sloped moment connections

huangyhg

sloped moment connections
shemp,
i too am in a moderate seismic zone.  i would feel comforatble applying fema 350 to a 12/12 slope so long as two problems were addressed.  one, i would require that a true bevel be placed on the shop welded plates to the column, to require proper area of weld.
two, i would resolve the tension force into its two components when checking the column for stiffner requirements.  this might give you a very high load (40% over what a 90 degree connx would have for a 12/12).
the only other concern would be that erection of a shop welded flange plate connection would be very difficult.  i know there are some steel erectors in this forum who could speak to that.  but swinging a beam in on the proper slope could prove difficult