Journal of 9/11 Studies: WTC 1 Collapse – What if the Columns Miss?
Posted by Anders den april 2, 2008
Ny artikkel på Journal of 9/11 Studies, signert dr. Frank Legge:
WTC 1 Collapse – What if the Columns Miss?
Frank Legge (PhD)
31 Mar 2008In the official explanation for the collapse of the twin towers it is asserted that one storey, near the plane impact region, completely and suddenly collapses. This allows the upper section to fall freely down and strike the lower section. It is asserted that the kinetic energy in the falling section is sufficient to destroy the integrity of the lower portion of the tower and cause complete collapse at near free fall speed. NIST does not produce its own calculations regarding the size of the impact, relying instead on the calculations of Bazant and Zhou, who say that collapse requires “one powerful jolt”. 1 Gordon Ross however has calculated that the strength of the steel columns is sufficient to bring the collapse to a halt. 2 His calculation relies on the columns of the upper section making a good connection withthe columns of the lower section.
Some have argued that many of the falling columns might have missed the lower columns and that there would not have been enough strength in the floors, and other structures which the columns would have encountered, to bring the motion to a halt. Let us examine what would happen in this case.
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