Simple Model for Lateral Stability Investigation

[Anonymous]

Hi,

I am investigating the torsional response of a building due to lateral loading. I have made a model that adresses Horizontal Loading Only (!) which includes the concrete core elements and rigid diaphragms. My intent was to put cladding on the edges, apply the wind simlulator and see how the structure reacts, however I am having trouble getting my cladding to work. I have attached a copy of the model that has two loading cases: 1. line loads on the slab edge and 2. cladding elements with uniform pressure. Load case 1 seems to be working well but load case 1 is not. This implies that I am not using my cladding elements correctly. Can you help address this?Perhaps this model is too simplistic for Robot? 

Thanks,

JB

Access Model Here: https://www.dropbox.com/s/z6uua4de8pe81gc/Simple%20Model%20for%20Lateral%20Stability%20Investigation...

[Rafal.Gaweda]

Claddings transfer load to bars, nodes and edges of MESHED panels - not diaphragms.
http://help.autodesk.com/view/RSAPRO/2015/ENU/?guid=GUID-2F6BADFE-F90B-46AA-97F8-227926DB9A7C

[Anonymous]

Thanks for clarifying Rafal. I thought the one direction cladding elements just divided the pressure into the appropriate line loads. We were attempting to avoid too many mesh elements to reduce the amount of time it took to run our model, at least initially. Would you suggest another method, other than a coarse mesh?

Regards,

JB

[Rafal.Gaweda]

I thought the one direction cladding elements just divided the pressure into the appropriate line loads.

Of course it is like that, but internally this generated load is a trapezoidal type load and such load type does not exist for panels.

Would you suggest another method, other than a coarse mesh?

Coarse mesh and claddings or linear egde loads on diaphragms edges without claddings

[Anonymous]

Good to know. The linear edge loads cannot be created by the wind simulator, as far as know, so I guess coarse mesh is our only option. Thanks the helping with this Rafal.

Cheers,

Jeff