Random observations on 9/11

Originally Posted by Clip-Clop

Because of the footprint and the type of structure that 7 was the only likely cause of the fall that would make some sense structurally that I could come up with (along with a few structural engineers in my office) is that the underground support structure was compromised by the collapse. Hence the straight down fall into itself. Lower Manhattan, particularly that area is basically suspended over tons of open space for the tubes. I had them actually write something up for me. I will see if I can find it.

That would be great. Thanks!

[Clip-Clop]

Originally Posted by Coach Pants

That would be great. Thanks!

We no longer have it here, since our server died but they pointed me to the "widely known" (they are engineers mind you) Structure magazine article confirming their theory.

http://www.structuremag.org/Archives...sanz-Nov07.pdf

RBE posted that earlier. I need more explanation.

That is all other engineers have to go on? Not one of them remembers how some politicians and others reassured the public the towers were safe?

All of a sudden they and building 7 are severely flawed? So basically fiery debris caused a high rise building to collapse.

Still don't buy it.

[MaTH716]

http://www.youtube.com/watch?v=UndqJTLin9A

[Rudeboyelvis]

Originally Posted by MaTH716

http://www.youtube.com/watch?v=UndqJTLin9A

detonation documented*:

http://www.youtube.com/watch?v=BZmSH...eature=related





*it's youtube, draw own conclusions

[MaTH716]

Originally Posted by Rudeboyelvis

detonation documented*:

http://www.youtube.com/watch?v=BZmSH...eature=related





*it's youtube, draw own conclusions

I forgot to post this with my link.

[Scav]

I'll probably regret answering this, but when it happened, they spoke about the jet engine fuel causing severe temperatures that were never planned for

[Clip-Clop]

Originally Posted by Coach Pants

RBE posted that earlier. I need more explanation.

That is all other engineers have to go on? Not one of them remembers how some politicians and others reassured the public the towers were safe?

All of a sudden they and building 7 are severely flawed? So basically fiery debris caused a high rise building to collapse.

Still don't buy it.

I didn't see that earlier posting. Our guys are more on the Con-Ed, underground structure and the way the beams were sistered and framed out that any weakening beneath those beams including 79 (which was a solo) would have easily been enough to drop the whole thing in that manner.
two buildings like those falling nearby is effectively an earthquake of pretty serious proportions.
I do remember all the safe statements, all too well actually. That was part of my request for the thoughts of those I use myself when we build.

Skyscrapers on stilts...brilliant.

I'm not in favor of rebuilding on the site. I feel that it's sacred ground and what they've done to it is awful.

To each his own but the waterfall is creepy as all get out.

And I couldn't imagine working in the new tower...especially on the holiday and at night.

[Clip-Clop]

Originally Posted by Coach Pants

Skyscrapers on stilts...brilliant.

Exact quote from my newbie S.E. this morning, while shaking her head.

[Danzig]

Originally Posted by Coach Pants

Skyscrapers on stilts...brilliant.

that's something i've always looked at and said not for me. they build those huge skyscrapers-but all that weight is carried by the very bottom supports. if they fail-there goes the neighborhood.
engineering takes so many things into consideration-but the magnitude of the catastrophe that day isn't something anyone could foresee. a huge fire, and no sprinklers, and god knows how much movement and strain due to the other buildings collapsing.
and sometimes there are mistakes made. there was that walkway years ago that collapsed. bridges have been done incorrectly-that bridge that collapsed in st paul-they'd overloaded part of the span with building materials. as soon as it happened i told my husband that was probably what did it. of course they had denials initially, but in the end, that was exactly what was wrong.

we push our luck trying to feed our egos by building higher and higher. there are limits no matter what we want.

[dellinger63]

Let's never forget the religion that led to these animals deciding it was a good idea to kill innocent civilians.