We provide hints and tips to help you get started with the basic program RFEM.
FAQ 003452 | Is there a possibility in RFEM to define a global polar grid whose origin lies, for example, in the global zero point and which applies to several surfaces?
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First Steps with RFEM
Question
Is there a possibility in RFEM to define a global polar grid whose origin lies, for example, in the global zero point and which applies to several surfaces?Answer
In RFEM, it is possible to define a surface grid for the results output. The grid can be related locally to the surface or to a global point in the coordinate system. Thus, it is possible to refer the grid to the same origin for each surface. However, you have to define this setting individually for each surface.
The video illustrates the procedure.
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Dlubal FAQ Surface grid Grid Polar grid Frequently Asked Question FAQ about Dlubal Question and Answer about Dlubal
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Often, models are needed in several projects, like the purlin with columns and knee braces in this example. The dimensions can be changed directly in RFEM or RSTAB by shifting the nodes.
Material Model Orthotropic Masonry 2D
The material model Orthotropic Masonry 2D is an elastoplastic model that additionally allows softening of the material, which can be different in the local x- and y-direction of a surface. The material model is suitable for (unreinforced) masonry walls with in-plane loads.
- How can I create a curved or arched section?
- I often edit the reinforcement provided by the program. Adjusting the reinforcement by using coordinates takes much effort and time if having several beams in the model. Is there any way to speed up the reinforcement editing?
- Which filter settings should be selected in the material library for concrete in order to perform design in RF‑CONCRETE according to the Swedish National Annex? In RFEM, there is no Swedish standard group available for the selection.
- What is the best way to consider steel fiber reinforced concrete with the structural analysis program RFEM?
- How is the support spring calculated for a wall?
- I would expect the results from my load combination (CO) set to a linear analysis to equal the summation of the results from my load cases (LC) also set to a linear analysis. Why do the results not match?
- A rigid member should only be able to absorb tensile forces or only compressive forces. What are the options for considering these nonlinearities in the calculation?
- Does a user-defined layer composition in RF-LAMINATE need to be shared separately with other users along with the RFEM model file or is this information stored directly in the RFEM file?
- In a 3D model consisting of three identical floors, I applied a unit load of 1 kN/m² to the top slab to determine the spring stiffness of the supports for 2D modeling of the slabs from normal forces and deformations of the columns. Despite the deactivation of the self-weight of the structure, there is a redistribution of the column normal forces by storey. Is it possible to deactivate this effect?
- Are the Dlubal Software programs suitable for the analysis and design of hydraulic steel structures?
