Hi Rafael,
I have desinged a simple truss walkway but am getting type 1 instabilities in the pin supports in all directions (RX, RY, RZ).
The member utilization ratios are very small, but i cant seem to correct the errors unless i place bracing at the base of the supports.
Is there a solution without over designing the structure?
I have attached the model for your use.
Regards
Steve
Solved! Go to Solution.
Solved by Rafal.Gaweda. Go to Solution.
Solved by Rafal.Gaweda. Go to Solution.
I think the releases on all columns should be defined as shown below:
Steve
HOw come you have the Ry fixed for the right sided columns and free for the near side coloumns?
Check results ; releases on beams do that
Would this also not create a moment in the pin connection?
Check results - see below
Hi Rafal,
I seemed to have solved the problem and was running the analysis error free.
I then made some adjustements to the type of bars< assigning columns, beams and bars, all of which have the same properties.
Please see the attachement to see the latest error.
Thanks
Steve
Can't find what you're looking for? Ask the community or share your knowledge.