Thanks everyone for taking time to respond! I agree that we should be looking at the current code in force if we will replace the entire door.
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Mitch
If I designed a hangar door for IBC 2006 -> ASCE 7-05 and I need to replace it where the current governing code is IBC 2018 -> ASCE7-16, am I allowed to replace in kind, or do I need to consider the current code in force? Would the answer change for a repair rather than a replacement?
Thanks...
check out canted coil springs. They are common in breakaway applications like gas pump hose connections. This company has helped me design breakaway connections for a few applications
https://www.balseal.com/spring/
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Mitch
consider the worst-case environment as well. Most metals become brittle in extreme cold, but aluminum actually strengthens.
https://www.shapesbyhydro.com/en/expert-thoughts/in-the-cold-aluminium-gets-stronger/
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Mitch
dauwerda, I'm fairly certain fit-up drove the full plate splices. frankly, I would rather eliminate the fit-up issues, but the weight reduction on 4 smaller splices would be a win if we can fixture correctly. something to consider when there's time.
271828, thank you for pointing out the bolt...
Klitor, that could be a good improvement idea to look at for the future. On each end of the assembled beam we need full plates to handle an arresting load from these devices that catch the beam in the event of a hoist failure. However, those splice areas really could be individual plates if we...
Thanks for the inputs.
dauwerda, this is really what I'm looking to do. I would specify a PJP groove weld on both sides to limit the plate from buckling and stressing the weld root.
SWComposites, that was the first fix I looked at. The issue with drilling out the holes is that I'll end up...
Hey JLNJ, thanks for the input.
yeah it's cyclic but no load reversal in the gravity direction. however, we do have load reversal in the wind plane.
we have a good set of calcs and a long history of neutrally sealing our chords, branches, and how we weld the beam.. So, i'm comfortable with...
Hi Dauwerda, I try to avoid field welding however in this case we shipped with mixed plate inventory. If I have them drill out to match I'll end up with a slot in the vertical direction. The splice plate is cored out in the center to reduce weight, so I don't have enough room to add new holes...
Hello, I need to provide a design to field weld a splice connection between 2 box truss beams that have plated ends. We normally bolt them together, however, the plate hole patterns aren't aligning. I'd like to weld the plates together and was hoping for some feedback on my plan. Any feedback...
