In article <zfWdnTL6XuBltobVnZ2dnUVZ_j2dnZ2d@[EMAIL PROTECTED]
>,
VTR <vexjorge@[EMAIL PROTECTED]
> wrote:
>Dr. Steven Jones presents new evidence in the ongoing investigation of
the collapse of the WTC
>Towers at the Boston 9/11 Conference.
>
>http://video.google.com/videoplay?docid=1957490867030316250&hl=en
BYU Structural Engineering professor, D. Allan Firmage, Professor
Emeritus, Civil Engineering, says Jones is a fraud.
Quote:
After reading in the Daily Herald the presentations made by
Professor Steven E. Jones (BYU Physics) to students at UVSC and
BYU, I feel obligated to reply to his "Conspiracy Theory" relating
to the terrorist attacks on the World Trade Center (9/11/01).
I have studied the summary of the re****t by FEMA, The American
Society of Civil Engineers and several other professional
engineering organizations. These experts have given in detail the
effects on the Towers by the impact of the commercial aircraft. I
have also read Professor Jones' (referred to) 42 page unpublished
re****t. In my understanding of structural design and the properties
of structural steel I find Professor Jones' thesis that planted
explosives (rather than fire from the planes) caused the collapse
of the Towers, very unreliable.
The structural design of the towers was unique in that the
sup****ting steel structure consisted of closely spaced columns in
the walls of all four sides. The resulting structure was similar to
a tube. When the aircraft impacted the towers at speeds of about
500 plus mph, many steel columns were immediately severed and
others rendered weak by the following fires. The fires critically
damaged the floors systems. Structural steel will begin to lose
strength when heated to temperatures above 1000 degrees
Fahrenheit. Steel bridge girders are bent to conform to the curved
roadway by spot heating flanges between 800 and 1000 degrees
Fahrenheit. It is easy to comprehend the loss of carrying capacity
of all the structural steel due to the raging fires fed by the
jet's fuel as well as aircraft and building contents.
Before one (especially students) sup****ts such a conspiracy theory,
they should investigate all details of the theory. To me a
practicing structural engineer of 57 continuous years (1941-1998),
Professor Jones' presentations are very disturbing.
- Structural Engineering professor, D. Allan Firmage,
Professor Emeritus, Civil Engineering, BYU
--
Al Dykes
News is something someone wants to suppress, everything else is
advertising.
- Lord Northcliffe, publisher of the Daily Mail
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