I was at another site the other day and we had a discussion as to how to reinforce a beam, Barjoist or a tube that is laying in the horizontal position being used as a beam.

The load being a verticle load pushing straight down from the top or being pulled straight down from the bottom.

Wheather the load is a point load or a uniform load.

My question is on an I shape or box shape what is the best way to reinforce this member.

On a beam is it stronger to add steel to the top and bottom flange or is it stronger to add a plate of steel to the webb part of the beam.

Or if the member was a box tube, is it stronger to plate the top and bottom flange or to plate the sides of the tube calling that part the webb.