# \#set-of-members

**URL:** https://community.dlubal.com/tag/set-of-members/800.md

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## [Buckling length factors from stability analysis for rod sets/rod groups](https://community.dlubal.com/t/knicklangenbeiwerte-aus-stabilitatsanalyse-fur-stabsatze-stabzuge/4163)

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**Author:** [@DeflectionPerfection](https://community.dlubal.com/u/DeflectionPerfection)\
**Replies:** 3\
**Last updated:** [August 25, 2026, 1:15pm UTC](https://community.dlubal.com/t/knicklangenbeiwerte-aus-stabilitatsanalyse-fur-stabsatze-stabzuge/4163 "2026-08-25T13:15:10Z")

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Good day, In a current project, I need to perform external buckling checks (Dlubalextern Knicknachweise) using analytical formulas for overhead line construction. For this, I would like to use somewhat lower effective buckling lengths than the structural height (beta…

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## [Stability proof with eigenform](https://community.dlubal.com/t/stabilitatsnachweis-mit-eigenform/1792)

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**Author:** [@Mikalea](https://community.dlubal.com/u/Mikalea)\
**Replies:** 4\
**Last updated:** [September 1, 2025, 12:36pm UTC](https://community.dlubal.com/t/stabilitatsnachweis-mit-eigenform/1792 "2025-09-01T12:36:44Z")

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Hi, I am currently calculating a steel hall with RFEM 6. I perform the stability verifications of the beams using the general method. While checking the results, I noticed that the eigenform does not...