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Long-Slotted holes loaded along the slot

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swearingen

Civil/Environmental
Feb 15, 2006
668
On page 16.1-106 of the 13th manual it clearly states, "Long-slotted holes are permitted without regard to direction of loading in slip-critical connections, but shall be normal to the direction of load in bearing-type connections."

I always understood that all slip-critical connections had to be designed as bearing connections first in case of overload slip. I can't imagine how this detail makes sense in a seismic connection.

Any idea as to the research behind it?



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