How to incorporate rigid links correctly?

[MykolasM]

Good evening everyone!  I'm trying to creat simple  beam model ( for simplicity's sake) which has been partly modelled using shell elements in the middle of  span and partly using a beam  elements (bars).  My question is, how correcty to incorporate rigid links between shell and bars? 

I'm attacing a picture  of model with similar concept and my own model, which does't work..

[Artur.Kosakowski]

You should include all nodes of the shells being in the planes of bar ends.

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