Hello all,
I have been trying to model a truss. I have two bottom support, it can be fully fixed or partially fixed and I have two cable connection at the top. But this cable member should not take any compression, since I have Wind suction in that direction(I have considered that direction, let it be any possible load in that direction), it is taking compression which I understood from the direction of reaction loads. How can I turn this member as like a cable without warnings or errors.
At first, I had many errors when I was giving TRUSS specification to the members and later I have changed it into Partial Release of Moments Mx, My & Mz with 0.99 release. Now how can I solve this cable issue.
(What I would like to have is, if that two members are cable, then there should be only tension in the supports and members. How can I make that?)I am attaching the file here.
Thanks.
Truss study.std
Try assigning the Tension Only specification to these members. Note that if Tension or Compression Only specification is used, then loads should be combined by using the REPEAT LOAD option instead of Load Combination.
Answer Verified By: Mohamed P
I have tried this, but I am getting a lot of warnings like "*WARNING- ZERO STIFFNESS IN DIRECTION 6 AT JOINT 61 EQN.NO. 272".
Now it's not taking compression(that is what I wanted, it's good), but a lot of warnings are there.
Attach that modified model please.
5736.Truss study.std
Change the Pinned supports to Fixed and this will eliminate the warnings.
Solved.
Thank you.