Learning Forum

[Adeleine Cabrera]

Hi. I have modeled a reinforced concrete beam to column connection. After analyzing the total deformation on Transient Structural, the stirrups inside the concrete looked like this.

 

The stirrups are set to LINK type while the concrete is just solid. I already made the whole structure to have a shared topology.

I'm trying to analyze but, this error stopped the analysis:

"The value of UZ at node 4111 is 3.855907948E+09.  It is greater than   
 the current limit of 1000000 (which can be reset on the NCNV command). 
  This generally indicates rigid body motion as a result of an          
 unconstrained model.  Verify that your model is properly constrained."

This node is found on the stirrups. So the problem lies on the stirrups. I have already followed video tutorials but, they seem not to work. 

The stirrups initially looks like this and should move with the concrete and longitudinal:

I tried to analyze again and the stirrups are still not moving:

Kindly help me with this. Thank you.

[Erik Kostson]

Hi

Use reinforcement instead of link as shown below (also in the future post mechanical questions  in the mechanical forum )

Also the solid 3D mesh does not look very good - think it is possible to get a structured mesh there.

All the best

Erik

[Adeleine Cabrera]

Hi. Sorry, I thought the probem is because of the 3d model.

Does using Reinforcement model type allows the use of element LINK180? I need the stirrups and steels to have this element.

Thank you!