I'm looking to build a pipe truss to support the front of a basic farm shed. Clear span 9m or 30'.
I've built a few of these over the years. Basic principle is two lengths of pipe and a heap of 1/2" steel rod. Cut rod into 900mm lengths and bend each length in the middle at 90 degrees to form an "L". Position pipes about a foot apart and then weld the "L's" in a zigzag between the pipes to form a basic truss. I've never had one fail but then I might just have been lucky! Either that or I've over designed them.
This time I'd like to do it properly. Can anyone help with directing me to somewhere where I can get some ideas on designing this truss correctly. My skills lie in other directions (gas), so I'm not too excited about going back to first principles and trying to work out all the loads. A simple truss ain't so simple when you do that! There must be some broad principles or calculations that can be applied to this sort of problem
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An engineer is a man who can do for five bob what any bloody fool can do for a quid (Neville Shute)

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