25-08-2013, 12:11 PM
(This post was last modified: 25-08-2013, 12:29 PM by Tony Szamboti.)
Phil Dragoo Wrote:Tony
I see your propagation calculation and recognize the calculation twice two oh seven squared is 293 squared.
Your video is dramatic as is one titled WTC1 collapse initiations visible signs:
The official explanation is mechanical damage plus heat weakening.
The observed event is a sudden floor-wide flame spread with exterior ejection of smoke and debris.
Where is the "eight degree rotation"?
The appearance is that suddenly a multifloor void was created intitiating rapid, smooth, uninterrupted drop of the entire structure.
I take it this is where your "columns not resisting" comes in--
According to the video NIST would not release data until a FOIA suit was brought.
The recorded witness accounts of the firefighters were suppressed.
Evidence of explosives was not sought, yet has been described in reports of nanothermite, molten steel, sounds of explosions, et cetera.
The official commission attempted to pronounce "case closed" on the basis of a hypothesis which required floor trusses to sag forty inches.
Tests showed two to six.
The structure was scaled to provide more robust cross sections descending yet no deceleration presents in any video; collapse is continuous.
In each of the three structures.
Collapse of a skyscraper from fire had not previously been demonstrated.
Nor, we suspect, in this case.
Phil, the building actually drops vertically a couple of stories, at a very small tilt of 1 degree or less, before the 8 degree tilt occurs. NIST is wrong about the 8 degrees occurring immediately and before any vertical movement. I don't think they looked at it close enough. The columns were never involved in the collapse based on acceleration measurements and column energy absorption capacity calculations. In other words, had the columns been involved the accelerations achieved would not have been possible. The small tilt does not misalign the columns in any significant way and inertia and the reality that buckling ductile columns don't just separate would cause the upper section to stay aligned in the absence of any significant lateral load on it, so there is no reason for misalignment. We find the collapse should have arrested after a one or even two story natural fall, as there would not have been enough kinetic energy to get through the columns.