Quote:
Originally posted by Deke4life
the building not hit by terrorists on the entire opposite end of the block from towers one and two (other buildings were 50 feet away and they were fine) came plummiting down in the fashion of being pulled, the only way in history steel buidlings have fallen this way (pulled buildings), of course all happening after the building's owner said that he pulled the buidling.
|
the proximity of, in this case, buildings, to the site of the calamitous event increases the probability of those buildings sustaining varying levels of structural damage. that much is obvious. but if buildings that stood "50 feet away" remained standing or sustained minimal damage, they are the exception, not the rule.
Wikipedia-
Quote:
|
In addition to the 110-floor Twin Towers of the World Trade Center itself, five other buildings at the WTC site and four subway stations were destroyed or badly damaged. In total, on Manhattan Island, 25 buildings were damaged. Communications equipment such as broadcast radio, television and two way radio antenna towers were damaged beyond repair. In Arlington, a portion of the Pentagon was severely damaged by fire and one section of the building collapsed.
|
*
a related abstract
may 2002 development of progressive collapse analysis...
results of googling 'examples of progressive collapse'