weld plates, I beam bearing.
weld plates, I beam bearing.
(OP)
This is an issue I been fight with steel erectors for years. If the weld plate is not flat the beam wont set bearing on the plate. Some will have 100% on the weld and not the plate. This is the same with K joist. I like to see 100% bearing on beams and as much as possible with k joist. My question is, what does the structural engineer like to see on bearing?
master ICC inspector, AWS CWI






RE: weld plates, I beam bearing.
RE: weld plates, I beam bearing.
BA
RE: weld plates, I beam bearing.
master ICC inspector, AWS CWI
RE: weld plates, I beam bearing.
BA
RE: weld plates, I beam bearing.
In the world of precast, simply supported framing members rest on deformable bearing pads for just these reasons. And for serious loads, I'll do that too. I guess, for minor loads, there haven't been enough real world problems to warrant the extra attention.
I like to have a stiffener centred over the bearing plate if possible. I feel that it helps to steer the load to where I'm hoping it will end up. Of course, that still usually requires some considerable deformation in other parts of the joint.
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: weld plates, I beam bearing.
master ICC inspector, AWS CWI
RE: weld plates, I beam bearing.
Usually not. Is this a column rather than a beam? If so, the issue will be more critical. The connection may need to meet the finished to bear limitations of AISC.
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: weld plates, I beam bearing.
Normally all structural engineers check weld for tension shear and moment only .
If the weld has same capacity of the beam or column then no problem in bearing . But however if the weld is welded both sides it has same thickness of the flange and web i believe.
If the thickness of weld is equal to plate thickness no need to worry.
RE: weld plates, I beam bearing.
BA
RE: weld plates, I beam bearing.
RE: weld plates, I beam bearing.
BA
RE: weld plates, I beam bearing.
Your solution is "Shim as required".
The shim should be welded to the bearing plate or beam/k-joist. If the beam/k-joist and/or shim should be welded to the bearing plate and/or shim, then the fillet weld should have different weld legs (3/8"x5/8"?), but the weld throat should be as required per the design.
RE: weld plates, I beam bearing.
Best regards - Al