So the floors unzip from the breach?Floor/perimeter connections would have to carry diagonal and horizontal loads lost by perimeter frame vertical breach
So the point of a vertical breach is to cause many floors to unzip?
Besides, how do we even know that the floors separated - except in the NE quadrant? We know that when the perimeter frame fell, the west penthouse was still visible.
No we dont. A collapse in the NE may cause southward seat due to the shift of CG.know the east half of the structure was leaning to the north because the first move of the perimeter frame was for the east half to fall north, with no down motion.
What does it have to do with the gash anyway?