Home gym with steel pipes

[dkhansson]

Hello! I have a room that is 5x10m. It's intended to become a gym. If I bring in gym machines, the workout area won't be so usable for other activities. So I thought of the following:

-A bunch of 5m steel pipes forming a kind of cube.
-Nothing is fixed to the walls or ceiling.
-On the cross pipes, you can then hang punching bags, TRX straps, gymnastic rings, and such.
-Attaching the pipes to each other should be possible like when building scaffolding or connecting pipes?

Now I wonder how thick the pipes need to be to support a weight of 200kg in the middle of 5m? Are there such pipes?

In the picture is a similar "crosscage," but I want 5m long pipes.

 

[scorp1on]

There are construction pipes, what will likely be limited is the deformation. Do you have any requirements on maximum deformation?

 

[Violina]

You do get a bit of dimension increase when it's about a 5m length...

Will you attach the stand to the floor? If not, that also increases the necessary dimension...

Then how you plan to attach them together as well...

Is there an option for cross braces/another type of reinforcement?

 

[dkhansson]

There are construction pipes, what will probably be limited is the deformation. Do you have any requirement on maximum deformation?

Is deformation the same as how much it bends? It doesn't matter that much. But it should feel safe to hang on.

 

[dkhansson]

You'll definitely increase dimensions when it's a matter of 5m length..

Will you attach the frame to the floor? If not, it also increases the necessary dimension..

Also, how do you plan to fasten them together..

Is there a possibility for cross braces/other types of reinforcement?

I'm trying to figure this out in my head. The room's width is five meters, that's why I want to be able to go across the entire width without tripping. Screwing it to the floor isn't a problem.

 

[Violina]

I'm trying to wrap my head around this. The width of the room is five meters, which is why I want to be able to move across the entire width without tripping. Screwing it to the floor is not a problem.

Any possibility for a support leg in the middle?

It's not the static load when you're just hanging 200 kg that's the issue, but when you're training and doing various exercises, it also becomes a dynamic load...

Do you have the option to get something welded?

Edit: bolts in the floor help to distribute loads significantly better

 

[dkhansson]

No possibility of support legs in the middle? It's not the static load when you just hang 200 kg that's the issue, but when you train and do various exercises, it becomes a dynamic load as well... Do you have the option to get something welded? Edit: Bolts in the floor help to distribute loads much better

We can bolt into the floor as much as we like. But I also want the training participants to be able to play ping-pong, floorball, or dance if they want. So a thick pipe wouldn't be a problem. Money isn't an issue either since we are comparing it to purchasing a lot of gym machines.

 

[Violina]

we can bolt around the floor as much as we want. But I also want the training participants to be able to play ping-pong, floorball, or dance if they wish. So a thick pipe wouldn't be a problem. Money isn't either; we're comparing it to buying a lot of gym machines.

I would say that you need at least VKR 80*40*5 to avoid too much deflection..

Edit: preferably with angled braces in the corners

 

[dkhansson]

I would say that you need to go up to at least VKR 80*40*5 to not risk too much deflection..

Edit: preferably with angled braces in the corners

Are round tubes less durable compared to square profiles?

 

[Violina]

Are round tubes less durable compared to square profiles?

I would say they are stronger, but since you haven't revealed whether there will be welding or not, I recommend square tubes because they are easier to screw together

 

[dkhansson]

I would say they are stronger, but since you haven't revealed whether there will be welding or not, I recommend square tubing because they are easier to bolt together

Then I would have chosen square tubing. Being able to rebuild and add parts would indeed be a dream!

 

[Violina]

Then I would have chosen square tubes. Being able to rebuild and add parts would have been a dream!

You can easily connect square tubes with plates and screws, and they are also easy to drill and hang things on

 

[scorp1on]

I would say you need to go up to at least VKR 80*40*5 to avoid the risk of too much deflection..

Edit: preferably with diagonal braces in the corners

The deformation for a simply supported beam as you mentioned with a point load (characteristic value) in the middle leads to a deformation of 31 mm excluding self-weight.

 

[scorp1on]

With a VKR 120x60x4 S355J2H, there will be no problems with strength (including a dynamic amplification factor of 1.5) and the design values of the loads (the loads are amplified with a certain factor beyond the dynamic amplification factor).

Regarding deformations, I calculate it to be 17 mm (to compare e.g. with L/300) where I have considered the amplified load and self-weight but not the design values beyond that.

I have calculated on a 2D frame where I have assumed a non-moment-resistant connection in the floor (bolted).

 

[dkhansson]

With a VKR 120x60x4 S355J2H, there will be no problems with strength (including a calculation with a dynamic amplification factor of 1.5) as well as design values for the loads (the loads are amplified with a certain factor beyond the dynamic amplification factor).

Regarding the deformations, I get it to 17 mm (to compare, e.g., with L/300) as I have calculated with the amplified load and self-weight but not with design values beyond that.

I have calculated on a 2D frame where I assumed a non-moment stiff connection in the floor (bolted).

wow. Thanks!