I am working on a 4 storey multifamily wood frame building and have to put some steel columns from transfer slab elevation up to the roof to pick up some heavily loaded steel roof beams (Pf ~ 250 kips). The project is on a ski hill with roof snow load of 300 psf. The problem we have is that the shrinkage of the wood frame will cause the steel columns to "poke" thru the roof. While we don't expect any structural damage, there will be an issue with the drywall on the top floor directly adjacent to the column. Each floor level will have 4 plates for a total of 16 plates, so we can expect about 1 1/2" of shrinkage by the time we hit the 4th floor. I do not plan to connect any wood frame elements to the steel columns on each floor. Does anybody have any details that we could try to minimize this damage?
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