Do you need channels or can you get away with steel plates on each side? I've done flitch beams with wood "sandwiching" steel plates and vice-versa. Have not performed calcs for channel-wood beam combo so perhaps not much help then :(
I recently inspected the soffit of a concrete slab and pan joist floor (slab = 4.5", joists = 10"x16", 20.5" depth overall). The floor spans some 30' and supports a boiler weighing approx. 8000 lbs. The center of the boiler's length (6'x10.5') rests at approximately 1/3 span The original...
