Moment connection with bolts in circulat pattern... 3

[ImagineerGr]

Hello everybody...

some help please...

I want to calculate a moment beam to beam connection (tubes actually) with bolts in a circular pattern...

Is there any software to do this?
Or is there any methodology for calculating this...?

Any help would be really really appreciated...!!

THANK YOU ALL...!

 

[nutte]

I believe there is a straight-forward hand calcualtion in print for this connection. Look in the black AISC HSS Connections Manual. I'm positive they have this connection for rectangular tubes, and I'm fairly certain they have it for round tubes.

 

[JoshPlumSE]

Two things from my company that might be helpful:

First:
Dan Horn (the original author for ERITower) put together a technical reference on this subject for the ERITower / RISATower program a number of years ago. This mostly covers base plates for monopole communications towers. But, it is the most comprehensive treatment of the topic that I have found.

If you're interested, it can be downloaded from the following URL:

http://www.risatech.com/downloads/risatower/Technical_Manual_1.pdf

Second:
The RISABase program does an automated FEM analysis of these types of baseplates. For those of you who are interested in this type of method, then this program could reduce the amount of time and energy you spend generating this type of a solution.

Josh

 

[jike]

Why can't you do it similar to the methodology used to calculate tension in anchor bolts for tanks or stacks? Check Structural Engineering Handbook by Gaylord & Gaylord.

 

[Stillerz]

Determining the bolt forces is rather straight forward, I do beleive.
I think what can be more difficult and less published is determining the plate stresses.