Wtc 7

[Superlative]

Would someone mind explaining to me why WTC 7 collapsed.

[ame]http://www.youtube.com/watch?v=5qWFVzBdM5s[/ame]

[ame]http://www.youtube.com/watch?v=Afb7eUHr64U[/ame]

Why didnt the Bankers Trust building fall down?

All Ive been able to find are conspiracy theories.

Yeah the landlord gave the order to "Pull" the building down, yada yada yada. That could have been about pulling out the firefighters.

[ame]http://www.youtube.com/watch?v=RiNK-cWt7DY[/ame]

http://wtc7.net/articles/FEMA/WTC_ch5.htm

http://wtc7.net/index.html

http://www.debunking911.com/pull.htm

 

[Annie]

Best source I've seen on it:

http://www.popularmechanics.com/technology/military_law/1227842.html?page=5

WTC 7 Collapse
CLAIM: Seven hours after the two towers fell, the 47-story WTC 7 collapsed. According to 911review.org: "The video clearly shows that it was not a collapse subsequent to a fire, but rather a controlled demolition: amongst the Internet investigators, the jury is in on this one."

FACT: Many conspiracy theorists point to FEMA's preliminary report, which said there was relatively light damage to WTC 7 prior to its collapse. With the benefit of more time and resources, NIST researchers now support the working hypothesis that WTC 7 was far more compromised by falling debris than the FEMA report indicated. "The most important thing we found was that there was, in fact, physical damage to the south face of building 7," NIST's Sunder tells PM. "On about a third of the face to the center and to the bottom--approximately 10 stories--about 25 percent of the depth of the building was scooped out." NIST also discovered previously undocumented damage to WTC 7's upper stories and its southwest corner.

NIST investigators believe a combination of intense fire and severe structural damage contributed to the collapse, though assigning the exact proportion requires more research. But NIST's analysis suggests the fall of WTC 7 was an example of "progressive collapse," a process in which the failure of parts of a structure ultimately creates strains that cause the entire building to come down. Videos of the fall of WTC 7 show cracks, or "kinks," in the building's facade just before the two penthouses disappeared into the structure, one after the other. The entire building fell in on itself, with the slumping east side of the structure pulling down the west side in a diagonal collapse.

According to NIST, there was one primary reason for the building's failure: In an unusual design, the columns near the visible kinks were carrying exceptionally large loads, roughly 2000 sq. ft. of floor area for each floor. "What our preliminary analysis has shown is that if you take out just one column on one of the lower floors," Sunder notes, "it could cause a vertical progression of collapse so that the entire section comes down."

There are two other possible contributing factors still under investigation: First, trusses on the fifth and seventh floors were designed to transfer loads from one set of columns to another. With columns on the south face apparently damaged, high stresses would likely have been communicated to columns on the building's other faces, thereby exceeding their load-bearing capacities.

Second, a fifth-floor fire burned for up to 7 hours. "There was no firefighting in WTC 7," Sunder says. Investigators believe the fire was fed by tanks of diesel fuel that many tenants used to run emergency generators. Most tanks throughout the building were fairly small, but a generator on the fifth floor was connected to a large tank in the basement via a pressurized line. Says Sunder: "Our current working hypothesis is that this pressurized line was supplying fuel [to the fire] for a long period of time."

WTC 7 might have withstood the physical damage it received, or the fire that burned for hours, but those combined factors--along with the building's unusual construction--were enough to set off the chain-reaction collapse.

 

[Superlative]

WTC 7 might have withstood the physical damage it received, or the fire that burned for hours, but those combined factors--along with the building's unusual construction--were enough to set off the chain-reaction collapse.

How hot does diesel fuel burn?

Is it hot enough to weaken the steel frames ?

Wouldnt the building fall to the side that was weakened and not into itself?

 

[Annie]

How hot does diesel fuel burn?

Is it hot enough to weaken the steel frames ?

Wouldnt the building fall to the side that was weakened and not into itself?

Now those are answers you should find out. I know the article is long, but some of those issues are addressed.

 

[RetiredGySgt]

No No, the building had to be destroyed because the headquarters for the nefarious US Government plot to use a nintendo control pad to fly commercial airlines into the WTC was there. Well that and the secret site where all the explosives laid secretly through out the 2 main buildings had been stored. It simply had to go.

 

[Ninja]

How hot does diesel fuel burn?

Is it hot enough to weaken the steel frames ?

A marshmallow burns hot enough to weaken steel frames. Hot enough to melt them, actually.

 

[Annie]

A marshmallow burns hot enough to weaken steel frames. Hot enough to melt them, actually.

I thought of adding the fact that it wasn't only diesel fuel burning, but I figured if the poster was smart, he'd figure that out for himself after reading.

 

[Ninja]

He's not very smart. Maybe one of his friends will look it up for him - he'd never find it.

 

[Annie]

He's not very smart. Maybe one of his friends will look it up for him - he'd never find it.

Actually, I do believe he went to the site of popular mechanics. I don't underestimate that those I disagree with are seeking answers, as I am. Not just on the 'conspiracy' stuff, but the WOT in general.

My bottom line, we're all Americans and should be acting as such. We have differing places from which we begin, but that if the jumping off place.

I'm getting very tired of 'Bush lies. Bush is Hitler. Bush is fascist. Likewise I'm tired of Libs believe this. Libs want this. Libs will not be satisified until...

 

[onedomino]

Would someone mind explaining to me why WTC 7 collapsed.

A team of Sasquatch assassins, funded by the CIA, equipped with alien technology recovered from the Roswell crash, secretly imploded WT7 so Bush could justify the invasion of Iraq and give all the oil to his friends.

 

[Annie]

A team of Sasquatch assassins, funded by the CIA, equipped with alien technology recovered from the Roswell crash, secretly imploded WT7 so Bush could justify the invasion of Iraq and give all the oil to his friends.

Can't go with this. No conspiracy.

 

[Semper Fi]

A team of Sasquatch assassins, funded by the CIA, equipped with alien technology recovered from the Roswell crash, secretly imploded WT7 so Bush could justify the invasion of Iraq and give all the oil to his friends.

Uhh. No. You completely forgot the part about the Haliburton contract and the secret deals with Osama bin Laden and Darth Vader....