Horizontal Shear
Horizontal Shear
(OP)
Hi all,
I'm designing a member that is supporting vertical load. The member is to consist of 2 steel beams, one placed directly on top of the other.
I want to design them to act compositely and therefore I want to use bolts to fix the top flange of the lower beam to the bottom flange of the upper beam.
I understand that it is the horizontal shear I need to calculate in order to calculate the shear on the bolts, but I don't know how to calculate this horizontal shear.
Can anyone shed some light on this subject for me?
I'm designing a member that is supporting vertical load. The member is to consist of 2 steel beams, one placed directly on top of the other.
I want to design them to act compositely and therefore I want to use bolts to fix the top flange of the lower beam to the bottom flange of the upper beam.
I understand that it is the horizontal shear I need to calculate in order to calculate the shear on the bolts, but I don't know how to calculate this horizontal shear.
Can anyone shed some light on this subject for me?






RE: Horizontal Shear
RE: Horizontal Shear
DaveAtkins
RE: Horizontal Shear
RE: Horizontal Shear
RE: Horizontal Shear
RE: Horizontal Shear
If the clamping force of the bolts is sufficient to maintain full contact, the composite action will occur. I suspect, but haven't tried to prove it, that if you space fasteners such that no differential flange bending occurs, that will take care of any horizontal shear.
RE: Horizontal Shear
RE: Horizontal Shear
RE: Horizontal Shear
So is the following correct for bolts and welds?:
Horz shear flow (LRFD) = A*Fy
Horz shear flow (ASD 13th) = A*Fy
Horz shear flow (ASD 9th) = VQ/I
Can someone point me to where shear flow = A*Fy is specified in the 13th edition?
- Thanks
RE: Horizontal Shear
It's analogous to a composite steel beam.