topic Re: Encountering problems with footfall analysis in Robot Structural Analysis Forum

Encountering problems with footfall analysis

Anonymous — Mon, 07 Mar 2016 12:09:55 GMT

I have recently exported a simple structure from Revit onto Robot in order to run footfall analysis on the buildings slabs. My university is currently in the process of updating the service package to rectify the youngs modulus and poissons ration erros. However, i need to know how to delete the releases for the columns and beams so as to rid the instability erros, but there are other errors that are aoppearing (please see attached image).

I would also like to know how i can export individual floors from my Revit structure, so as to input different walking frequencies for each, and running analysis on them seperately.

Any information on this matter would be greatly appreciated.

Thank you

Daniele (LSBU student writing a dissertation on human induced footfall vibrations)

Re: Encountering problems with footfall analysis

Rafacascudo — Mon, 07 Mar 2016 13:05:43 GMT

to delete releases inside robot goto menu Geometry/releases , choose "delete" , select the bars you do not want to have releases and click apply.

To export only part of Revit model , On Revit ,select what you want to export to Robot and on "send options" mark "send only current selection"

Re: Encountering problems with footfall analysis

Anonymous — Mon, 07 Mar 2016 15:20:51 GMT

Hi Rafacascudo

Thank you very much for your prompt reply. I have done everything I can think of to get rid of my error when running my analysis and I still cant get rid of the "incorrect value for young's modulus" error. Any thoughts?

Thanks

Daniele

Re: Encountering problems with footfall analysis

Rafacascudo — Mon, 07 Mar 2016 17:23:28 GMT

Maybe some weird material imported from Revit.
Check the assigned bars and panel materials , edit or replace them with native Robot equivalent materials.

Re: Encountering problems with footfall analysis

Artur.Kosakowski — Tue, 08 Mar 2016 08:16:20 GMT

The corerct definition of material properties in Revit has been discussed during the 10th Robot webinar whih recording is available from http://forums.autodesk.com/t5/robot-structural-analysis/robot-structural-analysis-webinars/td-p/5523337

If you find your post answered press the Accept as Solution button please. This will help other users to find solutions much faster. Thank you.