|
|
Joined: Apr 2000
Posts: 10,542
Carpal Tunnel
|
Carpal Tunnel
Joined: Apr 2000
Posts: 10,542 |
|
|
|
|
|
Joined: Nov 2000
Posts: 3,146
Carpal Tunnel
|
|
OP
Carpal Tunnel
Joined: Nov 2000
Posts: 3,146 |
No, the documentary was a BBC one.
As Helen said, it was open-plan to a fault, with lightweight floors held up on trusses. The towers collapsed because of the trusses which held the floors up being vulnerable to heat. They also, willy-nilly, provided a good deal of the buildings' rigidity. The construction method was used because it enabled the buildings to go up at the rate of nearly two floors a month.
When the fire warped and melted the floor trusses, the floors began to collapse, one on to the other, until the sheer weight of falling floors began to smash through floors unaffected by the heat. Once the floors collapsed, the buildings' rigidity was compromised and the rest of the collapse was just a matter of time, and not very much of it at that as we saw.
What they should have done - and I understand that it was accepted as best practice even at the time - was to make every tenth floor rigid, i.e. girder rather than truss-based. If they had done that, it appears, the towers wouldn't have collapsed.
I work in a building with trussed floors. Do you?
The idiot also known as Capfka ...
|
|
|
|
|
Joined: Oct 2000
Posts: 5,400
Carpal Tunnel
|
|
Carpal Tunnel
Joined: Oct 2000
Posts: 5,400 |
here is a fairly complete article on the engineering of the building.. http://www.newyorker.com/fact/content/?011119fa_FACTand no, i happen to work in a building that was build to "california earthquake standards" it is reenforced, very strong... (but it did quiver when the planes hit) the explodsion was so big, our building felt it, and its about .5 to .7 miles away (almost a k)but there wasn't much between us an the twin towers. since last year, all of the windows in the building have been coated with protective sheets that help keep the glass for shattering, and when it does break it helps it to break into crumbs (roundish fractures) not shards.. it is a handsome building. (ask Jazzo! or Rubrick!)
|
|
|
|
|
Joined: Oct 2000
Posts: 1,346
veteran
|
|
veteran
Joined: Oct 2000
Posts: 1,346 |
the documentary was a BBC oneWas it this Horizon, Cap? - http://www.bbc.co.uk/science/horizon/2001/worldtradecentertrans.shtmlmake every tenth floor rigid, i.e. girder rather than truss-basedCan't find a mention of this, though, so maybe not. I notice Leslie E.Robertson features significantly in both this program and Helen's article.
|
|
|
|
|
Joined: Mar 2000
Posts: 11,613
Carpal Tunnel
|
|
Carpal Tunnel
Joined: Mar 2000
Posts: 11,613 |
Thank you, CK, for your caring and concern about an event that happened in a country that isn't yours. I haven't posted this until now because I didn't want to break in on the humor--which was really funny. I found it interesting that the thread jumped immediately to humor and stayed that way for so long. I wonder if this is an example of us avoiding coming face to face with something that has caused, and will continue to cause, extemely strong negative feelings. I continue to hear, as I did 50 weeks ago, that so-and-so can't bear to see it again and again; and I think of all the people who HAVE to confront it again, day in and day out, one way or another. I ache for them--for all of us, really. And so on one hand, I feel that it is unfair of me to turn off the sight that brings the pain; and yet, who will it really help if I do force myself to watch it? I have no answer.
tsuwm, thank you for that article. I have seen the towers in movies, etc., and that does cause a wince. We rented the movie Collateral Damage a couple of weeks ago; it was eerie. Schwartzenegger came on in a clip at the end to say that they had decided the release of the movie would have to be postponed. I think it had been due to come out in October 2001.
|
|
|
|
|
Joined: Mar 2000
Posts: 6,511
Carpal Tunnel
|
|
Carpal Tunnel
Joined: Mar 2000
Posts: 6,511 |
That's all I can say. It's not a question so much of avoiding strong negative feelings as it is of allowing television to invade our hearts, reopening wounds that may have started to heal. We know what happened, do we need to see it again (and again and again)?
Meanwhile, I heard that choirs around the world will be doing a "rolling Mozart's Requiem" on the day, at 8:46 AM as time zones change (oy vey, the voice! I know *I can't sing in the morning....).
Can anyone outside of NY verify this? I know the local arts college here is performing it.
~~
Yikes!® A totally non-word post.
|
|
|
|
|
Joined: Dec 2000
Posts: 13,803
Carpal Tunnel
|
|
Carpal Tunnel
Joined: Dec 2000
Posts: 13,803 |
|
|
|
|
|
Joined: Sep 2001
Posts: 6,296
Carpal Tunnel
|
|
Carpal Tunnel
Joined: Sep 2001
Posts: 6,296 |
I think a post about a rolling requiem is a word post. I mean, there's all kinds of words in a requiem. And to hear about a rolling requiem, a term I've never heard before, is enlightening. What a great idea!
[Makes me wonder what kind of event could cause the chefs of the world to unite and propose a rolling rolling pin...]
|
|
|
|
|
Joined: Mar 2000
Posts: 11,613
Carpal Tunnel
|
|
Carpal Tunnel
Joined: Mar 2000
Posts: 11,613 |
Oh, thank you, you two. What a beautiful thing to do. I have sung that gorgeous work--the only Mozart piece I truly love. If I can't find a performance here, I may just put my recording of it on. After all these years, I still remember most of the Latin, of which I understood almost nothing.
|
|
|
|
|
Joined: Mar 2001
Posts: 4,189
Carpal Tunnel
|
|
Carpal Tunnel
Joined: Mar 2001
Posts: 4,189 |
Thanks, CapK.
Yes, I really don't think all the "coverage" overload is necessary. I visted our neighbor who lost her son in the towers last Thursday, and she's still not doing too well...I think all this media bombardment is getting to her, and probably having the same effect on other families and friends.
A dignified remembrance and ceremony to mark the day and moments of the events is a good thing, and should take place. But I won't be watching any wall-to-wall coverage, it's just too much. Pretty hard to avoid it all in my area, though.
|
|
|
|
Forums16
Topics13,913
Posts229,809
Members9,187
| |
Most Online3,341
Dec 9th, 2011
|
|
|
0 members (),
459
guests, and
1
robot. |
|
Key:
Admin,
Global Mod,
Mod
|
|
|
|
