Intact towers with GZ foreground
Pakistan Earthquake collapse: Easy Hunting!
I don't need help hunting the rubble here. This was a 10 story apartment that underwent progressive collapse in the Pakinstan earthquake. The stacked up concrete floors are clearly evident.
True, this is a dfferent type of construction - a steel-reinforced concrete frame, not a pure steel frame. Generally speaking, masonary structures are more brittle than steel, thus more prone to this type of collapse. The twin towers' floors were 4" of concrete poured into steel pans, held together by a cross-braced trussing system.
How could the WTC type of structure, which is substantially more resistant to progressive collapse, somehow be less resistant to self disintegration?
Isn't a twin tower at least 11 times taller and four times the footprint of the Pakistani building? At least. That would mean we should expect at least 88 times the amount of intact concrete. Yet we don't find anything like that in any of the pictures of ground zero.
I'm still hunting.
