Increase thickness of base plate

[rteja]

I want to increase thickness of an existing base plate of a steel post with a signboard. Welding an additional plate to the existing base plate is not an option because welding is not permitted on-site.
Instead can i bolt this additional plate? What other options do i have?
The existing base plate is failing in bending.

 

[CANPRO]

It’s unlikey that you can do anything at the baseplate without welding. You might be able to brace the column higher up to reduce the load on the baseplate. A sketch of the structure and the foundation would help.

 

[Lomarandil]

Presuming you are able to remove the post to install this additional plate, can you remove it long enough to provide a better base plate (cut off and replace with thicker baseplate, double the plate with appropriate welding, add stiffeners, etc.) far enough "off-site", then replace? Doing that or just bringing in a new post & baseplate might be your best options.

What shape is your post? Round pipe?

Unless your base plate or supporting member are really unusual, I am having trouble imagining any bolted-only repair that helps a base plate in bending.

If you want to get really crazy, and can slide something down from the top of the post, maybe you could create a pre-fabricated sleeve with "stiffener" fins that bear on the base plate and disrupt the bending planes (bolted to the post body to keep it from sliding back up).



----
The name is a long story -- just call me Lo.

 

[dik]

I'm not a big fan of using gusset plates, but, this may be an option.

Dik

 

[IRstuff]

Please refrain from duplicate posting

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