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Study Faults Bolts in WTC Collapse
By Associated Press
October 27, 2002
NEW YORK -- The single-bolt connections in the framework of
the World Trade Center popped and fell apart during the Sept. 11, 2001,
terrorist attacks, causing the floors to collapse on top of each other,
according to a new study.
The analysis, conducted by a team of researchers from the
Massachusetts Institute of Technology, concludes the bolts did not
properly secure the Twin Towers' steel floor trusses, The New York Post
The bolts were pulled toward the center of the buildings
while the floor trusses sagged, the report concluded.
Experts have been disputing how and why the twin towers
collapsed. A study by a Manhattan engineering firm said damage caused by
the planes, and fires that broke out as a result, caused both buildings to
crumble during the terrorist attacks.
A federal investigation said the towers' unconventional
design contributed to the collapse, noting weak floor supports gave way
during the attacks -- a similar conclusion to the one drawn by the MIT
researchers in their upcoming report.
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