huangyhg

design of mitered beams
i have a condition where i need to use a reversed mitered steel beam and didn't know if there were any special design criteria or conditions i should take into account for that would be different from designing a normal steel beam.
what is a reversed mitered steel beam?
ba
the beam is shaped like a v so rather then the miter being at a high point it is at the low point of the roof.
i guess you would treat it like a single angle in flexure, bent around its weak principal axis. each leg of the beam would be subject to lateral buckling because they are in the compression zone.
ba
so as i read it, this is a rafter which goes continuously through a valley rather than over a ridge. you need to develop the flanges in the same way. one way is to use a vertical splice plate, weld both sides to the plate. or you could provide end plates on both pieces with a bolted connection.

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