Hi all,
I am on my way out of the other WTC7 thread, but thought I might add this.
images.google.com "core wtc"
My nice auntie gave me the book, Men of Steel: The Story of the Family That Built the World Trade Center by Karl Koch III and Richard Firstman; which
sat in the bathroom a long time before I could open another 911 periodical.
Upon reading it, I found it to be a descent historical overview of this family’s construction management involvement with the towers. Granted there
is a NIST-like chapter attached for official collapse explanation, but also some revealing anecdotes, such as the complete lack of thousands (yes
thousands) of concrete floor panels found in the ground zero rubble.
These were very large steel, aluminum and concrete prefab units; the infamous ‘flap-jacks’ to the NIST pancake theory - which they now discount I
believe. Regardless, few if any pancakes were recovered at ground zero, much less an acre sized 36’foot thick cake that would have been almost 4
stories of pure concrete ( ~110 floors x 4” concrete). A number that discounts the volume of steel spanning elements buttered in-between each
concrete layer. So fine, if no pancake theory where are a thousand plus concrete floor sections? Unfortunately, the book doesn’t have much to say
about WTC janitorial services, which evidently must have sucked, because AS steel towers ‘collapsed’ – we all saw just how 'dusty' they were
inside!
I am only venting here out of my own frustration in asking you all how many fundamental anomalies must be encountered before that 100th monkey can
break from his misconception fit to an actual discrete event? Face it, our structures don’t fall that often, and thousands of people hours and
resources are specifically put into place to keep things standing. We don’t have to be physicists or engineers to ask the important questions. Did
the buildings fall immediately after the plane strikes? Did any of NIST’s metal samples taken from ground zero show characteristics even close to
steel deformation temperature – and what about those floors with no obvious fire or damage? What were the damaged sections of WTC1/2/7 falling
through exactly– perfectly solid structure? Where is that central core steel box frame with its own separate floor system? Could that have gone to
rubber or was it simply felled onto Central park….Ad nauseam
Sorry. I really don’t want to distract from your good thread, but all 3 buildings fell down flat - period! However very basic rules in margins of
safety, material strengths, distributive loading, center of gravity, - even dumb sprinkler systems still try their damnest to apply even in the most
chaotic events.
Please keep up the great work and discussion on all sides.
-scrap