I am tying myself up in knots with this one. I have a system like the picture to assess. There are a variety of geometric configurations so i was planning to plug it all into a spreadsheet, but I am not happy that I am programming it right. So, I modelled one scenario and I cannot mirror the results by hand. Nodes 1-3 is 1.57m, 3-4 is 1.83m and 3-4 vertical is 2m. The rotated roller at 4 represents a slope, so it will provide a restraint but would slip down the slope on its own - member 2 is there to stop this happening.
I can't help feel i'm making a meal of this, but something is wrong somewhere!
I can't help feel i'm making a meal of this, but something is wrong somewhere!