I am going to build an essentially freestanding wall adjoining our house. Structurally, it needs to be calculated as a 4-meter high fence. It will be about four meters long and I will place the posts at one-meter intervals.
Considering the height, the wall will be exposed to significant wind forces. I will use construction wood for the posts, and each post will consist of 3 or 4 beams measuring 140 x 45.
The problem is how these should be attached to the concrete foundation (which will be robustly dimensioned).
On the American market, there are heavy-duty brackets like those in the pictures, but I can't find any in Sweden.
Does anyone know or have any ideas on how the brackets should be constructed?
Thank you for your suggestions, but I'm not sure it will be strong enough. Calculate for four meters high and storm strength 😬. The option I have considered is 10 mm flat steel that goes up at least 500 mm on the post and equally far down into the concrete.
Thank you for your suggestions, but I'm not sure if it will be strong enough. Consider four meters high and storm strength 😬. The option I've considered myself is 10 mm flat steel that goes up at least 500 mm on the post and equally far down into the concrete.
If you have them made by a blacksmith, make sure to have them galvanized; otherwise, it won't last.
Is it completely windproof, or does it let some wind through? If it is completely windproof, I think you'll need other gear if you're going to build 4 meters high.
Without remembering much from the structural calculations from high school, you should be able to achieve higher strength by simply embedding hot-dip galvanized posts, to which you then attach wooden beams.
Otherwise, it would have to be a very strong fastening to withstand the wind load on a 4-meter high and x meters long fence.
Agree that you should let an engineer calculate it. It would be unfortunate if the fence bends and someone gets injured by the falling fence.
These usually hold up quite well. Attach on all 4 sides so it stays securely, but 4 meters is high. You probably need to consider making it permeable to wind, otherwise nothing will withstand that wind load. The concrete must also be sized for the loads it is subjected to.
I am considering this myself. A 1000 mm long UNP100 on each side of every post. 500 mm down into the concrete foundation and 500 mm up along the post. It should be enough, one might think.
Assumes that the concrete foundation is large enough as well, because otherwise it will give way and the whole ground will shift. That becomes quite a lever with 4m
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