Sunday, 20 July 2008

Why the World Trade Center Tower's floors could not 'pancake' collapse as we have been told.

[Originaly Posted at blogOptica by R H Nigl]

The typical floor structural configuration for the World Trade Center Towers spanned from the exterior wall columns to where the inner 49 columns formed support for the elevator shafts, stair towers, air shafts and mechanical systems. Thus, each floor was NOT a monolithic slab and structural system spanning across each tower from one exterior wall to the other three, as we are led to believe. For the floors to 'pancake' uniformly, the first floor to fail would require all perimeter connections to fail almost simultaneously.

Each floor, in fact, terminating at the contiguous structural core, resembled a square 'donut', with the structural core, so to speak, being the 'donut hole'. Failure of floor structural support in any quadrant of the building plan, or even in any half, thus, would have failed ASSYMETRICALLY. And at the time of failure would not, could not, have 'pancaked' symmetrically as the misleading NIST and commission reports indicate (diagrams shown in these reports are graphically out of scale, and do not accurately represent the building's massive, in fact, over designed, internal structure).

Orignal WTC Construction Drawings:

Floor Plan, 35th to 40th Floors,

Building Sections

How do I know this? What is my personal technical reference? From 1970 to 1972 I was a young design development draftsman for the firm of Minoru Yamasaki Associates, the design architectural firm for the WTC. I was part of the team that detailed the complex aluminum cladding fenestration details for similar building and also worked, in part, on detailing the WTC Executive Floor interior paneling and updating the WTC plans to reflect various 'as-built' construction changes. Based on actual project experience, I was, and am, quite familiar with the structural system at work on the towers, both at a technical and intuitive level.

From the many videos available, to us, and to you, it is clear that the initial devastating floor overloading was uneven, and then, suddenly, floor by floor, became uniform. I would have expected a random destructive overload to fail only a portion of the building's floors at a time. This did not happen. The failure, thus, appears controlled and suspicious.

The towers could not possibly have collapsed as we have been told in the 'official' reports, one floor, coincident, on top of another without powerful external forces at work, that is, forces other than the plane crashes and the relatively low temperature jet fuel fires. That is, explosives. The WTC towers were intentionally demolished.

R H Nigl

[Posted at the SpookyWeather blog, July 20th, 2008.]

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