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GL beam strengthening

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A client has installed a glue-lam beam of the incorrect size (too small).  The beam installed is a 6 ¾” x 12” GL.  It is early enough in the project to do a fix, but they don’t want to remove and replace.  I have sized an additional GL to be installed next to and bolted to the existing bm.  The new beam is 16 ½” deep.  The original beam is bearing on top of a masonry wall, therefore the new beam can’t bear on top of the wall due to the deeper section.  The original beam can take all the shear by itself, but just barely.  The new beam takes about 60% of the load. Bolting along the beam is designed to transfer that 60% across the joint.  If I cut the new beam off at the face of the wall can I provide bolting at the end of the new beam to transfer its 60% back into the 12” deep beam?  Or, am I missing something?

 

This would be the easiest installation, then I don’t have to design any hangers at the wall.

 

Thanks,

Joe

 

Joseph R. Grill, P.E. (Structural)

Shephard - Wesnitzer, Inc.

Civil Engineering and Surveying