I ran this through Kiwi3D but was having extensive problems with getting the plugin to work with complex forms. I ran a basic physics simulation through Kangaroo but I want better results with more visual cues of where the stress is greatest. I am aware of Karamba3D but after hitting a roadblock with Kiwi I am not hopeful that the plugin will be able to handle the analysis, I would attempt it if anyone has had experience with the plugin and can guarantee that the pllugin is capable of doing the analysis.
That is a very odd bridge. You seem to have an arch structure of some signfiance supported with cable stay elements. Your anchorage forces will likely be very large if that is a real world problem.
In practice, elements like these are rarely designed as solids. The length to width ratios are terrible. You will spend endless amounts of computing time to generate an output that is no more valuable than what a skilled practicioner will simplify the problem to. The main problem is meshing solids. Trying to mesh some of those shapes will lead to terrible mesh geometry unless you are using software like Abaqus, ANSYS, Diana or something along those lines that have mesh tools to deal with these shapes. Even with one of those you will need to look very carefully at your geometry definitions to get it to work well. Most of the time we break the segments into lengths and use an equivalent shape that is more practical for analysis. Grasshopper is ideal to create those shapes.
It is common to look at small areas as solids when the problem warrants the effort.
Good luck. I assumed you were trying to model solids. I hope you are leverageing grasshopper to extract the correct shapes along the length of the curves.
