Structural engineering question

Sep 23, 2007 14:37

I have a tent on order, canvas, 20' long by 12' wide. I need to make the bracings and support ( Read more... )

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Comments 4

magpieweaver September 24 2007, 03:11:50 UTC
Have you thought about making a sleeve for the joints out of a metal pipe to slip over the joint? Gives strength and prevents hinging. Then use pins through each end to hold it all together. Or reinforce notched joints with screw on braces.

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gem_handler September 24 2007, 16:54:04 UTC
I'm liking the sleeve and cotter-pin assembly idea now. The tent is from the canvaseer you saw out at White Hart, the Ridge Runner guy. He uses 2x4s for his ridge, but just one joint because he as a truck/trailer he can haul longer pieces in, so he has fewer joints. He has his mitered and bolted. He also uses 2x2s for his 7' supports. They're so many of them that the strength issue isn't an issue.

I will not countersink the bolts. I will use a f'ing LONG miter (around a foot for the diagonal) if I can't fit a socket. Hmm... Might just have to sock the ends at the vertical poles, and keep the miter idea for the middle.

Thanks for your ideas!

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shaddow September 24 2007, 23:11:18 UTC
I would suggest a tongue and groove over a mitered joint. Dovetail would be even better.
The sleeve option seems like it may want to move around too much. It'd have to be real tight. And might catch and hold water which will cause the wood to deteriorate quicker. Course I haven't seen how it's been done so all those issues may already be corrected.

/$.02

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earthgirl3 September 24 2007, 18:34:31 UTC
Contact Chris Arterburn and run ideas off him as as well. He has built many a structure.

Don't forget if the canvas has never been used it will shrink 1-2% in the first rain so make it fit loosely!

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