Robert Seeberger wrote:
I hypothesize that the damage to the outer ring caused load shifting,
with the inner core acting as a fulcrum. On the other parts of the
affected floor compressive forces became [the opposite of compressive]
forces or torsive forces beyond the rating of bolts and welds. One by
one members give way, transfering even more force to remaining members
until collapse is initiated.
Tensile? Was that the word you were looking for?
Julia
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