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Absoluute
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Hi,
I'm planning to build a climbing wall outside my house, attached to a concrete wall.
The climbing wall would be 3 sheets of 18mm plywood (each about 30kgs) - each 2.5m x 1.22m (8ft x 4ft). With the boards set out 2.5m wide and stacked 3 high to give a max height of 3.66m (12ft).
I want the wall to be adjustable, to pivot out to be able to climb overhangs. Fixing the top to the wall with chains.
I'm thinking of creating a steel frame to fix the boards to, someone suggested using 50mmx50mmx3mm steel box. But I'd like to calculate the loads and work out the best dimension of steel.
The simplest design would be 2 uprights and 4 cross-beams to fasten the boards to.
How do I calculate the forces on the steel if the wall is leaning outwards, probably 20 or 30 degrees ?
Maybe I'd need a third upright in the middle, to give it vertical rigidity ?
Any help much appreciated, I've not done any of this mech eng before. I did a Physics degree many moons ago, and never found it much us in everyday life!
Cheers,
Adam
I'm planning to build a climbing wall outside my house, attached to a concrete wall.
The climbing wall would be 3 sheets of 18mm plywood (each about 30kgs) - each 2.5m x 1.22m (8ft x 4ft). With the boards set out 2.5m wide and stacked 3 high to give a max height of 3.66m (12ft).
I want the wall to be adjustable, to pivot out to be able to climb overhangs. Fixing the top to the wall with chains.
I'm thinking of creating a steel frame to fix the boards to, someone suggested using 50mmx50mmx3mm steel box. But I'd like to calculate the loads and work out the best dimension of steel.
The simplest design would be 2 uprights and 4 cross-beams to fasten the boards to.
How do I calculate the forces on the steel if the wall is leaning outwards, probably 20 or 30 degrees ?
Maybe I'd need a third upright in the middle, to give it vertical rigidity ?
Any help much appreciated, I've not done any of this mech eng before. I did a Physics degree many moons ago, and never found it much us in everyday life!
Cheers,
Adam