I notice that when modelling a column chain extending into a RC basement wall that there is a singularity problem (high internal forces) in the panel at the boundary of the column and basement wall element at top of basement level and also (from a previous enquiry) that RSA does not recognize columns embedded in walls. My question is what would be the proper way to model such a scenario?
Exactly!! When modelled as you have shown in a seismic situation, abnormally high internal forces are recorded at the column wall interface in the panel
Thank you for the file but when trying to calculate it (both "out of the box" and after freezing all FE meshes) verification reports incoherent mesh error and analysis cannot be run.
It seems that the model is different than the model you calculated and observed anomalies of results.
The name of file suggests that it was opened in repair mode. This operation results in restoring default job preferences, so if job preferences of your calculated model were different than default ones then the model you sent me can have different job preferences than the original ones - for instance in relation to using kinematic constarints or iterative adjustment of FE meshes, ignoring verification errors, etc.
Ffor your calculated model with results can you use "Save as" with different file name and selecting as file type "ROBOT - without results (*.rtd)". Then please compress to ZIP. It will guarantee that when calculating this model I will receive the same behavior and results as yours.
Can you also mention in which location have you observed abnormal values of forces and for which components of internal forces was it observed?