Kinetic Facade Modelling

Hello everyone. I am beginner in Grasshopper and rhino.
facade1.3dm (55.1 KB) (15.3 KB)

I have problem in modelling this kinetic facade. I don’t know how to bend the unit of the shading system and make its rotation around a pipe and control the count of the pipes. I made the model in another program to show you what I want. can any one help me solve these problems please. Thank you.