Will the joint affect the analysis in this case?

[JohnWoo1999]

I don't know why there some joint on the beam and i cannot delete them. How can i delete the joint on that beam.
Also, how can i combine those wall? I think they may be divided by grid line.
Thanks a lot

 

[Trenno]

look at the joint properties (right click it). There must be something assigned to it, like a load or it's connected to a shell/frame.

You can merge shells within the 'edit' tab.

 

[JoshPlumSE]

Looks like it could be a grid location than a joint / node. If so, it wouldn't affect the analysis.