"Jim Wilkins" wrote in message ...


The problem is designing a tension-side joint that gives the full strength
of the channel without blocking the trolley.

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Am I correct in assuming that thickening the outside of the channel flange
with a welded-on shim to restore the area lost to bolt holes and sizing the
joining plate to at least that same net cross-sectional area is enough?

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This is similar to a filler plate in a splice between beams of different
heights. Are filler plates ever welded to the smaller beam?