'Experts' Originated Steel-Melting-Fires Claim
Richard Ebeltoft, a structural engineer and University of Arizona
architecture lecturer, speculated that flames fueled by thousands
of gallons of aviation fuel melted the building's steel supports.
Hyman Brown, a University of Colorado civil engineering professor
and the Trade Center's construction manager, speculated that flames
fuelled by thousands of litres of aviation fuel melted steel supports.
"This building would have stood had a plane or a force caused by a
plane smashed into it," he said. "But steel melts, and 90,850 litres
of aviation fluid melted the steel. Nothing is designed
or will be designed to withstand that fire."
Each tower was struck by a passenger aeroplane,
hijacked by suicidal terrorists, but remained upright for nearly an hour.
Eventually raging fires melted the supporting steel struts,
but the time delay allowed hundreds of people to escape.
[Professor of Structural Engineering at the University of Newcastle,
John Knapton] told BBC News Online:
"The 35 tonnes of aviation fuel will have melted the steel...
all that can be done is to place fire resistant material around the steel
and delay the collapse by keeping the steel cool for longer."
Kevin Ryan points out several more examples:
- Scientific American (Eduardo Kausel)
- NOVA video (Matthys Levy)
- Henry Koffman from USC
- Tom Mackin from Univ. of Illinois