Posted: Nov 30, 2010 3:23 pm
by psikeyhackr
Weaver wrote:Are you under the impression that the floor joists on the (say) 10th floor were designed to support the weight of the 95 floors above?

I presume you are talking to me.

The is why I make a point of distinguishing between FLOORS and LEVELS. By floor I mean the standard floor assemblies, the 4.33 inch concrete slab and the corrugated steel pans that the concrete was poured on and the 35 and 60 foot trusses that the held the pans. It is certainly curious that we NEVER hear how much those complete assemblies weighed. But those assemblies were attached to the core on their inner edge and to the spandrels of the perimeter columns on the outer edge.

By LEVEL I mean a 12 foot height including one floor assembly, 12 feet of the core and 12 feet of the perimeter columns. So as the thickness of the columns increased down the building the weight of the LEVELS increased.

The CN Tower in Toronto gives a visible example of how that distribution needed to change.

So why can't the nation that put men on the Moon tell the entire world the TONS of STEEL and TONS of CONCRETE that were on every level for NINE YEARS. This is SCIENCE. ROFL

9/11 is the Piltdown Man incident of the 21st century.