Free Edge Buckling of a Gusset Plate
Free Edge Buckling of a Gusset Plate
(OP)
I was wondering if anyone has any good references or design examples for checking or stiffening the free edge of a gusset plate for buckling?
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Free Edge Buckling of a Gusset Plate
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RE: Free Edge Buckling of a Gusset Plate
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RE: Free Edge Buckling of a Gusset Plate
One approach I've used in the past for triangular gussets is to treat strips of the gusset as columns and calculate allowable compressive strength of each strip. Then sum total allowable load or moment of the gusset. Don't know how that compares to the referenced document.
RE: Free Edge Buckling of a Gusset Plate
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RE: Free Edge Buckling of a Gusset Plate
RE: Free Edge Buckling of a Gusset Plate
RE: Free Edge Buckling of a Gusset Plate
I have used 2 approaches for stiffening the free edge:
Add a stiffening angle on the lower edge of the gusset
or
Use a single vertical stiffeners from the top flange of the beam down to the bottom of the gusset to cut the length of the free edge in half.
RE: Free Edge Buckling of a Gusset Plate
Note that the edge stiffener can't continue across your hinge line, if you're detailing for seismic.
The AISC seismic design manual has some information on this as well.