Core non consistent results

[benjamin2013]

Hello,

I am having trouble with core results in Robot: it gives me diverging results when there is a significant change in the lateral stiffness (change in width of the building, base of the core, etc...).

To check the core results, I made a very simple model: a rectangular core, with a flawless meshing, simple levels, and I applied only lateral loads (2 cases: point load on the center of the slabs, or surface load on the walls; each case is equivalent to a 100kN-lateral loading per level, except on the top level).

In both loading, the core results are not consistent, espescially at base level:

Where does this come from? Is there something wrong in my model?

Thank you for your help,

Benjamin

[Artur.Kosakowski]

This is caused by the precision of panel cuts through the panels (precision of distribution of forces 'across' surface elements governed by their shape function).

[Artur.Kosakowski]

Hi @benjamin2013

The diagram with the values taken from the centers of the elements as it is displayed in RSA 2018.

 

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[mustafahesenow]

1

[Artur.Kosakowski · Accepted solution]

Hi,

The change of the display of the core walls diagrams as discussed in the topic indicated in the above post has been introduced in HF1 for RSA 2019.