Post Installed Anchors to Circular Concrete Column

[bookowski]

I've got a condition where I need to connect a new steel beam to an existing 24" circular column. Beam rxns are about 30k ultimate. This is a renovation. The original building drawings showed 22" sq. 7ksi columns and we had designed plates with post installed anchors to support the new beam. But after demo we've found that the two columns are 24" round. I'm not seeing a simple way to make a connection anymore for this magn of load. I can add full height steel posts in front of the concrete as a last resort but it'll be a change from what we had designed so I'm trying to vet my options. Anyone have ideas?

 

[TLHS]

Here's one thread about it. I'm pretty sure we've had more though because I seem to remember posting about the idea of curving some angles to go full circumference as part of a conceptual system.

https://www.eng-tips.com/viewthread.cfm?qid=458335

 

[hokie66]

If the post installed anchor and end plate connection works with a square column, there is no reason it won't work with a round column. You just need to shape the plate to fit.

Edit: On second thought, and after reading the earlier thread, the beam is between two circular columns, so constructability is the issue rather than strictly capacity.

 

[bookowski]

I looked at that old thread and I'm going to add a steel column, probably sim to the channel detail that kootk had. That was my inclination but it's a last minute change so I was beating it to death before switching. Thanks for sharing that thread.