Splicing Channel Beam
Splicing Channel Beam
(OP)
I have an RFI from a contractor saying he can't get a 16' C10x30 beam into place without cutting it in half and splicing it together. For various reasons, I don't believe welding is an option where this beam is, and the contractor wants to splice the beams with bolts and a single plate. A good bit of Googling found pretty much nothing. Am I correct in believing this is not an option, because there is no way to transfer the moment across the splice without including the top and bottom flanges in the splice? There is only 3" of flange, so I don't see any way to avoid having to weld if splicing is the only way to install the beam.
What does everyone else think?
Thanks.
What does everyone else think?
Thanks.






RE: Splicing Channel Beam
Any chance there's enough extra length on the channel to arrange the two segments back to back with a 3 x d ish lap?
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Splicing Channel Beam
RE: Splicing Channel Beam
If the channel has simple supports and there is, say a uniform distributed load or a point load on the channel... forget it. A few minutes drawing the diagrams will allow you to make an informed decision. A properly supported plate on edge (bolted to a channel, for example) can resist moment, otherwise a "flitch beam" would not work, However, you are correct that compared to a C10x30 a reasonable size plate won't be of much value for moment.
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RE: Splicing Channel Beam