My context: I would like to make a removable section, which I can remove or put back on at any time, and that I would place on a wooden beam like on the 3D model.
The perforated part is a climbing beam to work the fingers in suspension. The three floors are more or less deep.
On the other hand, to answer the question of the efforts because you say "" that I would put on a wooden beam. ""You just have to remember that you have two resumptions of effort. The first two efforts are made at the bottom and act in both compression and shear, while at the top it is only tearing.
So depending on the proposal of Contact_168 ;-) and the usual metal parts in wooden frames, you just have to worry about the beam on which you will fix your panel at the top. Because at the beginning of the stopover there is little effort at the top and much more when the climber is at the top.
Look at the drawing and tell me if I understood correctly how you fix everything. If your top beam is solid and you do like the tutorial 60 kg it's nothing at all, the slightest screw resists 50 k in tearing and much more in shear. On the other hand, if no one belays you from below, provide a mattress (like in Bleau for specialists) for the fall inherent in this sport ;-)
It will obviously depend on the materials used and the positioning of the fixing points (to be clear, how the different elements will be screwed together, that can be studied), but in terms of profile the right distribution of loads is essential, and the one I propose (which I have roughly modeled to illustrate) would be more efficient, Indeed.
With more details on the usable space around your beam, and the dimensions of the various fixed elements, if you can plant fixings or screw in it, ... In short, restrictions and permissions, we can conceive of it more concretely. And incidentally to do simulations.
Knowing the materials available to you and your options for machining them is also important. Let's say that you should avoid designing it with shapes that you could not reproduce and making it out of 5mm plywood.