posted on Jun, 19 2010 @ 09:49 PM
reply to post by AquariusDescending
Well most truthers whine "No steel frame building ever collapsed from fire...."
Here the north section of the building collapsed, from fire alone....
Yes the First Interstate Bank (1988) survived as did Meridan Plaza (1990)
Reason First Interstate survived was (1) 400 LA Firefighters actively
fighting the fires (2) Fireproofing on steel work prevented structural
Meridan Plaza fire was finally extinguished by sprinkler system on 30th floor after consuming some 6 floors. Building was so badly damaged had to be
It was also shown that if fire protection to structural members is adequately designed and applied with quality control, fire damage to fire exposed
members will be minimised and structural collapse can be prevented.
Comparison can be made with WTC 7 which burned for similar lenght of
time before structural collapse. Even then major differences - WTC 7
had no water for sprinkler systems to halt spread of fire, WTC 7 was also
47 stories vs 9 for Delft University. WTC 7 was of unusual construction
with long span cantilever truss and transfer beams for structural loads
Add in fact that much of south face was slashed open by debris from WTC 1.
Of course in case of WTC 1 & 2 buildings were struck by 150 ton aircraft at 500 mph - something truthers seem to forget.....