Effective Concrete Tensile Strength at Time of Cracking
Mr. Langhammer is responsible for development in the area of reinforced concrete structures, and provides technical support to our customers.
Knowledge Base
Knowledge Base
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
Main Program
The new generation of 3D FEA software is used for the structural analysis of members, surfaces, and solids.
Add-On
The Concrete Design add-on allows for various design checks according to international standards. You can design members, surfaces, and columns, as well as perform punching and deformation analyses.
Add-On
The Construction Stages Analysis (CSA) add-on allows for considering the construction process of structures (member, surface, and solid structures) in RFEM.
Add-On
In RFEM, the Geotechnical Analysis add-on uses properties from soil samples to determine the soil body to be analyzed. The accurate determination of soil conditions significantly affects the quality of the structural analysis of buildings.
Add-On
The Modal Analysis add-on allows for the calculation of eigenvalues, natural frequencies, and natural periods for member, surface, and solid models.
Add-On
The Response Spectrum Analysis add-on performs seismic analysis using multi-modal response spectrum analysis. The spectra required for this can be created in compliance with the standards or can be user-defined. The equivalent static forces are generated from them. The add-on includes an extensive library of accelerograms from seismic zones that can be used to generate the response spectra.
Add-On
Using the Pushover Analysis add-on, you can analyze the seismic actions on a particular building, and thus assess whether the building can withstand an earthquake.
Add-On
The Building Model add-on for RFEM allows you to define and manipulate a building using stories. The stories can be adjusted in many ways afterwards. The information about stories and the entire model (center of gravity) is displayed in tables and graphics.
Add-On
The Masonry Design add-on for RFEM allows you to design masonry using the finite element method. It was developed as part of the research project titled DDMaS – Digitizing the Design of Masonry Structures. The material model represents the nonlinear behavior of the brick-mortar combination in the form of macro-modeling.