We provide hints and tips to help you get started with the basic program RFEM.
KB 001632 | Subsequent Modeling of a Downstand Beam Under Existing Floor
Video
First Steps with RFEM
Description
When you perform the subsequent modeling of a beam under an existing floor, the first question arises which forces should be transferred between the downstand beam and the floor and whether a composite effect is the goal. In this case, the floor should rest on the downstand beam without any composite.
Keywords
Dlubal Knowledge Base Line release Additionally Downstand beam Shear coupling Composite Contact Dlubal KB Knowledge Base Technical contribution to Dlubal Software
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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?
- 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?
- How is the support spring calculated for a wall?
- 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?
