Thoreau72
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Re: MIT Prof Kausel - Structures Like WTC does not Collapse into its own Footprint[W:
Yes, and some strange force managed to blow large pieces horizontally hundreds of feet. That force was NOT gravity.
The floor slabs in region outside the core were designed to support 58 # / SF live load... if the load is more... the slabs "fail"... they crack and shatter.. and break free from the column/axial system... they land on the floor below and the process repeats... THIS IS DRIVEN BY GRAVITY. These floors were not even designed for warehouse loads let along concrete slab (sections) dropping from a min 12'.
Yes, and some strange force managed to blow large pieces horizontally hundreds of feet. That force was NOT gravity.