problem with nodal support

[Anonymous]

Hi

I don't have access to the RX Ry RZ when trying to set support on the model (see picture attached). I susecpt this to be the cause of all the instabilities that I'm getting in the models I've tried.

I'm only a 1 week user of the program so I must have overlooked something but i just can't figure out what that is.

can someone please help me with this before the computer suffers irreversible damages 🙂 ?

Thanks and regards

stephane

[Artur.Kosakowski · Accepted solution]

Try to change a model type from 3D truss to 3D Frame (Geometry > Structure Type). 

If you find your post answered press the Accept as Solution button please. This will help other users to find solutions much faster. Thank you.

[Anonymous]

Artur

thanks you for your answer. this has solved all the problems of supports and instabilities!!!

this leads me to ask you, if possible, what the main differences are between a 3D frame and 3D truss? in the case of an electrical tower, woudl you classify it more into 3D Frame or 3D Truss?

thanks and regards

stephane

[Artur.Kosakowski]

For a truss model all connections among bars are pinned so I'd rather use a frame model for such structure having continuous side legs with truss (or end releases) bars as diagonals. 

If you find your post answered press the Accept as Solution button please. This will help other users to find solutions much faster. Thank you.