13 December 2010

Water is heavy

Watch the roof of the Metrodome (Minneapolis, MN) collapse:

2 comments:

  1. Yeah--awesome video, wonder who saw the problem emerging and thought to set up a camera to capture the collapse. Strange thing is, it's a DOME! Engineered to transfer forces laterally, withstand vertical pressure, all that stuff. The structural engineer needs a defense lawyer, and soon...

    ReplyDelete
  2. The Metrodome is an air supported structure. The inside air pressure is a smalll amount above the outside pressure. Because of this the roof does not behave like a traditional dome, transfering vertical pressures laterallly.

    That said, the snow event was well within building code limits. The dome also has a history of collapses, mostly in its early years.

    The roof fabric is nearing its projected life, and replacement of the roof was apparently normal scheduled maintenance costs.

    ReplyDelete

Spammers, don't bother. I delete spam.