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Thread: Shade sail anchor??
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28th September 2024, 09:04 AM #1Intermediate Member
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Shade sail anchor??
On my portal frame steel shed.
I already have a stainless steel eyebolt mounted on the shed but it goes through the main C-section upright of the portal frame.
But where I need to put this anchor there is no upright only the smaller horizontal C-section that the external sheeting screws to.
While I am confident in the strength of the first attachment shown in the pictures I'm not sure that the same 12mm eyebolt would be strong enough if just set in the horizontal stringer.
Any suggestions on easy ways to strengthen the attachment?
More pix if needed.
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28th September 2024, 09:25 AM #2Intermediate Member
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As far as I can remember from the build; the only thing holding the horizontal stringer to the shed frame are 2 * 6mm Tek screws at each side into the flange of the uprights and I'm not confident that the holding power of the combined 8 Tek screws [ plus the further 8 to the diagonals at the sides ] would be enough to hold a big shade sail if we get a large gust of wind like last weeks that ripped a couple of the older shade sails I had up in the front shading the West face of the house. I am assuming the the anchor would be a point load
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28th September 2024, 10:14 AM #3Intermediate Member
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Or should I call the horizontal steel member a girt?
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28th September 2024, 11:22 AM #4
what is to stop you putting the 2nd anchor on the other vertical member?
ok, I guess your sail won't reach there?
but a longer chain?
or run a wire/chain between the 2 anchors and then run another wire from that to the sail?
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28th September 2024, 11:33 AM #5
You could add a bolt to that other intersection which will tie the horizontl c-purlin to the upright, just like the eyebolt is now doing on the other intersection. If you're worried about the purlin deforming from a load in the centre you could screw another c-purlin to it and take the eyebolt through both, but the gauge of your purlins looks pretty heavy in the photo so may not be needed.
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28th September 2024, 12:21 PM #6Intermediate Member
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