Windsor Tower in Madrid, Spain burned for 20+ hours and never collapsed. No steel frame structure has ever collapsed due to fire, before or after 9/11. On 9/11, 3 collapsed, due to "structural failure from fires".

submitted by HibikiBlackCaudillo from i.redd.it

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[–]package 10 insightful - 3 fun10 insightful - 2 fun11 insightful - 3 fun -  (3 children)

... the windsor tower was ~4x shorter than the world trade center towers and hadn't suffered an impact from a 747 and hadn't been doused in burning jet fuel at that impact site and wasn't within 200 feet of an equally sized building that had just collapsed

[–]AlanSmith33 8 insightful - 4 fun8 insightful - 3 fun9 insightful - 4 fun -  (2 children)

WTC was designed to withstand an aircraft impact, jetfuel doesn't melt steel beams and the first tower to fall wasn't within 200 feet of any collapsed building. Also, WTC7.

[–]ActuallyNot 4 insightful - 2 fun4 insightful - 1 fun5 insightful - 2 fun -  (1 child)

The fire was hot enough for the combined effect of the weakening of the steel from the heat and the bending from thermal expansion of the steel. (Steel loses about half its strength when it's 600 or 700 °C, and since the fire was hottest on the side of the building that the plane it, there were strong bending moments due to unequal thermal expansion).

This led to a buckling failure of the steel, and so to collapse of the buildings.

[–]JasonCarswellPlatinum Foil Fedora 4 insightful - 3 fun4 insightful - 2 fun5 insightful - 3 fun -  (0 children)

Propaganda bullshit.