The collapse of the world trade center occurred on tuesday, september 11, 2001, after two commercial airliners hijacked by al-qaeda were deliberately flown into the twin towers of the world trade center complex in new york city as part of the september 11 attacks.
Why the Towers Collapsed?
On the fateful day of September 11, 2001, two of America’s most iconic structures, the World Trade Center towers in New York City, collapsed in a catastrophic event that forever changed the nation and the world. The event changed the course of history and will never be forgotten. Eighteen years later, people are still trying to understand what happened that day. They want to understand why two enormous buildings, built with modern engineering, could come crashing down within hours of the attack.
A combination of events caused the collapse of both towers, but the main factor was the intense heat generated by the aircraft collisions and burning jet fuel. The heat created an inescapable inferno that weakened the structure’s steel columns until they quickly deteriorated. Structural engineers have described the weakening of the steel columns as being similar to “boiling in hot water”, while other experts have compared it to melting a thick steak in a hot pan.
The intense heat also disrupted the buildings’ connection points and caused portions of the internal structure to separate and sag. As the internal structure deteriorated, the outside walls of the towers began to bow outwards due to the immense pressure from the buckling and weakening columns.