We provide hints and tips to help you get started with the basic program RFEM.
FAQ 003101 | How can I deactivate or modify the individual nodal supports in the model by load case?
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First Steps with RFEM
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How can I deactivate or modify the individual nodal supports in the model by load case?Answer
In RFEM 5 and RSTAB 8, there is the option to assign various stiffnesses to the individual objects, such as nodal supports, by load case. You can find this function in the calculation parameters of load cases and load combinations.
Image 01 - Modifying Stiffnesses
In addition, you can deactivate individual objects by load case in RFEM 5.
Image 02 - Deactivating Objects
The tab allows you to ignore certain objects of the model in the calculation. In this way, the effect of temporary members (construction supports) or supports can be analyzed, for example.
In order for the adjustments to be taken into account in the calculation, the Modify stiffness function must be activated in the calculation parameters of the program.
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Dlubal FAQ Deactivate nodal support Deactivate Modify stiffnesses Frequently Asked Question FAQ about Dlubal Question and Answer about Dlubal
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New
Favorite groups in the cross-section library
The cross-section library in RFEM 5 and RSTAB 8 offers the option to save certain cross-section selections in different favorite groups.
New
Increased Calculation Performance by Reducing the Nodal Degrees of Freedom
The number of degrees of freedom in a node is no longer a global calculation parameter in RFEM (6 degrees of freedom for each mesh node in 3D models, 7 degrees of freedom for the warping torsion analysis). Thus, each node is generally considered with a different number of degrees of freedom, which leads to a variable number of equations in the calculation.
This modification speeds up the calculation, especially for models where a significant reduction of the system could be achieved (e.g. trusses and membrane structures).
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