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Rev 4
© All Rights Reserved
Rev 5
(Click on image to enlarge)
I created this for an offline discussion.
Surfside, FL condominium building partial collapse. (Palm Beach Post June 24, 2021)
Rev 5 (July 2, 2021)
Conjecture (V collapse):
Column at parking space 88 fails, for reason(s) unknown. (Note: column spacing north to south is not even. The same is true for east to west column spacing.)
Two V collapse points start. One along north-south line between two columns directly north and south of failed column, and one along west-east line between two columns directly west and east of failed column.
As weight bearing overload approaches critical mass, Unit C video (Santana) shows noticeable evidence of downward forces due to the failure point below.
Once full collapse begins, a cascading domino effect occurs. (warning: disturbing video) So a single column failure brings down all adjacent areas?
Addtional references:
video of debris inside underground parking garage entrance, before collapse.
closeup of that same video.