<detroitbiodiesel@gmail.com> wrote in message
news:1156255976.921447.179380@i3g2000cwc.googlegro ups.com...
> name one building that was brought down by fire dumb ass.


OK here's 4 that I know of without even thinking about it

The St. George Hotel in NYC collapsed during a fire in 1995

The York Hotel - a 12 story steel framed building in northern
England collapsed after a fire in the late 70's. I personally
saw that one.

The Morborne transmitter tower near Peterborough in England
caught fire and collapsed on the evening of Saturday 30th October 2004

Literally dozens of steel framed buildings in the City of London
were destroyed by the fires started during the Blitz of 1940

Steel is VERY vulnerable to collapse during a fire and structural
designers are well aware of the risks which is why they install
fire protection systems and sprinklers. The usual risk assumption
is a fire starting on one floor and spreading slowly.

Now if you destroy those fire protection systems (by flying a
160 ton aircraft into the core of the building) before starting a
fire that simultaneously involves several floors (using 30 tons
of dispersed kerosene) its hardly surprising if that building
fails.

This is especially likely when you realise that WTC 1,2 and 7 were
extremely unusual designs. They used a steel core and external shell
linked by lightweight steel trusses that not only held up the walls
but were necessary to prevent failure of the building by buckling.

Firemen HATE trusses. They have VERY poor fire resistance
and collapse rapidly in any large scale fire. In the UK fire fighters
will not enter a truss floor building unless life is imminently
at risk. They have a saying ' Never trust a truss'

> the madrid
> building in spain burned for two day and at twice the temp as the trade
> towers and it didn't fall so you dont know shit.

The concrete core was left standing but the steel outer sections
and floors collapsed

Keith



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