Activating Internal Member Division for Stability Analysis

Tips & Tricks

When analyzing structural elements susceptible to buckling by using the modules RF‑STABILITY (for RFEM) or RSBUCK (for RSTAB), it might be necessary to activate the internal division of members. If there are, for example, truss members, these are not divided internally. In this way, a global buckling mode is determined as first eigenvector in the stability analysis (see Picture 1). When activating the member divisions, we see that a local buckling of the structure is governing (see Picture 2). The figure shows the option for activating the division in RF‑STABILITY.

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RFEM Other
RF-STABILITY 5.xx

Add-on Module

Stability analysis according to the eigenvalue method

RSTAB Other
RSBUCK 8.xx

Add-on Module

Stability analysis according to the eigenvalue method