Question:
In my model, there is a member that is only subjected to tension, but cannot be defined as a tension member, otherwise the model becomes unstable. After the calculation according to the second-order analysis, small moments arise. How can I redistribute these internal forces efficiently?
Answer:
In this case, there are two options for redistributing the internal forces:
Definition of Rotational Spring; see Image 01.
Modification of stiffness using a factor; see Image 02.