Extinct but not forgotten Staff Member
So a Verniage demolition would have worked perfectly for Towers one and two. . . . how many floors (minimum) would have been sufficient to get the same total collapse? Obviously, 15 floors was more than sufficient?There is no need for calculations for buckling capacities.
All you need to accept is the momentum of the upper floors pulverised the floors below, because those floors' truss connections were miniscule.
Neither the core nor the perimeter walls had the ability to freestand once the floors were obliterated. That is why they toppled radially out over such a massive debris field. Both core and exterior column panels.