Threaded Pipe Connection - Axial Capacity & Moment Capacity

[JoelTXCive]

I have been asked to check the capacity of a tall pipe support for a 16" ductile steel pipe.

The factored axial load is ~2.7 kip.

The ends of the pipe are restrained so once in service there should be little to no moment passing through the connection. If the pipe ends are released, then a ~12.7 kip ft moment would be sent to the connection due to wind loading.

I am able to analyze the pipe capacity and also the steel baseplate & concrete anchorage (not shown), but I am unfamiliar with the threaded flange connections at the pipe end.

Does anyone know where/how I can find info on these threaded connections. (See below)

Thank you.

 

[bridgebuster]

Perhaps these may help, although not quite your situation:

This was posted here in 2002

Link

This is from Modern Steel Construction, September 2016, look for the article "Strength & Engagement"

Link

I have to look further through my files; may find something.

 

[oldestguy]

Try this link:

https://fieldfastener.com/2018/03/13/rules-of-thumb-for-thread-engagement/