Problem with contour load

[Anonymous]

Hi,

I have used the uniform planar load on contour and I am getting the error message "Incorrect definition of contour load." How can I solve this? I've been thinking that the problem maybe because I used only one panel for the whole floor slab. Below is the link for the robot file. Thanks

http://www.4shared.com/zip/yB9G2Ryb/SFS_281013_5.html

[Artur.Kosakowski]

As far as I can tell you defined some contours 'larger' than slabs.

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.

[Anonymous]

I tried to make a simple model with the contour load larger than the panel but I did not encounter the error message. I sort of tried to "create the error" from a small model. Since no error appeared, I thought there must some other reason.

Attached is the screenshot of the model I tested.

[Pawel.Pulak · Accepted solution]

The reason of error messages was in incorrect definitions of contours in planar loads on contour in 5 load records of load cases 2 and 5:

1/ the 6th load record in load case 2

2/ the 3rd, 14th, 18th and 14th from the end load records in load case 5

In all of them there was some additional point defined resulting in the incorrect shape of the contour. It was necessary to delete the line corresponding to such point - shown in the attached screen captures.

Link to the corrected file:

http://www.4shared.com/zip/GiBqK3J8/SFS_281013_5corrected.html

---------------------------------------------
If this post answers your question please click the "Accept as Solution" button. It will help everyone to find answer more quickly!

Regards,

[Anonymous]

Thank you Pawel/Arthur, that was very helpful. I understand now. It would have taken us long to capture those. Just want to ask, how can those errors be located easily?  

[Pawel.Pulak]

Unfortunately such incorrect load records cannot be easily located in RSAPro 2013 😞
Except of checking load contour in each load record the simplest method seems separating each such load record into separate load case, running analysis and checking in which load case results are not available (N/A).

I have not done it in such extreme way of single load record per load case - I have done it consecutively transferring groups of load records from case 2 and 5 to new load cases, running analysis and checking results.
When I have identified groups of several load records containing between them one with incorrect contours I have checked manually the definitions of contours - as on the screen captures attached to my previous response.

Regards,

[Anonymous]

Thanks Pawel, we appreciate your help much more knowing you did those to fix our model.

It can then be told that it is important to be careful in drawing the contours for these loads in Robot to avoid such errors, especially for big models.