reports, if you like.
More structural damage? Were they hit by aircraft as well? What caused the structural damage?
So the "planes" filmed and seen by non-media people that day...weren't really planes at all?
If you are going to claim certain planes hit the buidlings you should be able to come up with the evidence that these planes hit the buildings, otherwise its only an opinion and not fact.
Originally posted by ULTIMA1
Most reports state that the main casue of the collapse was the fire.
Originally posted by DisclosedThose reports would not be the FEMA, NIST or 911 commission reports.
The report confirmed the emerging consensus that the twin towers could have withstood the impact of the hijacked airliners but eventually succumbed to the inferno that weakened the buildings' steel framework.
While the aircraft impact undoubtedly destroyed several columns in the WTC perimeter wall, the number of columns lost on the initial impact was not large and the loads were shifted to remaining columns in this highly redundant structure. Of equal or even greater significance during this initial impact was the explosion when 90,000 L gallons of jet fuel, comprising nearly 1/3 of the aircraft’s weight, ignited. The ensuing fire was clearly the principal cause of the collapse.
Originally posted by ULTIMA1
Well see here is where i have to prove you wrong yet again.
The FEMA report does state that the towers withstood the planes impacts and it was the fire that casued the collapse.
www.firehouse.com...
The report confirmed the emerging consensus that the twin towers could have withstood the impact of the hijacked airliners but eventually succumbed to the inferno that weakened the buildings' steel framework.
Originally posted by DisclosedThanks for agreeing with my post.
The specific factors in the collapse sequences relevant to both towers (the sequences vary in detail for WTC 1 and WTC 2) are:
Each aircraft severed perimeter columns, damaged interior core columns and knocked off fireproofing from steel as the planes penetrated the buildings. The weight carried by the severed columns was distributed to other columns.
Subsequently, fires began that were initiated by the aircraft’s jet fuel but were fed for the most part by the building contents and the air supply resulting from breached walls and fire-induced window breakage.
These fires, in combination with the dislodged fireproofing, were responsible for a chain of events in which the building core weakened and began losing its ability to carry loads.
The floors weakened and sagged from the fires, pulling inward on the perimeter columns.
Floor sagging and exposure to high temperatures caused the perimeter columns to bow inward and buckle—a process that spread across the faces of the buildings.
Collapse then ensued.
Originally posted by Disclosed
Not according to FEMA:
After the World Trade Center towers survived the initial aircraft impacts, the engineering community was stunned that the towers and other nearby steel frame buildings collapsed due to the effects of fire – that had never happened before to such buildings.
Originally posted by ULTIMA1
but eventually succumbed to the inferno that weakened the buildings' steel framework.
These fires, in combination with the dislodged fireproofing, were responsible for a chain of events in which the building core weakened and began losing its ability to carry loads.
Originally posted by Disclosed
The facts and evidence I post speak for themselves.
After the World Trade Center towers survived the initial aircraft impacts, the engineering community was stunned that the towers and other nearby steel frame buildings collapsed due to the effects of fire – that had never happened before to such buildings.
THEY TOLD US: Buildings "collapse" when subjected to great stresses.
IN FACT: Excepting WTC towers 1, 2, and 7 there has never been a case of a steel-frame highrise totally collapsing because of fires or any other cause or combination of causes other than controlled demolition.
The WTC towers likely would not have collapsed under the combined effects of aircraft impact damage and the extensive, multifloor fires if the thermal insulation had not been widely dislodged or had been only minimally dislodged by aircraft impact.
Originally posted by Disclosed
The NIST definately knows what its talking about
Combined effects....impact and resulting fires.
Fact.
the engineering community was stunned that the towers and other nearby steel frame buildings collapsed due to the effects of fire – that had never happened before to such buildings.
After watching videos experts say that it was not the damages inflicted but the big fire followed in destroying the two towers.
Professor Wu Huanjia from Qinghua University says in an interview that the big fire must be to blame for softening and melting away the steel, paralyzing and destruction of the towers as mere plane crash is not strong enough to topple the two large tower structures.