Hello,
I made a frame structure in which i made the top member of truss as a single member and did the analysis but all members were instable because of slenderness and then i divided it into parts with the nodes connecting web. then analysis showing it is stable. so in real world web member supporting the top member. So my question is that to divide the top member is correct way or not?
truss top member instable because of slenderness
Could you zip and share your model
M. Agayr
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in addition to the file requested by @Simau have you read this topic ? Modify Member Types
Best Regards
Stéphane Kapetanovic
don't forget to accept the solution and leave a < like !
You need to add some horizontal and vertical bracing, then fil correct parameters for top members type
M. Agayr
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Before going any further on this topic, I have a few questions:
- Is this a real structure or a school project?
- Your first post was about the resistance of a split or merged member. Now you're asking other questions which need to be treated in another thread.
- You assigned the generic "beam" type to all the roof members, but in your model, it's very difficult to enter the buckling parameters because of the unusual design.
- Your structure will be unstable under wind direction Y
- I recommande you to post the model of a more classic structure to answer, initially, with the question of your first message
M. Agayr
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