Determining Fb for Aluminum shapes
Determining Fb for Aluminum shapes
(OP)
I'm trying to find out whether using Chapter F of the ASD Steel Construction Manual to determine Fb and Fv for aluminum is acceptable or not. Thanks for the help
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Determining Fb for Aluminum shapes
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RE: Determining Fb for Aluminum shapes
Aluminum has its own design manual. Additionally, beware of welding with aluminum as it lowers the allowable Fb significantly (at least in the region of the weld).
RE: Determining Fb for Aluminum shapes
They have their own specifications titled Specification for Aluminum Structures and Aluminum Standards and Data.
RE: Determining Fb for Aluminum shapes
Also - aluminum has a lower E so deflections are a bit higher.
RE: Determining Fb for Aluminum shapes
RE: Determining Fb for Aluminum shapes
This doesn't have to be real precise (ie....this is not a commercial structure, and it's for components and cladding) so is using .4Fy or .5Fy a reasonable guesstimate for determining Fb?
Maybe I shouldn't worry about stresses as ultimately, deflections are going to govern........and I understand that the E is much less than steel so deflections are much higher.
Thanks again.
RE: Determining Fb for Aluminum shapes
RE: Determining Fb for Aluminum shapes
RE: Determining Fb for Aluminum shapes
RE: Determining Fb for Aluminum shapes
I believe the publications are produced by the Aluminum Association, Inc.
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Mike McCann
McCann Engineering