Title: Fire Did Not Cause 3rd Tower’s Collapse on 9/11, New Study Finds Source:
Architects & Engineers for 9/11 Truth URL Source:https://www.ae911truth.org/wtc7?fbc ... L0IDQYyB2d7IvRLn0Qb0pH4Q3b91iA Published:Sep 4, 2019 Author:AE911Truth staff Post Date:2019-09-05 06:15:20 by Deckard Keywords:None Views:11281 Comments:69
On September 11, 2001, at 5:20 PM, the 47-story World Trade Center Building 7 collapsed into its footprint, falling more than 100 feet at the rate of gravity for 2.5 seconds of its seven-second destruction.
Despite calls for the evidence to be preserved, New York City officials had the building's debris removed and destroyed in the ensuing weeks and months, preventing a proper forensic investigation from ever taking place. Seven years later, federal investigators concluded that WTC 7 was the first steel-framed high-rise ever to have collapsed solely as a result of normal office fires.
Today, we at Architects & Engineers for 9/11 Truth are pleased to partner with the University of Alaska Fairbanks (UAF) in releasing the draft report of a four-year computer modeling study of WTC 7’s collapse conducted by researchers in the university's Department of Civil and Environmental Engineering. The UAF WTC 7 report concludes that the collapse of WTC 7 on 9/11 was caused not by fire but rather by the near-simultaneous failure of every column in the building.
"Fires on Floors 7 through 9 and 11 through 13 burned out of control, because the water supply to the automatic sprinkler system had failed. The primary and backup water supply to the sprinkler systems for the lower floors relied on the city's water supply. Those water lines were damaged by the collapse of WTC 1 and 2."
"After 7 hours of uncontrolled fires, a steel girder on Floor 13 lost its connection to one of the 81 columns supporting the building. Floor 13 collapsed, beginning a cascade of floor failures to Floor 5. Column 79, no longer supported by a girder, buckled, triggering a rapid succession of structural failures that moved from east to west. All 23 central columns, followed by the exterior columns, failed in what's known as a "progressive collapse"--that is, local damage that spreads from one structural element to another, eventually resulting in the collapse of the entire structure."
a steel girder on Floor 13 lost its connection to one of the 81 columns supporting the building
You would actually need a 'controlled fire' in order to cut steel. The fire would have to be highly concentrated, mixed carefully with oxygen under high pressure in order to even make a dent in steel. An acetylene torch (or nowadays, a plasma cutter) cuts steel.
Thermite will also cut or weld steel depending on what you want it to do.
An uncontrolled fire will not touch steel, which just begins to melt at 2500F.
The steel doesn't need to melt, just soften, and it does that around 1,000°F (500°C).
I have yearly chimney fires that get hotter than that (1000-2000F). The flimsy pipe just glows red without any warping (it is scary though!).
Think about that massive beam hidden deep in the structure. You'd have to heat that beam (probably coated in fire retardant?) way beyond cherry to cause any movement. The joint, which is either welded or riveted, would then have to fail. The joint is designed not to fail, especially with mere warping. Multiple inspectors signed off on the joint as it was created.
The problem with heating, cutting or melting steel is that as you heat the surface, the heat is wicked away by the rest of the steel. Those beams in sky scrapers are massive, probably minimum 3/4 inch plate (although I don't have the exact specs). The possibility of getting any uniform heat into that beam by normal building fire is, well, impossible.
That's why I listen when the engineers speak. They know the exact specs, load capacity, deflection under every temperature, wind velocity, etc. You name it, they know it.
That's an important factor. The building is an integral unit, all the pieces of the building supporting itself as one rigid structure. All that tonnage load would be distributed evenly, by architectural and engineering calculation.
Also, for one beam to move, first, there would have to be space for it to move to. And I'm not talking about some space created by a fire.
Think of how much effort it would take to extricate that beam and replace it. A huge void around the beam would need to be created. Other massive beams that are connected to the beam would need to be disconnected.
In other words, the beam and joint that we are told failed was not just sitting out in space, with a toasty fire heating it up to melting point. I say melting point because somewhere along the beam or joint there would need to be extensive cutting taking place.
Study: Fire Did Not Cause 3rd Tower’s Collapse on 9/11. misterwhite: Uh, yeah, it did. Watchman: An uncontrolled fire will not touch steel, which just begins to melt at 2500F. misterwhite: The steel doesn't need to melt, just soften, and it does that around 1,000°F (500°C). Watchman: The problem with heating, cutting or melting steel is that as you heat the surface, the heat is wicked away … misterwhite: The fire burned for 7 hours. Watchman: The flimsy pipe just glows red without any warping misterwhite: Was it supporting 100,000 tons? Watchman: That's an important factor. Watchman:Also, for one beam to move, first, there would have to be space for it to move to. misterwhite: It would soften and sag, causing the end to pull away from the support column.
At every step of the 'controlled fire' experiment they tell you that it does not replicate any situation in the WTC complex.
In fact they tell you important information that confirms what I basically knew: the WTC beams were massive, they were covered in fire retardant, the jet fuel was burned up in seconds.
The toothpick beam they show in the video is not connected at either end. It is given maximum room to move (warp). The fire was controlled and focused directly under the beam.
Not even close to being a true test of the WTC, but it looks convincing to the average American citizen looking for answers.
You should listen carefully to what the architects/engineers say (at great peril in losing their careers)
#20. To: watchman, misterwhite, GrandIsland (#13)(Edited)
At every step of the 'controlled fire' experiment they tell you that it does not replicate any situation in the WTC complex.
This is true.
In fact they tell you important information that confirms what I basically knew: the WTC beams were massive, they were covered in fire retardant, the jet fuel was burned up in seconds.
This is true.
The toothpick beam they show in the video is not connected at either end. It is given maximum room to move (warp). The fire was controlled and focused directly under the beam.
This is true.
Not even close to being a true test of the WTC, but it looks convincing to the average American citizen looking for answers.
That is true.
You should listen carefully to what the architects/engineers say (at great peril in losing their careers)
Since I am a very old man somewhat set in my ways, you will perhaps be ever so kind as to forgive me if I completely ignore the guidance you recommended with regard to any prudent future actions by me.
For, during the course of many long years I have found – as others have also found on numerous occasions - that experts are not always right.
As I said, I am an old man and I have poor eyesight.
Therefore, perhaps I cannot fully capture what is going on in videos I am presenting below. I can however, increase the font size on my computer to read that information which is being presented to me.
With this in mind, can you please explain to me exactly what I am missing when it is said that “fire” caused the collapse of a 17 story building in Terhran Italy.
Another video …
Thank you ever so kindly for this…
It seems that you keep saying what did not cause the collapse of the old 7 World Trade Center based on you “listening carefully” to the “expert” architect and engineer comments.
Well, this old man believes that if those architects and engineers were as damned smart as you wish me to believe they are, then after 18 long years those expert architects and engineers who are “at great peril in losing their careers” can finally both definitively and decisively – and with their great authority – say conclusively what caused 3rd Tower’s Collapse on 9/11.
Can they?
If they cannot, then if you don’t mind, I will continue holding to the belief that …
“… on September 11, 2001, the structure was damaged by debris when the nearby North Tower of the World Trade Center collapsed. The debris also ignited fires, which continued to burn throughout the afternoon on lower floors of the building. The building's internal fire suppression system lacked water pressure to fight the fires, and the building collapsed completely at 5:21:10 pm, according to FEMA, while the 2008 NIST study placed the final collapse time at 5:20:52 pm. The collapse began when a critical internal column buckled and triggered structural failure throughout, which was first visible from the exterior with the crumbling of a rooftop penthouse structure at 5:20:33 pm. The collapse made the old 7 World Trade Center the first tall building known to have collapsed primarily due to uncontrolled fires,[7] and at the time, the only steel skyscraper in the world to have collapsed due to fire” [At That Time].
With this in mind, can you please explain to me exactly what I am missing when it is said that “fire” caused the collapse of 17 story building in Terhran Italy – an uncontrolled fire that occurred with no jet fuel even involved.
You mean, without having a Con-Ed power station with diesel fuel in the large storage tanks? Or just questioning the quality of building materials used in major NYC construction projects from time to time? NYC is known for building projects of sub-standard construction overall, part of its longstanding reputation for corruption in the building and sanitation trades.
If you REALLY understood, you’d fucking leave too... and hide out on a few acres of wooded land, far from big bad gov, located in the corner of the flat earth.
I don't subscribe to that theory pig boy...but then you'd know that if you had an IQ above room temperature.
But by all means, keep up you quest for a cop- worshiping echo chamber, one where any opinions that deviate from the "official" government- approved 9/11 fairy tale are verboten.
You might want to run that past Stone - he's one of us.
Here's a link that completely debunks your fairy tale narrative:
On the morning of September 11, 2001, 19 men armed with boxcutters directed by a man on dialysis in a cave fortress halfway around the world using a satellite phone and a laptop directed the most sophisticated penetration of the most heavily-defended airspace in the world, overpowering the passengers and the military combat-trained pilots on 4 commercial aircraft before flying those planes wildly off course for over an hour without being molested by a single fighter interceptor.
These 19 hijackers, devout religious fundamentalists who liked to drink alcohol, snort cocaine, and live with pink-haired strippers, managed to knock down 3 buildings with 2 planes in New York, while in Washington a pilot who couldn’t handle a single engine Cessna was able to fly a 757 in an 8,000 foot descending 270 degree corskscrew turn to come exactly level with the ground, hitting the Pentagon in the budget analyst office where DoD staffers were working on the mystery of the 2.3 trillion dollars that Defense Secretary Donald Rumsfeld had announced “missing” from the Pentagon’s coffers in a press conference the day before, on September 10, 2001.
The DIA destroyed 2.5 TB of data on Able Danger, but that’s OK because it probably wasn’t important.
The SEC destroyed their records on the investigation into the insider trading before the attacks, but that’s OK because destroying the records of the largest investigation in SEC history is just part of routine record keeping.
NIST has classified the data that they used for their model of WTC7′s collapse, but that’s OK because knowing how they made their model of that collapse would “jeopardize public safety“.
The FBI has argued that all material related to their investigation of 9/11 should be kept secret from the public, but that’s OK because the FBI probably has nothing to hide.
This man never existed, nor is anything he had to say worthy of your attention, and if you say otherwise you are a paranoid conspiracy theorist and deserve to be shunned by all of humanity. Likewise him, him, him, and her. (and her and her and him).
Osama Bin Laden lived in a cave fortress in the hills of Afghanistan, but somehow got away. Then he was hiding out in Tora Bora but somehow got away. Then he lived in Abottabad for years, taunting the most comprehensive intelligence dragnet employing the most sophisticated technology in the history of the world for 10 years, releasing video after video with complete impunity (and getting younger and younger as he did so), before finally being found in a daring SEAL team raid which wasn’t recorded on video, in which he didn’t resist or use his wife as a human shield, and in which these crack special forces operatives panicked and killed this unarmed man, supposedly the best source of intelligence about those dastardly terrorists on the planet. Then they dumped his body in the ocean before telling anyone about it. Then a couple dozen of that team’s members died in a helicopter crash in Afghanistan.
