"As I understand" comes from a TV program some time ago where the design
of the buildings was discussed and theories for the collapse were put
forward - I've no idea whether the information is accurate. And no I
didnt read the information quoted.
Elizabeth Dodd wrote:
On Monday 18 September 2006 17:00, Richard Hosking wrote:
As I understand it the heat of the fire about 2/3 of the way up the
building caused a failure of the supports at this level from each
corner to the central lift shaft. Once this had occurred the weight of
the building above caused this level to collapse and impact on the level
below. This failed on impact also and there was a progressive collapse
after this. Each floor was essentially suspended from the corners -
there wasnt much strength in the central shaft. If the fire had been at
the top of the building the collapse probably wouldnt have happened.
Perhaps "as you understand" doesn't accord with the history given by the
patient?
I've learnt that a third building fell down, and I paid as little attention to
American media as possible after the event, so that's my deliberate effort on
evading getting a history.
Perhaps you'd better read the carefully written information suggested by Peter
and Ian?
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