National Geographic on 9/11

[eots]

Due to the effectiveness of the spray-applied fire-resistive material (SFRM) or fireproofing, the highest steel column temperatures in WTC 7 only reached an estimated 300 degrees C (570 degrees F), and only on the east side of the building did the steel floor beams exceed 600 degrees C (1,100 degrees F). However, fire-induced buckling of floor beams and damage to connections—that caused buckling of a critical column initiating collapse—occurred at temperatures below approximately 400 degrees C where thermal expansion dominates. Above 600 degrees C (1,100 degrees F), there is significant loss of steel strength and stiffness. In the WTC 7 collapse, the loss of steel strength or stiffness was not as important as the thermal expansion of steel structures caused by heat.
NIST WTC 7 Investigation Finds Building Fires Caused Collapse, 08/21/08

although the key elements of the core steel were demographically labeled. A careful reading of the NIST report shows that they have no evidence that the temperatures they predict as necessary for failure are corroborated by findings of the little steel debris
http://www.opednews.com/articles/genera_alan_mil_070820_former_chief_of_nist.htm


[ame=http://www.youtube.com/watch?v=3SLIzSCt_cg]YouTube - 9/11: NIST engineer John Gross denies WTC molten steel (extended)[/ame]

 

[Gamolon]

How the fuck did a section of the very bottom of the supports that supported ALL the weight and had ALL the fucking debris fall on them still stand and sections of the core with far less weight and debris on them collapse near the top? Because the very bottom didn't have fucking explosives blowing the columns out of the way.....

How did the bottom portion of the core eventually collapse WITHOUT explosives then?

You also said that the top floor crushed the 47 columns all the way to the ground right? The picture of the partial core contradicts your claim.

 

[Gamolon]

Due to the effectiveness of the spray-applied fire-resistive material (SFRM) or fireproofing, the highest steel column temperatures in WTC 7 only reached an estimated 300 degrees C (570 degrees F), and only on the east side of the building did the steel floor beams exceed 600 degrees C (1,100 degrees F). However, fire-induced buckling of floor beams and damage to connections—that caused buckling of a critical column initiating collapse—occurred at temperatures below approximately 400 degrees C where thermal expansion dominates. Above 600 degrees C (1,100 degrees F), there is significant loss of steel strength and stiffness. In the WTC 7 collapse, the loss of steel strength or stiffness was not as important as the thermal expansion of steel structures caused by heat.
NIST WTC 7 Investigation Finds Building Fires Caused Collapse, 08/21/08

I thought you said the temperatures they came up with cannot be reached in a normal office fire? Are you saying that office fires can never reach 300C, 400C, or 600C?

Maybe you need to read a bit.
Case Studies: Others: Desk Study High Rise Building

Security & Fire Protection Systems: fire ratings of home safes, hazard test, underwriters laboratories

although the key elements of the core steel were demographically labeled. A careful reading of the NIST report shows that they have no evidence that the temperatures they predict as necessary for failure are corroborated by findings of the little steel debris
OpEdNews - Article: Former Chief of NIST's Fire Science Division Calls for Independent Review of World Trade Center Investigation


YouTube - 9/11: NIST engineer John Gross denies WTC molten steel (extended)

How did they come up with those temperature ranges?

 

[Fizz]

"The NIST survey of 22 fire-induced building collapses from 1970-2002 identified a variety of conditions, materials, locations, and buildings. Fifteen cases were from the U.S., two from Canada, and five from Europe, Russia, and South America. The numbers of fire collapse events can be categorized by building material as follows:

Concrete: 7 (1 in Pentagon 9-11 event)
Structural steel: 6 (4 in 9-11 WTC events)
Brick/Masonry: 5
Wood: 2
Unknown: 2"

Fire Protection Engineering Archives - Historical Survey of Multistory Building Collapses Due to Fire

 

[DiveCon]

"The NIST survey of 22 fire-induced building collapses from 1970-2002 identified a variety of conditions, materials, locations, and buildings. Fifteen cases were from the U.S., two from Canada, and five from Europe, Russia, and South America. The numbers of fire collapse events can be categorized by building material as follows:

Concrete: 7 (1 in Pentagon 9-11 event)
Structural steel: 6 (4 in 9-11 WTC events)
Brick/Masonry: 5
Wood: 2
Unknown: 2"

Fire Protection Engineering Archives - Historical Survey of Multistory Building Collapses Due to Fire

oops, there goes the "no other building has collapsed from fire" lie

 

[eots]

"The NIST survey of 22 fire-induced building collapses from 1970-2002 identified a variety of conditions, materials, locations, and buildings. Fifteen cases were from the U.S., two from Canada, and five from Europe, Russia, and South America. The numbers of fire collapse events can be categorized by building material as follows:

Concrete: 7 (1 in Pentagon 9-11 event)
Structural steel: 6 (4 in 9-11 WTC events)
Brick/Masonry: 5
Wood: 2
Unknown: 2"

Fire Protection Engineering Archives - Historical Survey of Multistory Building Collapses Due to Fire

oops, there goes the "no other building has collapsed from fire" lie

NIST announced today following an extensive, three-year scientific and technical building and fire safety investigation. This was the first known instance of fire causing the total collapse of a tall building, the agency stated as it released for public comment its WTC

NIST WTC 7 Investigation Finds Building Fires Caused Collapse, 08/21/08

 

[DiveCon]

"The NIST survey of 22 fire-induced building collapses from 1970-2002 identified a variety of conditions, materials, locations, and buildings. Fifteen cases were from the U.S., two from Canada, and five from Europe, Russia, and South America. The numbers of fire collapse events can be categorized by building material as follows:

Concrete: 7 (1 in Pentagon 9-11 event)
Structural steel: 6 (4 in 9-11 WTC events)
Brick/Masonry: 5
Wood: 2
Unknown: 2"

Fire Protection Engineering Archives - Historical Survey of Multistory Building Collapses Due to Fire

oops, there goes the "no other building has collapsed from fire" lie

NIST announced today following an extensive, three-year scientific and technical building and fire safety investigation. This was the first known instance of fire causing the total collapse of a tall building, the agency stated as it released for public comment its WTC

NIST WTC 7 Investigation Finds Building Fires Caused Collapse, 08/21/08

doesnt make it any less of a LIE, dipshit

 

[eots]

"The NIST survey of 22 fire-induced building collapses from 1970-2002 identified a variety of conditions, materials, locations, and buildings. Fifteen cases were from the U.S., two from Canada, and five from Europe, Russia, and South America. The numbers of fire collapse events can be categorized by building material as follows:

Concrete: 7 (1 in Pentagon 9-11 event)
Structural steel: 6 (4 in 9-11 WTC events)
Brick/Masonry: 5
Wood: 2
Unknown: 2"

Fire Protection Engineering Archives - Historical Survey of Multistory Building Collapses Due to Fire

the only other two steel structure buildings outside of 9/11 experienced relatively small partial collpses...the structures remained standing despite total iinfernos compared to wtc 7...the Madrid building did not collapse a small portion still under construction did

 

[eots]

and why is the pentagon listed the collapse was not fire induced it was due to massive structural damage to the wall..and it was not steel and the building did not collapse did it..total bullshit ..but you knew that already

 

[Wicked Jester]

[ame=http://www.youtube.com/watch?v=ZnQlBrCPjWU]YouTube - Flight 77 Evidence crashing into Pentagon[/ame]
Looks like airline parts to be sure!

 

[DiveCon]

"The NIST survey of 22 fire-induced building collapses from 1970-2002 identified a variety of conditions, materials, locations, and buildings. Fifteen cases were from the U.S., two from Canada, and five from Europe, Russia, and South America. The numbers of fire collapse events can be categorized by building material as follows:

Concrete: 7 (1 in Pentagon 9-11 event)
Structural steel: 6 (4 in 9-11 WTC events)
Brick/Masonry: 5
Wood: 2
Unknown: 2"

Fire Protection Engineering Archives - Historical Survey of Multistory Building Collapses Due to Fire

the only other two steel structure buildings outside of 9/11 experienced relatively small partial collpses...the structures remained standing despite total iinfernos compared to wtc 7...the Madrid building did not collapse a small portion still under construction did

and those buildings didnt have a fucking 110 story building collapse on top of it


you troofers are such fucking moronic asswipes

 

[candycorn]

YouTube - Flight 77 Evidence crashing into Pentagon
Looks like airline parts to be sure!

Probably because it is....imagine that.

 

[Wicked Jester]

This should take care of the #7 bullshit:
Debunking 9/11 Conspiracy Theories and Controlled Demolition - World Trade Center 7, Building 7

 

[DiveCon]

This should take care of the #7 bullshit:
Debunking 9/11 Conspiracy Theories and Controlled Demolition - World Trade Center 7, Building 7

it SHOULD, but it wont

 

[Fizz]

and why is the pentagon listed the collapse was not fire induced it was due to massive structural damage to the wall..and it was not steel and the building did not collapse did it..total bullshit ..but you knew that already

it doesnt say its steel and isnt counted as steel you fucking moron.

its listed as concrete. the article isnt only on steel buildings.

 

[eots]

"The NIST survey of 22 fire-induced building collapses from 1970-2002 identified a variety of conditions, materials, locations, and buildings. Fifteen cases were from the U.S., two from Canada, and five from Europe, Russia, and South America. The numbers of fire collapse events can be categorized by building material as follows:

Concrete: 7 (1 in Pentagon 9-11 event)
Structural steel: 6 (4 in 9-11 WTC events)
Brick/Masonry: 5
Wood: 2
Unknown: 2"

Fire Protection Engineering Archives - Historical Survey of Multistory Building Collapses Due to Fire

the only other two steel structure buildings outside of 9/11 experienced relatively small partial collpses...the structures remained standing despite total infernos compared to wtc 7...the Madrid building did not collapse a small portion still under construction did

and those buildings didn't have a fucking 110 story building collapse on top of it


you troofers are such fucking moronic asswipes

why do you try to deceive like that...wtc 7 did not have a 110 story building fall on it you phrase it that way in a flailing attempt to connect the damage from falling debris to the collapse of wtc 7 when NIST sates that regardless of structural damage the building still would have collapsed from the fires alone...wtf is wrong with you ??


The collapse of WTC 7 is the first known instance of a tall building brought down primarily by uncontrolled fires. The fires in WTC 7 were similar to those that have occurred in several tall buildings where the automatic sprinklers did not function or were not present. These other buildings, including Philadelphia's One Meridian Plaza, a 38-story skyscraper that burned for 18 hours in 1991, did not collapse

Even without the structural damage, WTC 7 would have collapsed from the fires that the debris initiated. The growth and spread of the lower-floor fires due to the loss of water supply to the sprinklers from the city mains was enough to initiate the collapse of the entire building due to buckling of a critical column in the northeast region of the building.


wtc.nist.gov/media/NIST_NCSTAR_1A_for_public_comment.pdf

 

[Fizz]

why do you try to deceive like that...wtc 7 did not have a 110 story building fall on it you phrase it that way in a flailing attempt to connect the damage from falling debris to the collapse of wtc 7 when NIST sates that regardless of structural damage the building still would have collapsed from the fires alone...wtf is wrong with you ??


The collapse of WTC 7 is the first known instance of a tall building brought down primarily by uncontrolled fires. The fires in WTC 7 were similar to those that have occurred in several tall buildings where the automatic sprinklers did not function or were not present. These other buildings, including Philadelphia's One Meridian Plaza, a 38-story skyscraper that burned for 18 hours in 1991, did not collapse

Even without the structural damage, WTC 7 would have collapsed from the fires that the debris initiated. The growth and spread of the lower-floor fires due to the loss of water supply to the sprinklers from the city mains was enough to initiate the collapse of the entire building due to buckling of a critical column in the northeast region of the building.


wtc.nist.gov/media/NIST_NCSTAR_1A_for_public_comment.pdf

the fire in philadelphia was being fought the entire time it was burning. WTC7 had absolutely no firefighting going on for hours.

not a valid comparison.

 

[DiveCon]

the only other two steel structure buildings outside of 9/11 experienced relatively small partial collpses...the structures remained standing despite total infernos compared to wtc 7...the Madrid building did not collapse a small portion still under construction did

and those buildings didn't have a fucking 110 story building collapse on top of it


you troofers are such fucking moronic asswipes

why do you try to deceive like that...wtc 7 did not have a 110 story building fall on it you phrase it that way in a flailing attempt to connect the damage from falling debris to the collapse of wtc 7 when NIST sates that regardless of structural damage the building still would have collapsed from the fires alone...wtf is wrong with you ??


The collapse of WTC 7 is the first known instance of a tall building brought down primarily by uncontrolled fires. The fires in WTC 7 were similar to those that have occurred in several tall buildings where the automatic sprinklers did not function or were not present. These other buildings, including Philadelphia's One Meridian Plaza, a 38-story skyscraper that burned for 18 hours in 1991, did not collapse

Even without the structural damage, WTC 7 would have collapsed from the fires that the debris initiated. The growth and spread of the lower-floor fires due to the loss of water supply to the sprinklers from the city mains was enough to initiate the collapse of the entire building due to buckling of a critical column in the northeast region of the building.


wtc.nist.gov/media/NIST_NCSTAR_1A_for_public_comment.pdf

you are the deceptive one

 

[eots]

I know you are but what am I ..lol...what a loser you cant even address that fact your 110 story building line is pointless and according to NIST the collapse would of occurred from the fires alone..its the fact

 

[Fizz]

I know you are but what am I ..lol...what a loser you cant even address that fact your 110 story building line is pointless and according to NIST the collapse would of occurred from the fires alone..its the fact

if you have a more logical scenario backed up by physical evidence then please share it with us all.