Benefit to welding washer to baseplate?
Benefit to welding washer to baseplate?
(OP)
When anchoring a column baseplate to existing concrete, is there any benefit to welding the edges of a square washer to the baseplate?
Specifics:
1-1/2"Ø Anchor through 2-5/16"Ø holes in 1" baseplate
Square washer is 1/2"x3.5"x3.5" with a 1-9/16"Ø hole
While reviewing the drawing I haven't thought of a benefit to welding the washer to the baseplate.
Specifics:
1-1/2"Ø Anchor through 2-5/16"Ø holes in 1" baseplate
Square washer is 1/2"x3.5"x3.5" with a 1-9/16"Ø hole
While reviewing the drawing I haven't thought of a benefit to welding the washer to the baseplate.






RE: Benefit to welding washer to baseplate?
RE: Benefit to welding washer to baseplate?
RE: Benefit to welding washer to baseplate?
RE: Benefit to welding washer to baseplate?
RE: Benefit to welding washer to baseplate?
What size fillet weld for the 1/2 thick plate to the baseplate? What is the shear force expected, a 1/2 inch fillet seems much too heavy to be economical.
RE: Benefit to welding washer to baseplate?
Dave
Thaidavid
RE: Benefit to welding washer to baseplate?
RE: Benefit to welding washer to baseplate?
RE: Benefit to welding washer to baseplate?
On a small structure or when using post-installed anchors this would entirely be possible. However, on larger projects (multi-story buildings, etc.) the anchors are cast-in and neither the anchor bolt tolerances nor the structural steel tolerances will allow for standard bolt hole tolerances or even oversized bolt hole tolerances. Often you'll need tolerances beyond the oversized bolt hole for your anchor bolts to fit in the base plate.
Plus, it's almost always cheaper to weld washers than to fight with slightly misplaced anchor bolts or re-fabricate steel.
Professional Engineer (ME, NH, MA) Structural Engineer (IL)
American Concrete Industries
www.americanconcrete.com