Corroded Steel Column With Hole Repair Method

[Mark Michael]

Hello All,

Just needed any recommendations as to how this can be repaired without needing to replace a portion of this bottom part of the column (like a splice and plated connection). I have attached an image of this here.

Are there any remedial methods that can be done before having to resort to replacement of this bottom part?

Thank you.

 

[dik]

You could reinforce the bottom 1.5' (maybe 2' or whatever) with something like this. Weld the plates to the flange and the base plate and then weld the other two plates across the toes of the new plates and to the base plate. You can fill the space in the web with 'sackcrete' to prevent it from filling with debris.

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik

 

[dik]

or

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik

 

[Mark Michael]

Hi dik,

Thank you for contributing a top-plan view approach of using the steel plates and sackcrete.

If let's say I would weld the steel plates on the web instead on each side (instead of the flange, there doesn't seem to be any holes at these sides), would that be sufficient enough to restore the integrity of the steel column?

 

[dik]

Yup... just a matter of doing the 'sums'... and done.

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik

 

[SWComposites]

The flanges appear to be degraded also; check thicknesses, widths after cleaning up the rust, etc.
Then run a full set of calcs.
And maybe better to reinforce web AND flanges just to be conservative.

 

[la belle vie]

You will need to remove the concrete curb. Repair plates should bear on the base plate. You may need ships to get around the existing welds.

 

[SlideRuleEra]

Mark Michael - Is the repair intended to be permanent (many years) or temporary (months, until proper replacement can take place)?

 

[ChorasDen]

Mark, what is your relationship to this request? Are you the general contractor, the project owner, a consultant engineer, a trade, or something else?

 

[canwesteng]

I wouldn't bother running any calcs - clean the column and install the plates to restore column section. The cost of the calcs is greater than the cost of reinforcing, and the client is much better served with the latter.