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The Wet Noodle, or Column Failure, Theory

Heat from fires causes columns to lose most of their strength precipitating a progressive collapse.

  • Endorsed in a paper Why Did the World Trade Center Collapse?-Simple Analysis by Bazant and Zhou. Uses elastic dynamic analysis to conclude:
    "The structural resistance is found to be an order of magnitude less than necessary for survival."
  • Endorsed by Silverstein insurance claim investigation conducted by Weidlinger Associates Inc.
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