Kangaroo

Hi

I am working on Geiger Dome Structure and I like to apply loads on it. But in pretension part, the length of the cables are different. So how can I find the fit amount of pretension on each cables? For example, one of them is 2 meter and the others are 3 and 4. On the other hand, there are a lot of cables in Geiger dome with different length.

Thank you.