Gusset Plate Stiffener Design
Gusset Plate Stiffener Design
(OP)
Hi, I have a question regarding the calculation for the required thickness of the gusset plate when is used for stiffening the bending of the steel angle. (See attached drawing) Without the gusset plate, the moment resistant of the steel angle is insufficient to resist the moment created by the eccentrically applied load at the tip of the angle flange, therefore we sometimes introduce the gusset steel plate in perpendicular direction between the two legs of the steel angle. I use the section modulus of the gusset plate (thickness and depth of gusset plate) to determine the min. thickness of gusset plate required, but I'm not confidence if I'm doing right.
Can anyone provide me feedback on how to check the required thickness of the gusset plate?
Thank you
Can anyone provide me feedback on how to check the required thickness of the gusset plate?
Thank you






RE: Gusset Plate Stiffener Design
RE: Gusset Plate Stiffener Design
RE: Gusset Plate Stiffener Design
RE: Gusset Plate Stiffener Design
RE: Gusset Plate Stiffener Design
RE: Gusset Plate Stiffener Design
RE: Gusset Plate Stiffener Design
RE: Gusset Plate Stiffener Design
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: Gusset Plate Stiffener Design
One of the things I’d watch out for on the detail you show, is the way the angle is welded to the WF. In either detail, your load on the angle leg tip induces a significant prying/tension/uplift load on the weld terminations right near the heel of the angle. These weld terminations are problematic under any load condition, they are the weak spot in the weld. Then you are applying a concentrated prying load on them. They can unzip pretty easily under those combined stress conditions and be a crack starting point. You might do well to run a 3" long weld across the beam flange and to the 4" angle heel.
RE: Gusset Plate Stiffener Design
Dik