Friday, September 21, 2007

strengthening steel joists for shear

Hi,
 
I'm looking for some guidance on strengthening existing steel floor joists for shear and have a few questions.
 
For a wide flange beam, we'd typically add some shear stiffeners or gussets.  Is the same approach applicable for an open web steel joist?  Can i just add some angles to the web?
 
How about reinforcing at the bearing ends, can i just add a piece of hss 2.5 x 2.5 to either side of the joist seat?
 
I appreciate any comments you may have.
 
Thanks,
 
Alden