We provide hints and tips to help you get started with the basic program RFEM.
Effective depth
Video
First Steps with RFEM
Description
What is the effective depth? In short, this is the distance between the component edge of the compression side and the centroid of the tension reinforcement.
It is directly related to the bending design of a component because it defines the inner lever arm and therefore also the acting tensile and compressive forces.
In this video, we will show you how to find out the effective depth of a component and then where to find it in the RF-CONCRETE Surfaces add-on module.
Have fun!
Keywords
Dlubal Infotainment Structural analysis - basics Structural analysis Civil engineering studies Structural Design Concrete structure Concrete Reinforced concrete RF-CONCRETE Surfaces E-learning Entertainment Construction industry Civil engineering Civil engineer Studies Structural engineering Structural engineer
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DIN EN 1998-1 with the National Annex DIN EN 1998-1/NA specifies how to determine seismic loads.
Features of RF-CONCRETE Surfaces
- Free definition of two or three reinforcement layers in the ultimate limit state
- Vectorial representation of the main stress directions of internal forces allowing optimal orientation adjustment of the third reinforcement layer to the actions
- Design alternatives to avoid compression or shear reinforcement
- Design of surfaces as deep beams (theory of membranes)
- Option to define basic reinforcements for top and bottom reinforcement layer
- Definition of designed reinforcement for serviceability limit state design
- Results output in grid points of any selected grid
- Optional extension of the module with nonlinear deformation analysis. The calculation is performed in RF‑CONCRETE Deflect by reducing the stiffness according to the standard, or in RF‑CONCRETE NL by the general nonlinear calculation determining the stiffness reduction in an iterative process.
- Design with design moments at column edges
- Itemization of reasons for failed design
- Design details of all design locations for better traceability of reinforcement determination
- Export of isolines for the longitudinal reinforcement in a DXF file for further use in CAD programs as a basis for reinforcement drawings
- It takes a long time to save my structure. What is the reason for this?
- I just have to calculate an open hall with low roof loads and relatively high wind loads compared to it. In theory, a design of the bottom flange for buckling/toppling would have to be performed. Unfortunately, there is no combination of 1.0 * G +1.5 * W.
- For the foundation design, I need the results (support reactions) of a design situation for "static equilibrium." How do I get them?
- How do I get the largest column load in my RFEM 3D model?
- Why do I get the error message 10203 for a result beam when performing design with RF‑CONCRETE Members?
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How can I retrospectively reduce the determined provided longitudinal reinforcement in RF‑CONCRETE Columns?
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Is it possible to specify shrinkage effects as loads?
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Which units are specified in the result display of the support reactions (kN or kN/m)? A note about this is missing in the graphic.
In the case that the support reactions are given in kN/m, for which distance does the value apply? - Four surfaces have identical loads, but they show different negative moments at the support location. Is this an error?
- Where do I find the setting to specify the entered structural component as a "wall" or "slab"?
