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Originally posted by Zaphod58
So a plane impacting with 1 kiloton of force is just going to hit the building and STOP? You're talking MASSIVE forces involved. There's no way that those buildings were going to withstand the initial impact of those planes.
Originally posted by ULTIMA1
So the NIST and FEMA reports were wrong or lieing when they stated the buildings withstood the planes impacts ?
Do you have evidence that the NIST and FEMA reports are wrong ?
Originally posted by Zaphod58
Or do you have evidence that the steel facade that we were talking about withstood them? Or are you just twisting things we were talking about to make it look like I'm saying something I'm not?
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. Heat from the fire was comparable to the energy produced by a large commercial power-generating plant, the report said.
The robustness of the perimeter frame-tube system and the large dimensional size of the WTC towers helped the buildings withstand the aircraft impact.
The composite floor system with open-web bar joist elements, framed to provide two-way flat plate action, enabled the floors to redistribute loads without collapse from places of aircraft impact damage to other locations, avoiding larger scale collapse upon impact.
The hat truss resisted the significant weakening of the core, due to aircraft impact damage and subsequent thermal effects, by redistributing loads from the damaged core columns to adjacent intact columns and, ultimately, by redistributing loads to the perimeter walls from the thermally weakened core columns that lost their ability to support the buildings’ weight.
As a result of the above factors, the buildings would likely not have collapsed under the combined effects of aircraft impact and the subsequent jet-fuel ignited multi-floor fires, if the fireproofing had not been dislodged or had been only minimally dislodged by aircraft impact. The existing condition of the fireproofing prior to aircraft impact and the fireproofing thickness on the WTC floor system did not play a significant role in initiating collapse on Sept. 11, 2001.
The early news reports noted how well the towers withstood the initial impact of the aircraft; however, when one recognizes that the buildings had more than 1,000 times the mass of the aircraft and had been designed to resist steady wind loads of 30 times the weight of the aircraft, this ability to withstand the initial impact is hardly surprising. Furthermore, since there was no significant wind on September 11, the outer perimeter columns were only stressed before the impact to around 1/3 of their 200 MPa design allowable.
Originally posted by Zaphod58
And is it so hard for you to understand that we were talking about the FACADE of the building and not the entire building? What part of that is so hard to understand?
WTC 1 probably experienced some additional loading and damage due to the collapse of the adjacent WTC 2. The extent of such damage is not known but likely included broken window and facade elements along the south face. This additional damage was not sufficient to cause collapse. The first event of sufficient severity to cause collapse was the fires that followed the aircraft impact.
Originally posted by Fowl Play
To say there were no planes is pure disinformation.
Originally posted by Fowl Play
To say there were no planes is pure disinformation. Suckers that believe this and a lot of other disinfo about 911 are a big reason the truth movement will never succeed. A war machine against a bunch of headless chickens.. Yes there are questions unanswered, but the conspiracies are getting more " out there" as they struggle to get any nearer to reality.
Originally posted by showmeproof
a similar test conducted to test strength of a reinforced wall.
Similar speeds as WTC 'crashes', 500 MPH. I apologize that I do not have the original source, but a link to another site instead. I will look further for the original.
[edit on 6-6-2007 by showmeproof]
Originally posted by ULTIMA1
Originally posted by Fowl Play
To say there were no planes is pure disinformation. Suckers that believe this and a lot of other disinfo about 911 are a big reason the truth movement will never succeed. A war machine against a bunch of headless chickens.. Yes there are questions unanswered, but the conspiracies are getting more " out there" as they struggle to get any nearer to reality.
Its just too bad we have no videos or photos of Flight 77 hitting the Pentagon. No official reports matching the parts found to flight 77. No reports on where the parts found were taken.
Originally posted by Fowl Play
[
Sleeper, i will use what terms i like in what situations i see fit, i do nothing against T&C.
I will reiterrate.. To say no planes hit the twin towers is total disinformation.
Originally posted by selfless
Originally posted by Fowl Play
[
Sleeper, i will use what terms i like in what situations i see fit, i do nothing against T&C.
I will reiterrate.. To say no planes hit the twin towers is total disinformation.
I'm assuming you are referring to me?
I'm not sleeper....
Sure you may use any terms you want and that also means that I can call your statements to be unfounded.
Which it is.