historic double shell lally column info 3

[structSU10]

anyone have info related to the notes below - mid 1950's construction:

 

[KootK]

If this were all that I had to go on, my guess would be:

1) Adjustable height columns with telescoping tubes.

2) H.W. = Heavy wall.

Obviously, if this is the case, it would be nice to see some detail with respect to how the assembly is to be constructed.

These would be some pretty serious adjustable columns if that is, indeed, what they are.

What are we holding up? What's the column height?

 

[structSU10]

These support just one level with a bay of 12'-6" x 13'-6". columns are about 11'-0" tall. Only about 35 kips currently. They sound quite stout for what I have but I don't know much about how they figured the capacity.

 

[KootK]

What is the supported framing? Wood? Concrete? I'm trying to ascertain whether or not this is a situation where column adjustability would be beneficial. Hunting for clues as it were...

 

[structSU10]

Steel beams with cast in placed concrete slab and encasement.

 

[KootK]

Maybe the inner is the structural column and the outer is some manner of fireproofing strategy? Any suggestions of grout etc between tubes?

 

[bones206]

Check out pages 22 and 23:

https://archive.org/details/lallycolumnsstru00lall/page/22/mode/2up

 

[hokie66]

Bones has it right. No adjustability. Just a concrete filled pipe column, with fireproof encasement. They were common in the 1960-80 time frame. Not anymore?

 

[structSU10]

Bones - exactly what I needed, really appreciate it!

 

[bones206]

No problem. That archive.org website has a lot of good historical stuff.