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Punching Shear on Steel

Punching Shear on Steel

Punching Shear on Steel

(OP)
Hello:

  I have an existing steel truss that I am analyzing.  The webs and chords comprise of round HSS.  The walls of the chord are relatively thin so I would like to check the walls for punching shear.  How does one go about doing that?  Is there a techincal publication that would be able to assist?  

Thanks Again

RE: Punching Shear on Steel

Chapter K in AISC 360-05 deals with HSS connections.  I believe K2 has the information that you're looking for.  

There is also an HSS connection manual out there (it's not incorporated into AISC 360-05, but I don't believe the one in the 13th Ed. is as extensive) - I believe is't a black book with gray stripes.  

RE: Punching Shear on Steel

I am not aware of any examples using a round HSS.  AISC Design Guide 24 and the black HSS Connection Manual have design examples using square HSS.  These might give a conservative estimate.   

http://www.FerrellEngineering.com

RE: Punching Shear on Steel

There must be no knife plate connections if you are concerned with punching shear - just coped and welded pipe to pipe?  

Mike McCann
MMC Engineering

 

RE: Punching Shear on Steel

I googled "punching shear in circular hollow sections" and got a lot of useful hits, but I think the most comprehensive information available is the CIDECT literature.

RE: Punching Shear on Steel

There is another publication which I have occasionally mentioned in these forums and that is "theory and design-tubular steel structures" by Troitsky and available from the JF Lincoln Arc Welding Foundation.  The 2nd edition that I have will have punching shear formulae for circular and rectangular tubings in Appendix A dealing with the AWS structural Welding Code D1.1 Rev 1-81.
 

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