problem applying loads

[hayanawdi]

I am trying to apply loads on a simple beam but i can't. 

The problem is when i oped the Load Definition dialog box the loads that i want to apply under Bar are grayed out and can't be applied.

See the attached picture!

I have used RSA before and never had this issue. all the loads types are defined properly. I even opened and old file that i had with all the loads applied and analysis done and had the same problem in the old file as well.

I was able to trick the software by adding a nodal force, then in the load table I was only able to change it to trapezoidal force. however the analysis results came BAD!! reactions on a simple beam showed as if the load was uniform and it didn't show any moment at all.

[Rafacascudo]

try to change to another load case and then come back to the case you want insert loads.

If it doesn´t work , send the model here

[hayanawdi]

I tried that and it didn't work.

attached are 2 models with the same problem.

again I opened older files that I had from 2 years ago using RSA 2015 the loads are there and i can see them but I can't add new ones. now I am using 2017.

[Rafacascudo · Accepted solution]

Both models were made with a "structure type"  ( on geometry menu ) that does not allow loads in midspan.

One model was  "2d truss design" structure type

and the other was a " 3d truss design"

If you really need loads applied on midspan ,then change them to 3d frame and 2d frame structure types