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2015-04-29

RF-CONCRETE | Results

After the calculation, the module shows clearly arranged tables listing the required reinforcement and the results of the serviceability limit state design. All intermediate values are included in a comprehensible manner.

The results of RF‑CONCRETE Members are displayed as result diagrams of each member. The reinforcement proposals of the longitudinal and the shear reinforcement, including sketches, are documented in accordance with current practice. It is possible to edit the reinforcement proposal and to adjust, for example, the number of members and the anchorage. The modifications will be updated automatically. A concrete cross‑section, including reinforcement, can be visualized in a 3D rendering. This way, the program provides an optimal documentation option to create reinforcement drawings, including steel schedule.

The results of RF-CONCRETE Surfaces can be displayed graphically as isolines, isosurfaces, or numeric values. It is possible to sort the longitudinal reinforcement display by required reinforcement, required additional reinforcement, provided basic or additional reinforcement, and provided total reinforcement. The isolines of the longitudinal reinforcement can be exported as a DXF file for further use in CAD programs as a basis for reinforcement drawings.

RF-CONCRETE Surfaces - Graphical Results Output for Complete Structural Model
RF-CONCRETE Surfaces - Graphical Results Output for Complete Structural Model
Events
2024-04-30
Online Training | English
EN-GB | Flag Online Training
RFEM 6 | Students | Introduction to Timber Design
2024-05-02
Construction Stages in Membrane Structures with RFEM 6
EN-GB | Flag Webinar
Construction Stages in Membrane Structures with RFEM 6
2024-05-08
Online Training | English
EN-GB | Flag Online Training
RFEM 6 | Students | Introduction to Reinforced Concrete Design
2024-05-08
Cross-Section Modeling and \n Stress Analysis in RSECTION 1
EN-GB | Flag Webinar
Cross-Section Modeling and Stress Analysis in RSECTION 1
2024-05-15
Online Training | English
EN-GB | Flag Online Training
RFEM 6 | Students | Introduction to Steel Design
2024-05-16
Consideration of Construction Stages in RFEM 6
EN-GB | Flag Webinar
Consideration of Construction Stages in RFEM 6
2024-05-23
Most Frequently Asked Questions Answered by Dlubal Support Team
EN-GB | Flag Webinar
Most Frequently Asked Questions Answered by Dlubal Support Team | May 2024
2024-05-29
Steel Structures in RFEM 6 \n Part 1: Modeling, Load Input
EN-GB | Flag Webinar
Modeling and Design of Steel Structures in RFEM 6 | Part 1: Modeling, Load Input
2024-06-06
Steel Structures in RFEM 6 \n Part 2: Combinations, Design, Documentation
EN-GB | Flag Webinar
Modeling and Design of Steel Structures in RFEM 6 | Part 2: Combinations, Design, Documentation
2024-06-20
Most Frequently Asked Questions Answered by Dlubal Support Team
EN-GB | Flag Webinar
Most Frequently Asked Questions Answered by Dlubal Support Team | June 2024
2024-10-16
Online Training | English
EN-GB | Flag Online Training
RFEM 6 | Students | Introduction to Member Design
2024-10-23
Online Training | English
EN-GB | Flag Online Training
RSECTION 1 | Students | Introduction to Strength of Materials
Videos
EN-US | Flag Knowledge Base
KB 001710 | Design of Concrete Columns Subjected to Axial Compression with RF-CONCRETE Members
Length: 00:01:09 min
EN-US | Flag Event
Online Training | RFEM for Students | Part 3 | 15.06.2021
Length: 02:50:31 min
FAQ|005020
EN-US | Flag FAQ
FAQ 005020 | Why does the note 155) appear as a result of the reinforced concrete design of members ...
Length: 00:00:33 min
FAQ | 005016
EN-US | Flag FAQ
FAQ 005016 | How can I select a diameter of rebars that is not available in the list ...
Length: 00:00:24 min
EN-US | Flag Knowledge Base
KB 000995 | Design of Shear Joint
Length: 00:00:32 min
EN-US | Flag Knowledge Base
KB 000913 | Fire Resistance Design for Reinforced Concrete Members
Length: 00:00:46 min
FAQ 005003
EN-US | Flag FAQ
Why do I get Error No. 10203 for a result beam when performing design with RF‑CONCRETE Members?
Length: 00:00:00 min
EN-US | Flag Knowledge Base
KB 000889 | Minimum Reinforcement Reduction of Slow-Curing Concrete
Length: 00:00:51 min
Event
Introduction to RFEM Program
Length: 00:00:00 min
Models to Download
FAQ 005020 | Why does the note 155) appear as a result of the reinforced concrete design of members for the existing stirrup reinforcement?
879x
30x
Reinforced Concrete Beam
Thesis on CLT Building by Miryea Alfano, Italy
716x
Timber and Concrete Building
Tapered Frame
774x
60x
Tapered Frame
Statically Determinate Beam
705x
31x
Statically Determinate Beam
Model for FAQ 004979
549x
16x
Concrete Slabs
Reinforced Concrete Beam
826x
39x
Reinforced Concrete Beam
Statically Determinate Beam
1059x
25x
Isostatic Beam
Model of High-Rise Residential Building in RFEM (© bauart Konstruktions GmbH & Co. KG)
1088x
High-Rise Apartment Building Made of Reinforced Concrete
Village Center Component A in RFEM (© Dipl.-Ing.Rainer Zangerle)
844x
Reinforced Concrete Building
Knowledge Base Articles
RFEM Model with Permanent and Variable Loads
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.
Design of Shear Joint
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.
Fire Resistance Design with CONCRETE and RF-CONCRETE Members
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.
Minimum Reinforcement Reduction of Slow-Curing Concrete
In the case of using slow‑curing concrete (usually for thick components), you can reduce the calculated minimum reinforcement by a factor of 0.85 to apply the load due to restraint, according to EN 1992‑1‑1, Section 7.3.2. However, a precondition for reduction is that the characteristic value of the strength development r = fcm2 / fcm28 does not exceed 0.3. Other key requirements for the application of this reinforcement reduction are specified explicitly in the final planning documents.
Screenshots
RF-CONCRETE Surfaces - Graphical Results Output for Complete Structural Model
RF-CONCRETE Surfaces - Graphical Results Output for Complete Structural Model
Column
Column
Provided Reinforcement Determined by RF-CONCRETE Members
Provided Reinforcement Determined by RF-CONCRETE Members
Required Reinforcement Determined by RF-CONCRETE Members
Required Reinforcement Determined by RF-CONCRETE Members
Optimization of Rectangular Cross-Section in RF-CONCRETE Members
Optimization of Rectangular Cross-Section in RF-CONCRETE Members
Table 4.10 Member Slendernesses
Table 4.10 Member Slendernesses
Changing Effective Length Factor for Member
Changing Effective Length Factor for Member
Display of Governing Loads in RF-CONCRETE Members
Display of Governing Loads in RF-CONCRETE Members
Display of Provided Stresses and Strains in RF-CONCRETE Members
Display of Provided Stresses and Strains in RF-CONCRETE Members
Product Features
Transfer of Reinforcement from RFEM/RSTAB (Top) to Revit (Bottom)

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.

Floor Design in RF-CONCRETE Surfaces (© Rohmer)
  • 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:
    • DE | Flag DIN EN 1992-1-1/NA/A1:2015-12 (Germany)
    • Austria | Flag ÖNORM B 1992-1-1:2018-01 (Austria)
    • Belgium Flag NBN EN 1992-1-1 ANB:2010 (Belgium)
    • Bulgaria | Flag BDS EN 1992-1-1:2005/NA:2011 (Bulgaria)
    • Denmark Flag EN 1992-1-1 DK NA:2013 (Denmark)
    • France Flag NF EN 1992-1-1/NA:2016-03 (France)
    • Finland Flag SFS EN 1992-1-1/NA:2007-10 (Finland)
    • Italy Flag UNI EN 1992-1-1/NA:2007-07 (Italy)
    • Latvia Flag LVS EN 1992-1-1:2005/NA:2014 (Latvia)
    • Lithuania Flag LST EN 1992-1-1:2005/NA:2011 (Lithuania)
    • Malaysia Flag MS EN 1992-1-1:2010 (Malaysia)
    • Flag of the Netherlands NEN-EN 1992-1-1+C2:2011/NB:2016 (Netherlands)
    • Norway Flag NS EN 1992-1 -1:2004-NA:2008 (Norway)
    • Poland Flag PN EN 1992-1-1/NA:2010 (Poland)
    • Portugal Flag NP EN 1992-1-1/NA:2010-02 (Portugal)
    • Romania Flag SR EN 1992-1-1:2004/NA:2008 (Romania)
    • Sweden Flag SS EN 1992-1-1/NA:2008 (Sweden)
    • Singapore Flag SS EN 1992-1-1/NA:2008-06 (Singapore)
    • Slovakia Flag STN EN 1992-1-1/NA:2008-06 (Slovakia)
    • Slovenia Flag SIST EN 1992-1-1:2005/A101:2006 (Slovenia)
    • Spain Flag UNE EN 1992-1-1/NA:2013 (Spain)
    • CS | Flag CSN EN 1992-1-1/NA:2016-05 (Czech Republic)
    • EN-GB | Flag BS EN 1992-1-1:2004/NA:2005 (United Kingdom)
    • Belarus Flag TKP EN 1992-1-1:2009 (Belarus)
    • Cyprus Flag CYS EN 1992-1-1:2004/NA:2009 (Cyprus)
  • 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
RF-CONCRETE Members - 1.1 General Data
  • 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
RF-CONCRETE Surfaces - 1.1 General Data
  • Determination of longitudinal, shear, and torsional reinforcement
  • Representation of minimum and compression reinforcement
  • Determination of neutral axis depth, concrete and steel strains
  • Design of member sections affected by bending about two axes
  • Design of tapered members
  • Determination of deformation in state II, for example according to EN 1992-1-1, 7.4.3
  • Considering tension stiffening
  • Considering creep and shrinkage
  • Precise breakdown of reasons for failed design
  • Design details of all design locations for better traceability of reinforcement determination
  • Options to optimize cross‑sections
  • Visualization of concrete section with reinforcement in 3D rendering
  • Output of complete steel schedule
  • Fire resistance design according to the simplified method (zone method) according to EN 1992‑1‑2 for rectangular and circular cross‑sections
  • Optional extension of the RF‑CONCRETE Members add‑on module with a nonlinear calculation of frameworks for the ultimate and serviceability limit states. The extension enables the design of potentially unstable structural components by means of a nonlinear calculation, or a nonlinear deformation analysis of 3D frameworks. Find more information under the product description of the RF-CONCRETE NL add‑on module.
Frequently Asked Questions (FAQ)
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?
Customer Projects
High-Rise Apartment Building Rendering | View 1 (© AS+P Albert Speer + Partner GmbH | Visualization: Architektur-Computergrafik B. C. Horvath)
High Point E - Franklin Village Mannheim, Germany
Kappl Village Center, Austria (© Dipl.-Ing.Rainer Zangerle)
Kappl Village Center, Austria
Completed Residential Building (© Maderas Besteiro)
Passive House Made of Timber in Lugo, Spain
Markas Headquarters During Construction (© ATP/Bause)
Markas Headquarters in Bolzano, Italy
"Intelligent Quarters" Hamburg After Completion
Intelligent Quarters Hamburg, Germany
Exterior View of Pastry Production and Storage Unit | © GH HERVOUET
Creation of a production and storage facility for pastries in Montbert, France
Pedestrian and Cyclist Bridge "Herzogsteg" in Eichstätt, Germany | © Bruno Klomfar
Pedestrian and Cyclist Bridge "Herzogsteg" in Eichstätt, Germany
Front View of Office Building with V-Shaped Steel Composite Columns | © Die Tragwerker GmbH
Office Building with Integrated Visitor Center and Parking Garage in Geiselbulach, Germany
Office Building of Stadtwerke Kirchheim unter Teck, Germany (Rendering) | © MEDIA 4D GmbH
Office Building of Stadtwerke Kirchheim unter Teck, Germany
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