What is the maximum load of an odd shaped beam with a hollow u shaped fitting?

[6.28318531]

Homework Statement

This isn't homework, but I thought I would post it here as maybe more people would see it, and as I am not an engineer, it requires someone with more experience. The section is effectively an I beam with a hollow u shaped fitting along the top (see my rough sketch). I just need to know how to work out the maximum load at the end of the structure, as if it was cantilevered. I have Z, and dimensions of the materials.

Homework Equations

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The Attempt at a Solution

I probably have to calculate the moment of inertia, would it be somewhere towards the top of the "I" beam?

 

[SteamKing]

As long as the U-fitting is small and I think it is oriented across the top of the beam, you would ignore it in trying to determine the maximum load on the beam.

If the U-fitting is intended to apply the load to the beam, that is another factor in determining how much load can be applied.

 

[6.28318531]

Sorry about the diagram its meant to be as though you were looking at the I. The u fitting runs the length of the beam, and it as at least as wide as the beam. I wouldn't think it was of negligible size. It isn't intended to apply load to the top of the I beam.