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Re: Structural failure of NY's WTC



At 14:19 9/16/01 -0700, Roger Freedman wrote:
Tod Rittenhouse, an expert in blast engineering from the
international consulting engineering firm Weidlinger Associates,
appeared on CNN to discuss the collapse of the WTC. See

http://www.cnn.com/2001/COMMUNITY/09/13/rittenhouse.cnna/index.html

Here's a crucial excerpt:

"CHAT PARTICIPANT: What can you tell us about the escape routes
for people in a high rise building such at WTC? How safe is it
really to be in the upper levels of such a tall building during
an emergency?

RITTENHOUSE: The emergency egress requirements are well thought out.
And every building has an emergency egress plan. The time to
egress the WTC, for example, is approximately **two** hours.
And that is why we have requirements to fireproof buildings
for **one*** or two hours to allow orderly egress. "

Roger A. Freedman
Department of Physics and College of Creative Studies
University of California, Santa Barbara

The asterisks are mine. So much for experts.


brian whatcott <inet@intellisys.net> Altus OK
Eureka!