did WTC 1 and 2 contain central support collumns?

[oahuoahu]

the history channel documentary i saw 2 days ago said there were no central support collumns. the documentary was called rise and fall of the WTC, something like that

anyone else saw it?

[Gravy]

Yes. 47 in each. I'd be surprised if a documentary said they had none!

[uk_dave]

2 days is a long time for a question like that to ferment.

[DGM]

the history channel documentary i saw 2 days ago said there were no central support collumns. the documentary was called rise and fall of the WTC, something like that

anyone else saw it?
Your wrong I saw it too. This claim was not made. Do some research.

[oahuoahu]

the history channel documentary that was on 1-3 days ago said there were none, heh. hmmm i gotta go and figure out when its showing again

i forget exact name of the documentary, it was called rise and fall of the World Trade Center or something like that. it talked about how all of the WTC support collumns were on the exterior of the building, and the inside was hollow with no support collumns inside. i dont know the exact wording, i may be wrong... i need to find it

im soooo sure i saw and heard that in the documentary. im gonna have to look for it!

[Revolutionary91]

the history channel documentary i saw 2 days ago said there were no central support collumns. the documentary was called rise and fall of the WTC, something like that

anyone else saw it?

Yes I have seen it. It does say that.

[oahuoahu]

i found it. its on youtube!!!

im gonna go2sleep and watch the youtube parts tomorrow to see if i can find it...

http://youtube.com/results?search_query=rise+and+fall+of+WTC&search=

[Gravy]

Yes I have seen it. It does say that.You are wrong. It discusses and shows the core column arrangement starting at 35:59. You may be thinking of a comment just before that by someone who was referring to internal columns, meaning columns that break up the office floor space between the outer wall and the core, as in most office buildings of that era.

Please stop your behavior, R91. You are young and have plenty of time to turn your path around, but that will take a lot of effort and good old-fashioned rational thinking.

http://forums.randi.org/imagehosting/8790469a205deee3c.jpg

[oahuoahu]

here it is. at 2 minutes 20 seconds they say that the skin of the building was stronger so that you wouldnt need internal collumns

but THEN it goes on to say that there were 47 internal collumns in each tower...

lolz

but it does show those 47 internal collumns as being very small in the graphic. maybe they were bigger i dont know.

http://youtube.com/watch?v=4A7_Psnw88k

[gumboot]

here it is. at 2 minutes 20 seconds they say that the skin of the building was stronger so that you wouldnt need internal collumns

but THEN it goes on to say that there were 47 internal collumns in each tower...

lolz

but it does show those 47 internal collumns as being very small in the graphic. maybe they were bigger i dont know.

http://youtube.com/watch?v=4A7_Psnw88k



It's not so much that the internal columns are small, more that the building is big.

-Gumboot

[DGM]

Liar. Heres a torrent for the documentary

http://www.mininova.org/tor/274447
They show a simplified view but don't claim the building has no core columns. What's the point of this anyway? The building had 47 core columns.

[uk_dave]

here it is. at 2 minutes 20 seconds they say that the skin of the building was stronger so that you wouldnt need internal collumns

but THEN it goes on to say that there were 47 internal collumns in each tower...

lolz

but it does show those 47 internal collumns as being very small in the graphic. maybe they were bigger i dont know.

http://youtube.com/watch?v=4A7_Psnw88k

Conventional steel frame design would have columns set out in a grid pattern over the entire footprint of the building.

But doing this intrudes into the floor space available to be laid out for offices or whatever the building is to be used for.

So the wtc towers had external columns to their perimeter and a cluster of internal columns around the 'core' which was the space containing stairwells and lift shafts.

This enabled them to have a blank canvas for the office space where leaseholders/tenants could have any arrangement of offices/rooms they wanted without having to take into account thoe annoying columns.

But it also meant that the floor structures had to be able to span greater distances than in conventional steel frame designs.

It also meant that failure of either the internal or external columns would lead to failure of the floors because there was no intermediate columns to provide support.

It would be the difference between a 30m long beam supported at either end or five 6m long beams supported on columns at 6m centres.

[Alferd_Packer]

Please, UK Dave, don't confuse the issue with facts.