Building diaphrgam roof not working as expected

[mcroftsRNARJ]

Hi, 

I have a multipitched roof with a shell diaphragm since not flat. The load is not going back to the steel members as expected, and there are various errors about the load not distributing. I have tried the merge/clean up to help fix the awkward geometry. Can someone help fix this model? 

[Rafacascudo]

you cannot set a diaphragm on an inclined slab using RSA

From Robot manual

Note: Diaphragms can be generated only on horizontal panels in the XY plane

https://help.autodesk.com/view/RSAPRO/2024/ENU/?guid=GUID-F57A58F9-81AA-4410-84EA-6BFFD83D115C

also, check this 

https://forums.autodesk.com/t5/robot-structural-analysis-forum/warning-the-load-has-not-been-distrib...

[mcroftsASCNW]

@Rafacascudo 

I have followed procedure on this forum by adding shell (not ticked diaphragm action):

https://forums.autodesk.com/t5/robot-structural-analysis-forum/creating-a-diaphragm-roof/td-p/592582...