Hearst Tower Connections

[peru4444]

Does anyone have any good information nodal connections for Diagrid structures? In particular I am curious about the connection design of the Hearst Tower NYC. Were the nodal connections designed as rigid or pinned?

 

[slickdeals]

http://www.structuremag.org/Archives/2006-2/F-Hearst-Tower-Feb-06.pdf

I am sure if LSM76 is patrolling, you will get to hear it from the horse's mouth.

We are Virginia Tech
Go HOKIES

 

[peru4444]

Thanks for the link. Very interesting. I'd be interested to know why they designed the node connecting the main diagrid members as a moment connection. Surely a pinned connection (e.g 30 St. Mary Axe) would have been much simpler to construct