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A flitch plate beam is made of wood and steel. Is that what you want?
That will add very little strength to the beam.
You will have to reinforce the beam, either with plates welded to the top and bottom flanges (not inside the web), or a WT welded to the bottom. I can design this reinforcement, including the welding requirements, and provide a recommended procedure to install it without shoring, as an additional service, if you're interested.
I'm not sure what you mean by stacking, but these would be welded. A WT is a T shaped piece.
No. Welding to the sides will not do enough. You need to add material to the top and bottom flanges.
Yes, but welding them can be problematic
They will be smaller than the WF. That is not going to do it
Hello. Do you have any other questions for me on this topic? If you could rate my answer, I would appreciate it.