The "Transparent" option at the end of the Results Navigator is an alternative to the text bubble. If selected, the text bubble is replaced by a point at the location of the resulting value, showing the result values transparently. The size and color of the point can be set in the display properties of RFEM. To do this, click "Display Properties" → "Colors" → "Other" → "Text Bubbles". You can specify the size of the point with the "Line thickness" entry. The value of 3 for the line thickness and the color red are set by default.
Displaying Result Values
You can document the results of RF‑CONCRETE Surfaces graphically in the printout report. To do this, the "Values on Surfaces" setting is often selected in the Results Navigator of RF‑CONCRETE Surfaces. A text bubble including a result value is displayed, and depending on the settings in the Results Navigator, it can be displayed on the surface grid points, manually defined points, or in FE mesh points.
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This article deals with rectilinear elements of which the cross-section is subjected to axial compressive force. The purpose of this article is to show how very many parameters defined in the Eurocodes for concrete column calculation are considered in the RFEM structural analysis software.
RF-CONCRETE Members also includes the design of a shear joint. In order to perform this design, you should select the "Shear joint available" check box in Window 1.6, Shear Joint tab.
It is possible to edit a reinforcement layout or an existing reinforcement directly in the reinforcement's 3D rendering.
The reinforced concrete design for fire situations is carried out according to the simplified method based on EN 1992-1-2, Clause 4.2. The "zone method" described in Annex B.2 is used: The cross-section is subdivided into a number of parallel zones of equal thickness, and their temperature-dependent compressive strength is determined. The reduced load-bearing capacity in the event of fire exposure is thus represented by a reduced structural component's cross-section with reduced strengths.
The reinforcement proposal from RF-/CONCRETE Members can be exported to Revit. The rectangular and circular cross-sections are currently supported.
The reinforcement bars can be modified retroactively in Revit.
Surface reinforcements defined in the RF-CONCRETE Surfaces add-on module can be exported to Revit as reinforcement objects via the direct interface. To do this, you can optionally select surface, rectangular, polygon, and circular reinforcement areas in RF-CONCRETE Surfaces. In addition to bar reinforcement, it is possible to export mesh reinforcement.
- Automatic import of internal forces from RFEM
- Ultimate limit state and serviceability limit state design
- The module extension EC2 for RFEM enables the design of reinforced concrete members according to EN 1992‑1‑1:2004 (Eurocode 2) and the following National Annexes:
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DIN EN 1992-1-1/NA/A1:2015-12 (Germany) -
ÖNORM B 1992-1-1:2018-01 (Austria) -
NBN EN 1992-1-1 ANB:2010 (Belgium) -
BDS EN 1992-1-1:2005/NA:2011 (Bulgaria) -
EN 1992-1-1 DK NA:2013 (Denmark) -
NF EN 1992-1-1/NA:2016-03 (France) -
SFS EN 1992-1-1/NA:2007-10 (Finland) -
UNI EN 1992-1-1/NA:2007-07 (Italy) -
LVS EN 1992-1-1:2005/NA:2014 (Latvia) -
LST EN 1992-1-1:2005/NA:2011 (Lithuania) -
MS EN 1992-1-1:2010 (Malaysia) -
NEN-EN 1992-1-1+C2:2011/NB:2016 (Netherlands) -
NS EN 1992-1 -1:2004-NA:2008 (Norway) -
PN EN 1992-1-1/NA:2010 (Poland) -
NP EN 1992-1-1/NA:2010-02 (Portugal) -
SR EN 1992-1-1:2004/NA:2008 (Romania) -
SS EN 1992-1-1/NA:2008 (Sweden) -
SS EN 1992-1-1/NA:2008-06 (Singapore) -
STN EN 1992-1-1/NA:2008-06 (Slovakia) -
SIST EN 1992-1-1:2005/A101:2006 (Slovenia) -
UNE EN 1992-1-1/NA:2013 (Spain) -
CSN EN 1992-1-1/NA:2016-05 (Czech Republic) -
BS EN 1992-1-1:2004/NA:2005 (United Kingdom) -
TKP EN 1992-1-1:2009 (Belarus) -
CYS EN 1992-1-1:2004/NA:2009 (Cyprus)
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- In addition to the National Annexes (NA) listed above, you can also define a specific NA, applying user‑defined limit values and parameters.
- Flexibility due to detailed setting options for basis and extent of calculations
- Fast and clear results output for an immediate overview of the result distribution after the design
- Graphical results output integrated in RFEM; for example, required reinforcement
- Numerical results clearly arranged in tables and graphical display of the results in the model
- Complete integration of results in the RFEM printout report
- 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 layers
- Definition of designed reinforcement for serviceability limit state design
- Result output in 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
- Precise breakdown 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
What is the maximum number of reinforcement groups that can be created in a design case in RF‑CONCRETE Surfaces?
In RF‑CONCRETE Surfaces, I obtain a high amount of reinforcement in relation to a lever arm that is almost zero. How is such a small lever arm of internal forces created?
When converting from the manual definition of reinforcement areas to the automatic arrangement of reinforcement according to Window 1.4, the result of the deformation calculation differs, although the basic reinforcement has not been modified. What is the reason for this change?
Why do I get a discontinuous area in the distribution of internal forces? In the area of the supported line, the shear force VEd shows a jump, which does not seem plausible.
Is it possible to perform design without an additional reinforcement in RF‑CONCRETE Surfaces?
I obtain different results when comparing the deformation analysis in the RF‑CONCRETE add-on modules and another calculation program. What could be the reason for this?
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