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-   -   Lally column removal (http://www.diychatroom.com/f19/lally-column-removal-23089/)

Joe F 07-02-2008 03:36 PM

Lally column removal
 
Just to assure everyone in advance, an engineer has looked at this and spec'd it out.

I am removing a column and adding one to a location that will be within a wall (out of the center of the room).

So, my question is, once the new column is in place, what's the best way to cut out the old one? I know the outside is steel, but the core is concrete, correct? Sawzall, grinder?

buletbob 07-02-2008 04:08 PM

I would get a cold chisel and chip away the concrete from around the base of the Lolly columns only because when they floated the floor more then likely its somewhat high around the base. You don't need much. Then get a disc grinder with a carborundum blade and score all around the base, you only have to get into the column about 1/4-5/16 of an inch. then Wac the top with a sledge hammer and the concrete will crack at the score cut. then remove.
Good Luck BOB.

Termite 07-02-2008 04:29 PM

The concrete must be a regional thing. I've never seen one with concrete in it.

Your new column's location has a footing under the floor slab, right???

buletbob 07-02-2008 05:30 PM

Quote:

Originally Posted by thekctermite (Post 135447)
The concrete must be a regional thing. I've never seen one with concrete in it.

Your new column's location has a footing under the floor slab, right???

Here in the north east It is not uncommon to have the columns filled.
on reason when the footings are poured with the foundation and the house is constructed we will order Lolly's at a certain height for each footing. We then install them and then the concrete floor is poured around them so the base is down the 3-4" locking them in. the filled column is for the extra support and it is not uncommon to have them rot at the floor and column level. all my structural columns are always filled . I personally don't like the standard zip columns, I refuse to use them.
I hope this helps . BOB

concretemasonry 07-02-2008 05:39 PM

Is the column sitting at the loacation of the previuos column or is it just sitting in an unknown slab that working fine with no load on it?

Joe F 07-02-2008 07:17 PM

Thanks for all the replies.

For the new column, I have to bust thru the slab and dig a footing. Obviously, I'll do that first and get the new column up, then remove the old one.

Termite 07-02-2008 11:36 PM

Quote:

Originally Posted by buletbob (Post 135462)
Here in the north east It is not uncommon to have the columns filled.
on reason when the footings are poured with the foundation and the house is constructed we will order Lolly's at a certain height for each footing. We then install them and then the concrete floor is poured around them so the base is down the 3-4" locking them in. the filled column is for the extra support and it is not uncommon to have them rot at the floor and column level. all my structural columns are always filled . I personally don't like the standard zip columns, I refuse to use them.
I hope this helps . BOB

Thanks Bob. Just goes to show that things are done very differently in different parts of the country!

buletbob 07-03-2008 06:25 PM

Your quite welcome, This is a great forum. BOB


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