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Strategies & Market Trends : The Residential Real Estate Crash Index
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To: Jorj X Mckie who wrote (229248)11/17/2009 10:42:50 PM
From: alanrsRead Replies (1) of 306849
 
"In other words, we didn't know how vulnerable steel buildings are to prolonged high temperature fires?"

Actually they do know this. The steel is fire proofed but there is a point where it will fail and the weight of the building above would collapse it just as the world trade center buildings did. I was home 9/11 and watched the second plane hit. I was surprised at how long it stood, given what looked like a very intense fire. I built high rises for a living. There are specs on that building that will give a time and temperature above which the steel will fail, plus quite a few support columns were taken out by the plane itself. No conspiracy needed.

ARS

Edit: I probably should have posted this to the other fella. My understanding is that the engineers thought they had an indestructible building. Obviously they were wrong, although there were sections of exterior columns standing some stories high (7?) after it fell, which was impressive.
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