Stage Collapses At State Fair, Five Dead, 45 Injured


link:

http://latimesblogs.latimes.com/nat...-dead-identified-singer-expresses-horror.html
 

yes, heard tragedy morning.

same thing happened in ottawa, scant month ago.

unusual wind sheer blamed, more anchor lines ground supports needed these tall structures. provide quite 'sail area' when wind comes up. psi on tall structure must significant.
 


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