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Strategies & Market Trends : The Residential Real Estate Crash Index -- Ignore unavailable to you. Want to Upgrade?


To: Think4Yourself who wrote (229277)11/18/2009 7:49:12 AM
From: alanrsRespond to of 306849
 
"The beams are covered with concrete"

I didn't know that, usually it's some Gunnite material below with steel deck and concrete above on the steel and no fire protection on the concrete core.

"From an engineering standpoint the sequence of events was totally predictable."

Totally agree. When I saw that second plane hit the first thing I said to myself was "that suckers coming down".

"A number of supposed engineers went on TV and said all this couldn't happen."

Probably the children/grandchildren of the Titanic engineers.

ARS



To: Think4Yourself who wrote (229277)11/18/2009 8:04:33 AM
From: arun geraRespond to of 306849
 
>Once the first floor failed, the massive impulse from tons of material falling 10 feet guaranteed every other floor was going to fail.>

Explaining the floor failure is easier. It is more difficult to explain the failure of the core column. If the floor yields first, the core column actually has less and less weight to support as all the rubble follows the least resistant path down the ruptured floor area.

-Arun