9/11 documentary now

[bugsyblue]

2.3tn in transactions, not in budget, when they had a full forensic audit and reintegration to a modern SAP they reduced that to $900bn. That's over the history of it's existence, which isn't really surprising when you think about it, they wouldn't publish or record some transactions for security reasons.

Ah okay, over the course of their whole existence! I didn't realise that, really not a conspiracy then.

 

[Blue Hefner]

As I see it...and as a senior structural Engineer I watched it live with called it...these were dual core buildings, concrete inner steel outer. Steel beams braced against the inner concrete core, and which supported precast slabs. The impact and heat caused the angle supports to the slabs to fail, they collapsed vertically on to each other, finally stacked up and the sheer weight brought the rest down from within. The 2nd tower hit was the first one to collapse as the plane near enough took a corner out at a lower level, more weight above.
The second to collapse was finally brought down because the first one went, they stood or fell together.
Both survived +30mins fire, which was probably what they were designed to do...nowadays buildings of that nature would be designed for +90mins.
The underground station concourse common to both, I believe survived, probably due to it being designed to carry the weight above x 2.

No explanation why WTC7 went down with the ship.

Thanks for that - any opinion as to why there appeared to be no resistant from the floors beneath during the collapse?

 

[aguero93:20]

Ah okay, over the course of their whole existence! I didn't realise that, really not a conspiracy then.

Nope. With the best of practises and technology you'll still make human errors and things will go missing, you just declare them on the books as a positive or negative and get on with it eventually.

 

[manctheknife]

Thanks for that - any opinion as to why there appeared to be no resistant from the floors beneath during the collapse?

It was the sheer weight and cumulative stacking of the floors above that collapsed the floors below which were untouched by the fire/heat. As the floors began falling they collected another floor on each one they went through...if that makes sense. The floors below being supported not by the beams, but by angles welded to the beams.
The steel perimeter columns and external skeleton core fell inwards towards the concrete inner core, and that is pretty much what they were left with.

 

[blueonblue]

The floors below being supported not by the beams, but by angles welded to the beams.

Simply not true, there were close to 4000 shear studs tying the beams directly to the floor and each other, nor does it increase the weight on the structure to a point of complete collapse, your theory would have a time delay as each floor impacts and assume that of all eighty support columns not one managed to provide even a token resistance of a weight it was designed to carry by a factor of three ( Each beam was rated at a third of the weight on its placement), so the free fall seen in the footage makes a nonsense of that one.

 

[manctheknife]

Simply not true, there were close to 4000 shear studs tying the beams directly to the floor and each other, nor does it increase the weight on the structure to a point of complete collapse, your theory would have a time delay as each floor impacts and assume that of all eighty support columns not one managed to provide even a token resistance of a weight it was designed to carry by a factor of three ( Each beam was rated at a third of the weight on its placement), so the free fall seen in the footage makes a nonsense of that one.

You know best mate.

 

[gordondaviesmoustache]

All he is qualified to do is comment on the structure of a futon and cushions!!!

You forgot to highlight the 'architect' bit ;-)

 

[gordondaviesmoustache]

That my friend is pure shite, no steel structured building EVER has fully collapsed due to a fire, nor is it "Expected" in any other circumstance short of a controlled demolition.

This was typical of the main stream media seeming to address the many inconsistencies but parading a few barmpots to discredit the argument, try watching "Incontrovertible -by Tony Rookel" on you-tube, this features a range of professionals who know what the f*ck they are talking about by virtue of their job, experience, and just plain old physics, with not a foil hat wearer in sight.

Ok don't shoot the messenger from a conversation from 15(!) years ago. I won't pass on your comments as I'm currently angling for an invite to the opening ;-)

 

[blueonblue]

Not shooting at you gordon ;0), just the implication that there was an ounce of truth in what your cushion designer mate came out with.

 

[blueonblue]

You know best mate

Yes I do, strange that a senior structural engineer like your self does not ;0(