Both the number and the layout of guidelines can be adapted to the geometric conditions of a model.
For the modeling purposes, it is possible to "lock" the guidelines. It prevents from moving the guidelines unintentionally when graphically entering objects. However, the snap function at the intersection points of the guidelines remains active.
Entering in RFEM and RSTAB
You can generate the guidelines in the current work plane graphically or by entering the data in the corresponding dialog box. The input dialog box can be accessed by using the menu "Insert" → "Guidelines" → "Dialog Box."
Guidelines can be defined in the following ways:
- Parallel to the axis of the global coordinate system in the current work plane
- Optionally via two points or a point and an angle in the current work plane
- Polar in the current work plane
When displaying guidelines, it is possible to show or hide their numbering or a user-defined description.
For guidelines, there are the graphical editing functions available. This allows you to move or copy the selected guideline into the original plane. It has no effect on the definition type (see the list above).
The RF-/STEEL EC3 add-on module automatically transfers the buckling line to be used for the flexural buckling analysis for a cross-section from the cross-section properties. In particular for general cross -sections, but also for special cases, the assignment of the buckling line can be adjusted manually in the module input.
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).
- Does the load generation also work for curved members?
- I would like to calculate and design "temporary structures." What do I need for this?
- 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?
- I design timber components. The deformations of load combinations deviate from the manual calculation exactly by the factor of the material partial safety factor. Why?
- Which programs can I use to calculate and design power plants?
- 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.
- I have analyzed two models of an inclined bored pile as a support with defined spring stiffness. A surface that can be moved horizontally (globally) is used for the force transmission. The bored pile in Model A is a support inclined by 15° with a spring stiffness of 2,000 kN/m in the axial direction. The bored pile of Model B is a support with the defined spring stiffnesses, divided into the respective horizontal and vertical components. The value of the spring stiffness is always the same (2,000 kN/m). In my opinion, both models are equivalent. Why are there different results in the deformation anyway?
- What is the best way to consider steel fiber reinforced concrete with the structural analysis program RFEM?
- I design a cross-section created in the SHAPE‑THIN program by using the RF‑STEEL EC3 add-on module, but the program shows the error message "ER006 Invalid type of c/t-part for cross-section of type General." What can I do?
- How can I increase the maximum number of iterations in RFEM/RSTAB?
Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements
The structural engineering software for design of frame, beam and truss structures, performing linear and nonlinear calculations of internal forces, deformations, and support reactions