Anchor for concrete footing
Anchor for concrete footing
(OP)
I have been asked to determine a way to repair or replace the anchors on a concrete footing supporting a steel frame for a coal car shaker. The existing anchors have broken at the top of the base plate due to corrosion. I have been told that the entire concrete footing will have to be replaced. I was also asked if drilled anchors for hardened concrete would be acceptable.
There are two anchors, both have broken and both are embedded in the concrete footing.
Is there a procedure for repairing anchors without replacing the entire concrete footing.
There are two anchors, both have broken and both are embedded in the concrete footing.
Is there a procedure for repairing anchors without replacing the entire concrete footing.






RE: Anchor for concrete footing
If the existing concrete is not sound enough for this procedure, a new foundation is probably in order anyway.
Best Wishes
RE: Anchor for concrete footing
1. Use stainless steel or HDG anchors on the new installation.
2. If you concrete is sound and cannot core drill the existing anchor, try to drill new hole and use adhesive (epoxy type anchors). They work great as well. You must evaluate your edge distances and anchor placement and what type of loads the AB is carrying (shear, tensile or combination).
Good luck
RE: Anchor for concrete footing
Thank you again.
RE: Anchor for concrete footing
Keep in mind, I do not have the full picture of what is all around the footing and potential interferences.
Good luck
RE: Anchor for concrete footing
RE: Anchor for concrete footing
RE: Anchor for concrete footing
I think you should look into it a little more. IAs SlideRuleEra stated, it might be a concrete pier not a footing.
Regardless, if the concrete and base plate are sound, you might want to try cleaning the base plate and welding bent plates or angles (with the vertical leg pointing down) and re-fasten the base to the pier/footing on its sides. When you layout the new bolts, be sure to chek that they don't cross or align to minimize interfence. I wouold use (2) bolts in each section of angle or bent plate.
Good luck
RE: Anchor for concrete footing
You are correct. I apoligize for the word mix. I am calling it a footing but the correct name is pier (14"x14") which is then attached to a footing 4-feet underground that is 6'x6'x15".
Again, I appreciate your responses.
RE: Anchor for concrete footing