Beam stress

Imagine a moderately long beam fixed at one end to a wall. Near the end of the beam, a very heavy weight is kept on top of the beam. At the same spot, two small beams are fixed under the main beam in a V shaped configuration such that the two beams form a sort of "press fit" i.e. they exert a substantial shear and compressive force on each other and on the main beam.

Will this configuration reduce the shear stress on the main beam?
 
Let me ask: is there any reason to think this configuration would not reduce the shear stress on the main beam?
 
I can think of none
 

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