In the Concrete Design add-on, you have the option to define an existing vertically oriented punching shear reinforcement. This is then taken into account in the punching shear design.
You can open the cross-sections in RSECTION using a direct connection, modify them there, and transfer them back to RFEM/RSTAB. Both RSECTION cross-sections and library cross-sections, with the exception of elliptical, semi-elliptical and virtual joists, can be opened and modified directly in RSECTION by clicking a button.
For example, you can thus adjust the reinforcement layout of user-defined RSECTION cross-sections directly in a local RSECTION environment in RFEM/RSTAB. This feature is currently only available for cross-sections with a uniform distribution type. The shear and longitudinal reinforcement defined for library cross-sections is not imported into RSECTION.
In the "Shear Reinforcement" tab, you can select the option "Cross-ties over free rebars with active selection in graphic". It allows you to arrange additional cross-ties on free rebars of the longitudinal reinforcement.
You can activate or deactivate the position of the cross-ties in the Info Graphic. The cross-ties are applied for the ultimate limit state design and the structural design checks. They are available for the design according to EN 1992‑1‑1.
Go to Explanatory VideoWhen designing connections, you can now also insert a new member as a component directly in the Steel Joints add-on. This will only be considered for the connection design. You can use the Weld and Fasteners components to connect to other members.
Furthermore, it is possible to use the Member Section and Member Editor components and arrange reinforcement elements on the inserted member, such as stiffeners and tapers.
Go to Explanatory VideoIn the Concrete Design add-on, you can design any RSECTION cross-section. Define the concrete cover, shear force, and longitudinal reinforcement directly in RSECTION.
After importing the reinforced RSECTION cross-section into RFEM 6 or RSTAB 9, you can use it for design in the Concrete Design add-on.
Go to Explanatory VideoUtilize this time-saving step! This feature allows you to define or edit the member reinforcement for several members or member sets at the same time.
Go to Explanatory VideoYou have the option to automatically design the existing surface reinforcement to cover the required reinforcement. You can also select whether to automatically define the reinforcement diameter or the member spacing.
Go to Explanatory VideoThe object types listed below can be graphically assigned to the elements of the structure modeled in the program.
- Nodal supports
- Member shear panels
- Local reductions of member cross-sections
- Member transverse stiffeners
- Member longitudinal welds
- Effective lengths
- Boundary conditions
- Line supports
- Loads
- Member support
- Punching reinforcements
- Mesh refinements
- Surface reinforcements
- Surface results adjustments
- Surface support
- Service classes
- Imperfections
- Design of tension, compression, bending, shear, torsion, and combined internal forces
- Consideration of a notch
- Design of compression perpendicular to the grain on the end and intermediate supports with (EC 5) and without reinforcement elements (fully threaded screws)
- Optional shear force reduction at the support (see the Product Feature)
- Design of curved and tapered members
- Consideration of higher strengths for similar components that are close together (factor ksys according to EN 1995‑1‑1, 6.6(1)-(3))
- Option to increase shear resistance for softwood timber according to DIN EN 1995‑1‑1:NA NDP to 6.1.7(2)
You can display the existing stresses and strains of a concrete cross-section and the reinforcement as a 3D stress image or 2D graphic. Depending on which results do you select in the result tree of the design details, the stresses or strains are displayed to you in the defined longitudinal reinforcement under the load actions or the limit internal forces.
You can specify the shear and longitudinal reinforcement individually for each member. In this case, there are various templates available for entering the reinforcement.
Enter the surface reinforcement directly on the RFEM level. In this case, you can select the defined area reinforcements individually. The usual editing functions Copy, Mirror, or Rotate are at your disposal when entering the surface reinforcement.
Within a member, you can define the integration width and effective slab width of T-beams (ribs) with different widths. The member is divided into segments. You can either grade or specify the transition between the different flange widths as linearly variable. Furthermore, the program allows you to consider the defined surface reinforcement as a flange reinforcement for the reinforced concrete design of a rib.
The Concrete Design add-on combines all CONCRETE add-on modules from RFEM 5 / RSTAB 8. Compared to these add-on modules, the following new features have been added to the Concrete Design add-on for RFEM 6 / RSTAB 9:
- Input of design-relevant specifications (effective lengths, durability, reinforcement directions, surface reinforcement) directly in the RFEM or RSTAB model
- Extensive input options for longitudinal and transverse reinforcement of members
- Detailed intermediate results for the design with specification of the equations of the applied standard for better traceability of the calculation
- New interaction diagram with interactive graphic for N, M, and M + N from cross-section design incl. output of the secant and tangent stiffness
- Design of the defined reinforcement in the ultimate limit state and serviceability limit state incl. graphical output of the design ratio for the respective component
- Automatic check of the defined reinforcement with regard to the construction or general reinforcement rules for reinforced member and surface components
- Cross-section design optionally with net values of the concrete section
- Design according to the Russian standard SP 63.13330
- Automatic import of internal forces from RFEM/RSTAB
- Ultimate limit state and serviceability limit state design checks
- User-defined limit values and parameters based on the integrated National Annexes (NA)
- 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 output of results integrated in RFEM/RSTAB; for example, design check ratios or required reinforcement
- Numerical results clearly arranged in tables and graphical display of the results in the model
- Integration of the output into the RFEM/RSTAB printout report
- 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
- Design of RSECTION cross-sections (see this Product Feature)
- Determination of deformation in state II; for example, according to EN 1992‑1‑1, 7.4.3, and ACI 318‑19 24.2.3, Table 24.2.3.5
- Considering tension stiffening
- Considering creep and shrinkage
- Fatigue design according to EN 1992‑1‑1, Section 6.8 (see this Product Feature)
- Simplified fire resistance design according to EN 1992‑1‑2 for Columns (Section 5.3.2) and Beams (Section 5.6) (see this Product Feature)
- Seismic design according to EC 8 (see this Product Feature)
- Precise breakdown of reasons for failed design
- Design details of all design locations for better traceability of reinforcement determination
- Optional cross-section optimization
- Visualization of concrete section with reinforcement in 3D rendering
- Creation of 2D interaction diagrams; for example, M-N diagram
- Visualization of section resistance in 3D interaction diagram
- Output of moment-curvature diagram
- Free definition of two reinforcement layers
- 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
- Free definition of provided surface reinforcement
- Result output in points of any selected grid
- Design with design moments at column edges
- Determination of deformation in state II; for example, according to EN 1992‑1‑1, 7.4.3, and ACI 318‑19 24.2.3, Table 24.2.3.5
- Considering tension stiffening
- Considering creep and shrinkage
- Fatigue design according to EN 1992‑1‑1, Chapter 6.8 (see this Product Feature)
- Design of a shear joint between the web and flange of ribs
- Optional pure slab or wall design of surfaces for a 2D model type
- Precise breakdown of reasons for failed design
- Design details of all design locations for better traceability of reinforcement determination
Is the design completed? Then you can lean back. The design ratios of the individual design checks (for example, ultimate limit state, serviceability limit state, or compliance with the construction rules) are displayed for you in a table. You can also find the required reinforcement listed in clearly arranged output tables. The program shows you all intermediate values in a comprehensible manner.
You can display the results of members as result diagrams on the respective member. Furthermore, you have the option to document the inserted reinforcement for longitudinal and stirrup reinforcement, including sketches, in accordance with current practice.
Select whether you want to display the results of surfaces as isolines, isosurfaces, or numerical values. In addition to the design check ratios, you can display the longitudinal reinforcement according to required, provided, and not covered reinforcement.
- Automatic import of internal forces from RFEM/RSTAB
- Optional consideration of creep
- Automatic determination of planned and unintentional eccentricity from the second-order analysis in addition to the existing eccentricity
- Determination of internal forces according to the linear static analysis and the second-order analysis
- Analysis of governing design locations along the column due to existing loading
- Output of the required longitudinal and stirrup reinforcement
- Summary of design ratios, including all design details
The program does a lot of work for you. The members to be designed are directly imported from RFEM/RSTAB.
You can easily define constructional properties of columns as well as other details for determining the required longitudinal and shear reinforcement. In this case, you can manually define the effective length factor ß or import it from the Structure Stability add-on.
Do you want to perform the bending failure design? To do this, analyze the governing locations of the column for axial forces and moments. For the shear resistance design, you can also consider the locations with extreme values of shear forces. During the calculation, you determine whether a standard design is sufficient or whether the column with the moments has to be designed according to the second-order theory. You can then determine these moments using the previously entered specifications. The calculation is divided into three parts:
- Load-independent calculation steps
- Iterative determination of governing loading taking into account a varying required reinforcement
- Safety determination of all acting internal forces, including the designed reinforcement
After a successful calculation, the results are displayed in clearly arranged tables. Each intermediate value is absolutely traceable, making the design checks transparent.
- Import of relevant information and results from RFEM
- Integrated, editable material and section library
- Sensible and complete presetting of input parameters
- Punching design on columns (all section shapes), wall ends, and wall corners
- Automatic recognition of the punching node position from an RFEM model
- Detection of curves or splines as a boundary of the control perimeter
- Automatic consideration of all slab openings defined in the RFEM model
- Construction and graphical display of the control perimeter
- Optional design with unsmoothed shear stress along the control perimeter that corresponds to the actual shear stress distribution in the FE model
- Determination of the load increment factor β via full-plastic shear distribution as constant factors according to EN 1992‑1‑1, Sect. 6.4.3 (3), based on EN 1992‑1‑1, Fig. 6.21N, or by a user‑defined specification
- Numerical and graphical display of results (3D, 2D, and in sections)
- Punching design of the slab without punching reinforcement
- Qualitative determination of the required punching reinforcement
- Design and analysis of the longitudinal reinforcement
- Complete integration of results in an RFEM printout report
You have two options in RFEM. On the one hand, you can determine the punching load from a single load (from column/loading/nodal support) and the smoothed or unsmoothed shear force distribution along the control perimeter. On the other hand, you can specify them as user-defined.
Calculate the design ratio of the punching shear resistance without punching reinforcement as a design criterion and the program will deliver you the corresponding result. In the case of exceeding the punching shear resistance without punching reinforcement, the program determines the required punching reinforcement as well as the required longitudinal reinforcement for you.
Is the design completed? Then sit back. Because the punching checks are presented for you clearly and with all result details. This allows you to precisely follow each result. The program shows you the provided and allowable shear stresses for the shear resistance of the slab in detail.
RFEM has even more to offer in this add-on. In the next result window, it lists the required longitudinal or punching reinforcement of each analyzed node. You can also find an explanatory graphic there. RFEM shows you the design results clearly displayed with values in the work window. You can integrate all result tables and graphics into the global printout report of RFEM. Thus, you can be sure of a clear documentation.
- Extensive library of rolled, parametric thin-walled and thick-walled cross-sections
- Extensible library for material properties
- Import of dxf files
- Cross-section properties of thin-walled or thick-walled cross-sections
- Ideal section properties of cross-sections consisting of different materials
- Stress analysis
- Plastic capacity design with interaction of internal forces according to the Simplex Method
- Design of reinforcement and the subsequent design of concrete cross-section in the Concrete Design add-on (see Product Feature)
- Saving cross-sections as a block
- Scripting with JavaScript
- Interface with MS Excel for exporting tables
- Connection to Webservice & API (for example, optional creation of cross-section and access to result tables)
- Printout report
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.
- Full integration in RFEM/RSTAB with import of geometry and load case data
- Automatic selection of members for design according to specified criteria (e.g. only vertical members)
- In connection with the extension EC2 for RFEM/RSTAB, you can perform the design of reinforced concrete compression elements according to the method based on nominal curvature in compliance with EN 1992 -1‑1:2004 (Eurocode 2) and the following National Annexes:
-
DIN EN 1992-1-1/NA/A1:2015-12 (Germany)
-
ÖNORM B 1992-1-1:2018-01 (Austria)
-
Belgium NBN EN 1992-1-1 ANB:2010 for design at normal temperature, and NBN EN 1992-1-2 ANB:2010 for fire resistance design (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)
-
- In addition to the National Annexes (NA) listed above, you can define a specific NA, applying user-defined limit values and parameters.
- Optional consideration of creep
- Diagram-based determination of buckling lengths and slenderness from the restraint ratios of columns
- Automatic determination of ordinary and unintentional eccentricity from additionally available eccentricity according to the second-order analysis
- Design of monolithic structures and precast elements
- Analysis with regard to the standard reinforced concrete design
- Determination of internal forces according to the linear static analysis and the second-order analysis
- Analysis of governing design locations along the column due to existing loading
- Output of required longitudinal and stirrup reinforcement
- Fire resistance design according to the simplified method (zone method) according to EN 1992-1-2 allowing the fire resistance design of brackets.
- Fire resistance design with optional longitudinal reinforcement design according to DIN 4102-22:2004 or DIN 4102-4:2004, Table 31
- Longitudinal and link reinforcement proposal with graphic display in 3D rendering
- Summary of design ratios, including all design details
- Graphical representation of relevant design details in RFEM/RSTAB work window
After opening the module, the materials and surface thicknesses defined in RFEM are preset. The nodes to be designed are automatically recognized but can also be modified by the user.
It is possible to consider openings in the area with risk of punching shear. The openings can be transferred from RFEM or specified only in RF‑PUNCH Pro so they do not effect the stiffnesses of the RFEM model.
The parameters of the longitudinal reinforcement are the number and direction of the layers and the concrete cover, specified separately for the top and bottom of the slab on a surface-by-surface basis.
The next input window allows you to define all additional details for nodes of punching shear.
The module recognizes the position of the punching node and automatically sets, whether the node is located in the center of the slab, on the slab edge or in the slab corner.
In addition, it is possible to set punching load, load increment factor β, and the existing longitudinal reinforcement. Optionally, the minimum moments can be activated for determining the required longitudinal reinforcement and enlarged column head.
To facilitate orientation, a slab is always displayed with the corresponding node of punching shear. You can also open the design program by HALFEN, a German producer of shear rails. All RFEM data can be imported to this program for further easy and effective processing.
- Import of relevant information and results from RFEM
- Integrated, editable material and section library
- 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:
-
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)
-
In addition to the National Annexes (NA) listed above, you can define a specific NA, applying user‑defined limit values and parameters.
- Sensible and complete presetting of input parameters
- Punching design on columns, wall ends, and wall corners
- Optional arrangement of an enlarged column head
- Automatic recognition of the position of the punching node from the RFEM model
- Detection of curves or splines as boundary of the control perimeter
- Automatic consideration of all slab openings defined in the RFEM model
- Structure and graphical display of the control perimeter before calculation starts
- Qualitative determination of punching shear reinforcement
- Optional design with unsmoothed shear stress along the control perimeter that corresponds to the actual shear stress distribution in the FE model
- Determination of the load increment factor β via full-plastic shear distribution as constant factors according to EN 1992‑1‑1, Sect. 6.4.3 (3), based on EN 1992‑1‑1, Fig. 6.21N or by user‑defined specification
- Integration of design software by Halfen, a producer of shear rails
- Numerical and graphical display of results (3D, 2D, and in sections)
- Punching shear design with or without punching shear reinforcement
- Optional consideration of minimum moments according to EN 1992‑1‑1 when determining longitudinal reinforcement
- Design or analysis of longitudinal reinforcement
- Complete integration of results in the RFEM printout report