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Joined: Jul 2002
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Hero
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Hero
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Apart from planes hitting them, wasn't the collapse of the World Trade Centre towers partially down to structural metal failure caused by rusting and deterioration?
I thought that, in theory, the towers were strong enough to be hit by a plane. But the frame was not up to standard, thus causing the total collapse rather than just localised damage.
I am now keeping a close eye on the PFI build going on outside my window.
The cladding looks like one gust of wind will take it off.

In a previous hospital I asked the estates department if I could borrow a masonry drill to put a cable through a wall. They told me to poke it with a long screwdriver. It worked!! A lot of breeze and not much block in modern structures.

Robert


My spelling is not bad. I am typing this on a Medigenic keyboard and I blame that for all my typos.
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Expert
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Expert
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Originally Posted By: RoJo
Apart from planes hitting them, wasn't the collapse of the World Trade Centre towers partially down to structural metal failure caused by rusting and deterioration?
I thought that, in theory, the towers were strong enough to be hit by a plane.


As I recall, the towers DID take the initial impact of the planes. Unfortunately the subsequent fires were hot enough to melt or at least soften the steel thus causing the collapse an hour or so after impact.

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Philosopher
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Philosopher
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Absolutely right Jonathan. The structural failure was due to heat affecting the cross member supports, which were "weaker" than the main vertical supports, which tehn collapsed causing tha main supports to buckle under the weight.
There was no evidence of weakening of the structural support due to rusting or deteriotation!!!


Sometimes You Can't Make It On Your Own.
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Sage
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Sage
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Old St George's Hospital site

At least some old hospitals didn't get knocked down

Last edited by Bioman; 30/01/08 8:56 AM.
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Philosopher
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Philosopher
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They just get converted Bioman!!
In fairness, only the front facade of "St.George's Hyde Park Corner" remains from the original hospital (even down to that title still being visible at the top of the building), the rest was gutted and renovated. It needed to be to get rid of the rat infestation in the basement and the stables at the rear were way past their usefulness!!!


Sometimes You Can't Make It On Your Own.
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Super Hero
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Super Hero
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Why am I not surprised by this? frown


If you don't inspect ... don't expect.
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Dreamer
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Dreamer
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I had my appendix removed there in 1989, don't remember getting any X-rays done though.

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Super Hero
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Super Hero
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I thought I recognized you! wink


If you don't inspect ... don't expect.
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