Pipe load braces for flatcars (F scale)

I love the flanged pipes but wanted to carry multiples per car.

UPDATE 12-3-2019:

I didn't like the height of the bottom part so I changed it up.

https://cad.onshape.com/documents/5411000a72dfdc00d47a207b/w/1d4bff2ee3857530c8b4243a/e/3bb81e972175933c385f695f