in many types of construction the formula is based on
how many pounds or tons of force will it take to sheer off
the bolt or fastener... i don't see where glue in a hole follows that principle.
I thought of the same thing BF : about why in the hell the ceiling panels had to
be concrete but maybe it's in case of a fire
it has to be a non flamable material.
still the long bolt or rod should of had a L-shape where it hooks
onto a ledge of steel , you'd think-> instead of the design in question.
From what I heard,
The area that collapsed had bolts shorter than called for from the plans!
They don't / didn't call it the "Big Swig" for nothing!!!
(as in all the frigin workers who sat in the bar rooms all day when they were supposed to be on the job!!!
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