New footage of #7 collapse

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Comments

  • NumberTenOx
    NumberTenOx Posts: 94
    RolandTD20Kdrummer wrote:
    That thing fell out of the sky like a piece of lego.

    Exactly. That's exactly what you would expect.

    Once one part of a floor begins to fail, the forces on the other parts of that floor are incredible. Once the top section of the building starts to move downward, the fact that the building is interconnected will drag the whole top down in one piece, in basically a freefall.

    You'll also notice the building doesn't really fall straight down, but starts to fall away from the camera a bit. That's (probably) the torque generated by the fact that the front section of the building was more damaged than the back, and the front of the lower floors started failing before the rear.
  • Nevermind
    Nevermind Posts: 1,006
    http://www.youtube.com/watch?v=FI5DcHJZMuc
  • RolandTD20Kdrummer
    RolandTD20Kdrummer Posts: 13,066
    NumberTenOx wrote:
    Exactly. That's exactly what you would expect.

    Once one part of a floor begins to fail, the forces on the other parts of that floor are incredible. Once the top section of the building starts to move downward, the fact that the building is interconnected will drag the whole top down in one piece, in basically a freefall.

    You'll also notice the building doesn't really fall straight down, but starts to fall away from the camera a bit. That's (probably) the torque generated by the fact that the front section of the building was more damaged than the back, and the front of the lower floors started failing before the rear.

    I don't believe the damage it received would affect the entire building, and all at once like that. It was too small and localized to affect the entire structure simultaneously all the way to the ground everywhere. There should be at least 2/3rds of it still standing or toppled over resting against another building.
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