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Old Posted Jan 13, 2009, 4:06 PM
GWHH GWHH is offline
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Join Date: Jan 2009
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WTC floors was 4 inches thick

The WTC center had floors only 4 inches think, made of light weight concrete. I wonder if it would have been thicker and/or not made of light weight concrete, I wonder if it would have faried better on 9/11.

Quote:
Originally Posted by Coldrsx View Post
^completely depends on the materials and engineering.

Generally speaking a concrete residential highrise is 7-8" slabs, office are 9-10" and hotels somewhere in between.

Anticipated loading requirements also play a part and change these numbers.

Parking slabs are thicker, up to 12" but have far more rebar.

however, it depends on column spacing and the such as well
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