# \#structure-modification

**URL:** https://community.dlubal.com/tag/structure-modification/523.md

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## [Rigid Links and Structural Modifications](https://community.dlubal.com/t/rigid-links-and-structural-modifications/4895)

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**Author:** [@dbesed](https://community.dlubal.com/u/dbesed)\
**Replies:** 1\
**Last updated:** [October 2, 2026, 9:03am UTC](https://community.dlubal.com/t/rigid-links-and-structural-modifications/4895 "2026-10-02T09:03:48Z")

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I’m trying to model construction stages using result combinations and structural modifications. I encountered the following problem: If I model the connection using rigid links, the model becomes unstable as soon as I d…

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## [Structure Modifications Nodal suport](https://community.dlubal.com/t/structure-modifications-nodal-suport/4660)

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**Author:** [@dbesed](https://community.dlubal.com/u/dbesed)\
**Replies:** 1\
**Last updated:** [September 23, 2026, 12:40pm UTC](https://community.dlubal.com/t/structure-modifications-nodal-suport/4660 "2026-09-23T12:40:09Z")

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Hi, I have the following problem. When I try to modify the stiffness of a nodal support, everything is grayed out and I cannot change anything. How can I add a stiffness modification to a nodal support? I need this b…

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## [Isotropic Damage Concrete Model for Linear Buckling Analysis](https://community.dlubal.com/t/isotropic-damage-concrete-model-for-linear-buckling-analysis/4284)

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**Author:** [@Filip\_r](https://community.dlubal.com/u/Filip_r)\
**Replies:** 3\
**Last updated:** [September 7, 2026, 8:11am UTC](https://community.dlubal.com/t/isotropic-damage-concrete-model-for-linear-buckling-analysis/4284 "2026-09-07T08:11:48Z")

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Hi, I am currently preparing a linear eigenvalue buckling analysis (LBA) of a steel-concrete composite beam model in RFEM 6. The full model uses the following material models: Structural steel S355 – Isotropic | P…

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## [Create stiffness rods between (two) nodes](https://community.dlubal.com/t/steifigkeitsstabes-zwischen-zwei-knoten-erstellen/3908)

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**Author:** [@alex.muellner](https://community.dlubal.com/u/alex.muellner)\
**Replies:** 3\
**Last updated:** [July 23, 2026, 2:52pm UTC](https://community.dlubal.com/t/steifigkeitsstabes-zwischen-zwei-knoten-erstellen/3908 "2026-07-23T14:52:12Z")

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Hello, I want to create a stiffness rod using the API. My current code runs without errors, but no rod is created, and I don’t see any in the model; please help. Excerpt from the current Pyth…

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## [Assigning a stiffness modification to a structural modification](https://community.dlubal.com/t/stabsteifigkeitsmodifikation-zuweisen/3242)

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**Author:** [@leni1](https://community.dlubal.com/u/leni1)\
**Replies:** 5\
**Last updated:** [May 6, 2026, 1:17pm UTC](https://community.dlubal.com/t/stabsteifigkeitsmodifikation-zuweisen/3242 "2026-05-06T13:17:23Z")

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Hello everyone, I want to assign a beam stiffness modification to a structural modification and am having problems with it. Creating the structural modification and adjusting material stiffnesses worked without any problems…