Autodesk Robot Structural Analysis
Pevelor,
Just run the analysis. Then the error about no material will disappear if you do the verification again.
As far as meshing goes, the reason you get incoherent mesh is due to small (even tiny) variation in panel geometry (happens alot with revit export). See the image attached for panel 55. Its slightly off the line where the two panels on top meet. So it's better to try and get the geometry correct first.
Just choose some different mesh options until it looks like a nice clean mesh. You have to balance density of mesh with accuracy of results and calculation time.
You'll probably find if you just run the analysis and then do another verification you will get a warning about incoherent mesh and kinematic constraints. Try setting the mesh options in job preferences to iterative, rather than kinematic.
As far as chasing down and fixing errors, just go step at a time.
Support degrees of freedom are up to the engineer to choose based on anticipated real fixity conditions, no one can make that recommendation for you. 
Good luck,
Tony
Re: Structure verificati
I transferred a file from revit and ran structure verification without any errors or warnings.
However, after meshing (haven't done anything else in between) I get an error which is "No material" and a warning which is " Incoherent mesh on edges".
I tried re-mashing the panels without any luck.
My questions are,
- What is the reason for this error, since I didn't get it on the initial verification?
Make settings like this:
Turn off kinematic links, use Iterative adjustment
(gryed out field settings also important ; element size - up to you)
- What is the procedure to fix errors and warnings?
After above changes ther is only one error in your model :
move indicated point by drag and grop to new location - click on this point \ cross twice (not doubleclick) and drag it to new location
Corrected file attached.
In addition, I've read the following post
http://forums.autodesk.com/t5/Autodesk-Robot-Struc
tural/T-slab/m-p/3185418#M915 which displays a discrepancy in regards to the getting started guide (offset definition pp109)
Which is to prefer?
Decision is yours.
Lastly, I've read a lot of threads regarding releases lately.
As I understand, there should be some constraints at all support nodes. What is the release by default, and should these be changed or be keep the same?
As a default in robot all connections between elements are fixed.
In Revit - it depends on seetings in Revit - usually all are pinned but in your model (at least in the robot model you sent all of them are fixed). So if you need releases on bars please assign them.
Rafal Gaweda
Product Support
Autodesk, Inc.
