Erik Kostson
Ansys Employee
Hi
I suppose you use shared topology so te beams share nodes at their common vertex?
https://www.engr.mun.ca/~cdaley/5003/5003_ANSYS_3_18.pdf
If not use that or use the merge nodes to merge nodes at their common vertex.
https://www.youtube.com/watch?v=m7UVzKSXjWM
Finally one way to check that all is connected use a modal analysis and that will show any disconnected lines/beams/nodes.

All the best