Problem from a non-suspended slab supported on ground

[Anonymous]

Hi Artur,

I try another way to simulate a 15m x 12m non-suspended RC slab on the ground.  When the nodes within the slab are assigned with Kz for soil elasticity, an error message was notice - no convergence of non linear problem (please see attached snip).

Can you please go through my file and identify why the errors occurred?

Thanks & regards,

Theophilus

[Krzysztof_Wasik]

Hi @Anonymous 

Activate "Matrix update for each iteration" for all load cases (Nonlinear analysis parameters).

Refer to this article

[Anonymous]

Hi @Krzysztof_Wasik ,

I have tried the ways from the recommended page as suggested you.  However, it does not work.    Can you please have a look on my model and suggest relevant improvements to the model?

The intention of the model is to simulate the behavior of the cast-on-ground RC slab under static and moving loads.

Thanks & regards,

Theophilus

[Krzysztof_Wasik · Accepted solution]

Hi @Anonymous 

I have checked your file (last attached version). For cases 1 and 2 (active cases). Matrix update after each iteration is not checked. So it seems that you have not applied suggested solution.

 

When I will check this option on model converges.

[Anonymous]

Hi @Krzysztof_Wasik ,

Thanks for the advice.