Inward turned channel connection
Inward turned channel connection
(OP)
For the landing header channels in a stair construction I am always used to the having the channel web flush against the supporting wall and bolting through with Hilti anchor bolts.
However, in a current project the architect wants the channel flanges turned toward the supporting wall. Bolting in this fashion puts the bolts into bending and shear. I am not so sure this is a good situation. Please see Section 1-1 on the attached sketch.
Any ideas on how this connection can be successfully carried out?
However, in a current project the architect wants the channel flanges turned toward the supporting wall. Bolting in this fashion puts the bolts into bending and shear. I am not so sure this is a good situation. Please see Section 1-1 on the attached sketch.
Any ideas on how this connection can be successfully carried out?





RE: Inward turned channel connection
RE: Inward turned channel connection
Outside that, I agree with hokie66...box the channel to put the bolts in shear only.
If you are close on the bending + shear, you might upsize the bolts enough to handle it. Usually the vertical shear on a stair section at the top of the stringer is low because of the angle of the stair. It pushes against the header, more than it tries to slide down from it.
RE: Inward turned channel connection
The stand-off configuration in your sketch will not be buildable in the field - the stand off will all be different lengths.
RE: Inward turned channel connection
RE: Inward turned channel connection
That's a mechanical engineer's solution. A structural engineer would never get away with that. On the other hand, MJ thinks like us.
RE: Inward turned channel connection