Yes I agree, my terminology is not as good as it could be. I am more of a hands on person and this is all a bit technical for me, but I'm learning!
Yes, it's the flex when the poles are put under tension. And the stiffness, I guess that is what I need to increase to reduce this flex...?
They're insured by the company I'm constructing for. Also covered by my public liability insurance.
Going a bit off topic though,
Any advice on tube diameters etc?
by flex I mean a slight bow in the full length of the pole if the tarps are over tightened, or hoisted too high. The wind loading is 65mph. The pole construction varies from company to company, steel is one option, wood another, aluminium also. We have used aluminum because of the weight reduction.
Marquee poles, or big top poles. Tent canopy pole.
I've attached an image of the poles as they're set up, ready for the tarp. They're anchored with guy lines to the top of the pole, and we use a winch to hoist the tarps up the poles.
Hope this is better information.
I'm planning on making marquee poles out of aluminium tube. I did so last year and they worked well, but they flexed slightly under tension.
To correct this flex, I want to use slightly different size of aluminum tube.
I used 4" tube, with a ¼" wall, at a length of 30'.
Will the tube be...