How do I stabilize in the best way?

[Tovin]

I have built an outdoor gym that also serves as a swing set. It is stable as a gym, but it sways a bit sideways when acting as a swing set.
Suggestions on how to stabilize it in the simplest way?

The structure becomes unstable in the direction the arrows indicate.


I'm thinking either braces at the top as shown in blue in the picture below. Or braces at the bottom shown in green. Would any of these options work?


I have braces on one side, but thought they weren't needed on the other side since the structure is attached to the wall. But it wasn't enough for the swing.

 

[Oldboy]

Assuming it doesn't work with internal braces between the posts? Or at the top between the top rails?

Effective diagonal braces should go all the way up to the top rails, regardless of whether they are internal or external.

To stabilize the swing's moment, diagonal braces are needed between the posts (short ends), but they are also needed between the long top rails. If the steel braces are not rigidly attached to the beams, cross braces are also needed.

Then it is important that the post anchors are properly attached to the deck (beams under the deck boards) and that they are, in turn, securely attached to the foundations.

 

[Tovin]

Assuming it doesn't work with internal braces between the posts?
Or at the top between the rails?

Effective diagonal braces should go all the way up to the rails, whether they are internal or external.

To stabilize the swing's momentum, diagonal braces are needed between the posts (short ends), but it's also necessary between the long rails, and if the steel stays are not rigidly attached to the joists, cross braces are also needed.

Then it is important that the post irons are properly attached to the deck (the joists under the decking) and that they in turn are securely fastened in the concrete bases.

[image]

No, unfortunately no internal braces work. That's where the training will take place

 

[b8q]

It is the upper beam where the swing is attached that needs to be stabilized sideways. Against the wall it is probably already attached, so it is further out that it needs to be stabilized:

 

[myrstack]

Does the whole structure sway sideways, or is it the beam where the swing is attached that bends? A 45 wide beam is not very strong sideways regardless of how it's attached if that's where it wobbles. I have a swing set with swings attached to a 45 wide beam, which bends significantly when the children swing, despite stable attachment at both ends.

 

[FredrikR]

Maybe it could be worth trying to screw on a horizontal 45x95 on each standing stud, meaning the ones the bars for monkey bars are attached to.
Cc60 or similar.

 

[Tovin]

Yes, it might work. It doesn't negatively affect the gym part or the aesthetics either.

 

[Kallebo]

We have a similar stand that is completely freestanding. If many people swing at the same time, it swings well here too. We added diagonal braces that stabilize the upper part against the posts. That means a beam that goes across between the posts and then diagonal braces between the legs and this beam. Did wonders for our stand even though it doesn't become completely rigid. They don't take up any extra ground space, and since the stand is 2.6 meters high, no one can hit their head on the diagonal braces... see image