I'd like to know how the RSA is handling the offsets for frame members, for example suppose that there is an ordinary vertical column and if there are horizontal beams connecting to top node of that column with different offset settings. Then how the RSA deals with that, visual observation reveals that RSA creates artificial lever arm for differently connecting beams.
Your englightment will be appreciated.
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You may say that an offset is a virtual rigid link with no real generation of 'the other' node.
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Thanks a lot indeed,
So basically how this maps into FEM theory implemented in RSA, by assuming that this rigid link has same as the beam properties Ix, Iy, Iz , A, poisson ratio etc.. except that Young Modulus is much more higher than the beam ?
Is my assumption correct ?
They are used if RLinks are switched off. Mind that Sparse and Multi-threaded solvers due to their architecture force use of RLinks regardless of the setting in Job Preferences.
This feature in which we are able to model an offset by a kinematic constraining rather than using Rlinks is really interesting, i wasn't aware that we were able to do that..
Can we do such a modeling (by kinematic constrains) for a diaphragm too? (i.e instead of assigning Rlinks between master node and slave nodes)? I mean, can we just constrain some d.o.f of selected nodes?
Can we do such a modeling (by kinematic constrains) for a diaphragm too?
Yes, the general rules I described above apply. You have to switch off RLinks and set the solver as Frontal, Skyline or Iterative.
Thank you for your reply Artur,
Do you mean that even if we model manually a diaphragm by defining manually rigid links between nodes, we can switch off the Rlinks in Job Preferences and then there would be kinematic constrains?