Warning - The load has not been distributed correctly there are no objects or elements carrying the load overlap

[skellyRSA2023]

Hi, 

on models created, when i run the wind loading simulation and then rerun the calculations, on most models i always get a warning message - "The load has not been distributed correctly there are no objects or elements carrying the load overlap", see snapshot attached showing the highlighted areas, this seems to happen a lot of the models i create and in most instances i just ignore? however does anyone know what is the cause of this issue? and will effect the final results of the model dramatically? it only happens after the wind loading has been applied to the frame hence i am assuming its something to do with how wind load has been distributed on the structure. Any advise or suggestions would be appreciated. 

Simon. 

[Stephane.kapetanovic]

hi Skelly,

sometimes they are non-planar or non-contiguous panels. Also may not transfer loads in both directions (X and Y direction). Could you give us a model?

Best regards

[skellyRSA2023]

Hi, 

i sent you download link in message, for some reason it would not allow to post download link to model and results file directly in forum? let me know if you got it. The openings in panels have been frame out using curtain walling and all openings in panels where closed for wind simulation, however it does not seem to be the vertical panels which are affected but more so the floor plates which are not meshed out only load distribution element, however sure the wind loading should not affect these?

thanks, 

Simon. 

[Stephane.kapetanovic · Accepted solution]

hi skelly,

after having checked all beams and panels, apart from very small differences, there are no geometrical problems of junction between elements. Problem is elsewhere. Try with the support team

Best regards

[Anonymous · Accepted solution]

Display the table of loads and select the option "delete empty loads" under the right mouse button. If this does not help - correct the geometry of cladding and panels using the tools provided here under a section usefull API tools  https://forums.autodesk.com/t5/robot-structural-analysis-forum/useful-addins-for-robot-api/td-p/3899...  by selecting the accuracy of 0.001 or 0.0001 [m] not less !

[Stephane.kapetanovic]

I am not at the initiative of the model (answer to skelly instead)but it does not seem to include any irregularity to be repaired by a rounding of the values.

[skellyRSA2023]

Hi, 

Thanks the responses @Stephane.kapetanovic & @Anonymous , i have tried deleting the empty loads from the table, and i have also gone through the link "The load has not been distributed correctly - There are no objects or elements carrying the load overlap" while model analysis in Robot Structural Analysis | Robot Structural Analysis Products | Autodesk Knowledge Network however, i have rerun the model and still it flags up the same warning on the same panels? not sure if this is a glitch or something more serious so i have put it to the helpdesk to see if they can maybe look at something hopefully. 

S.

[skellyRSA2023]

Hi, @Krzysztof_Wasik & @StefanoPasquini6790 would it be possible that maybe one of you have come across this issue before and know whether it can be ignored or not? 

Thanks, 

S. 

[StefanoPasquini6790 · Accepted solution]

Hi @skellyRSA2023 ,

This is a common message, that probably can be ignored. My trick to manage this kind of messaged is to compare the results with handy calcs. For example, if you double click on the warning message, it will be highlighted the panels with error. If you select it you can read in the control panel the surface value. Now, you can create a load case called "test" and apply on the error panels the value of 1 KN/m2. Once you run the calculation you can easily check the value of the sum of the reaction for load condition "test" and compare it with the applied loads, that depend directly from the surface. 

If the values are close or identical, you can ignore the warning, otherwise if the values are really different you have investigate deeply your structure.

Hope I help you, good luck

[skellyRSA2023]

Hi @StefanoPasquini6790 yes i tried one of the floor plates (panel 2503) and applied a 10kN/m2 test surface load on the panel and it seems to be distributing the load down to foundation level as per the attached sum of reactions as plate is 42.45m2 area, hence 425kN as per the attached screenshot, thus i think the model is fine. However it would be nice to know why this issue warning message occurs as it does happen quite a bit and its difficult to explain to somebody else who may not be familiar with Robot that this is warning which can ignored. 

Many thanks for your help @StefanoPasquini6790 @Stephane.kapetanovic @Anonymous 

Simon. 

[gerry.estepa]

I also always encounter the same problem... here's how I was able to remove the error message...

From the menu... click on - Analysis / Analysis Types... select the Tab = Structure Model... set Tolerance calculations to User-defined (default is Automatic)... I set mine from 1 mm to 10 mm as tolerance... when I rerun the Calculations, the message disappeared... hope it works for you, as well...