FEA Software RFEM 6 | New Features

Structural Analysis & Engineering Software

The FEA program RFEM allows for quick and easy modelling, structural and dynamic analysis, as well as design of models with member, plate, wall, folded plate, shell and solid elements.

Thanks to the modular software concept, you can enhance the basic program RFEM with the corresponding modules and thus use it in a wide variety of areas.

  • FEA Software RFEM 6

New Features and Tools for Effective Work

Really Great Software

"I take this opportunity to thank you and your team for a really great software. After so many years of utilizing your software, we still see every day what your product is able to do and we really enjoy the application!

We look forward to more years together!"

In RFEM 6 numerous new features have been implemented, which make daily work with the FEA program easier and more effective. On this page, we present a selection of new features.


Import of Construction Site for Load Determination

The construction site can be specified on a digital map. In addition to the address data (including the altitude), the snow load, wind speed, and seismic zones are imported automatically. These data are, in turn, used by the load wizards.

Furthermore, the map is displayed with the construction site marked in the "Model Parameters" tab.


Integration of All Add-ons

All add-ons are automatically integrated in the programs RFEM 6 and RSTAB 9. This allows the individual program parts to interact (for example, determination of the ideal overturning moment of timber beams using the "Torsional Warping [7 DOF]" add-on or consideration of staggered form-finding processes by means of the "Construction Stages Analysis [CSA]" add-on, and so on).


Output of Design Check Formulas

For designs in reinforced concrete, steel, timber, aluminum structures, and so on, the used design check formulas are displayed in detail (including a reference to the used equation from the standard). These design check formulas can also be included in the printout report.

Member and Member Set Representatives

For members and member sets with the same properties, you can define representatives for model organization, design, and documentation.

The results of the representatives can be displayed in the result tables.


Unit Stresses of Sections

For member sections, the unit stresses (related to N = 1 kiP, My = 1 kiP/ft, and so on) can be displayed in order to be able to estimate their resistance.


Load Transfer Surface

A surface with the stiffness type "Load Transfer" has no structural effect. It can be used to consider the loads from surfaces that have not been modeled (for example, facade structures, glass surfaces, trapezoidal roof sections, and so on).


Surface Contact

A surface contact serves to describe a contact definition between two or more surfaces that are at a distance from each other. It is no longer necessary to create a contact solid between surfaces.


Rigid Link

You can easily define rigid links between two lines or surface edges.


Imperfection Cases

Imperfection cases are used to organize imperfections. The cases allow an imperfection description from local imperfections, notional loads, initial sway via table (new), a static deformation, a buckling mode, a dynamic eigenmode, or a combination of all these types (new).


Design Situations

Design situations are used to collect the relevant load situations for design. For example, you can define a design situation for the design of different materials.


Extension of Snow and Wind Load Wizards

The following functions have been added to the snow and wind load wizards:

  • Loading of hybrid models made of members and surfaces (RFEM only)
  • Connection to the Geo-Zone Tool (depending on the global construction site definition)
  • Switching off surface sides

Modern Online Licensing System

The modern online licensing system allows licenses of RFEM, RSTAB, and other programs to be distributed all over the world and assigned to the respective users via the Dlubal Account.


Script Manager

The script manager can be used to control all input elements using JavaScript via the console or saved scripts.


Improved Printout Report

The printout report has been fundamentally revised. Among other things, the following have been optimized:

  • Quick creation due to non-modal printout report environment (parallel work in program and report possible)
  • Interactive modification of chapters as well as creation of new user-defined chapters
  • Import of PDFs, formulas, 3D graphics, and so on
  • Output of the design check formulas used in the design (including a reference to the used equation from the standard)
  • Modern printout report design

Faster Calculation

For models requiring the calculation of multiple load combinations, several solvers (one per core) are initiated in parallel. Each solver then calculates a load combination. This leads to better utilization of the cores and thus, faster calculations.


Improved Result Diagram Window

These features have been added to the result diagram window:

  • Parallel work in the result diagram window and model
  • Optional overlapping display of results (for example, several similar structural components in one image)


Webservice and API

Technology takes you further, also in your daily work with RFEM / RSTAB. The new API technology Webservice allows you to create your own desktop or web-based applications by controlling all objects included in RFEM 6 / RSTAB 9. Entire libraries and numerous functions are available to you. Thus, you can easily develop your own design checks, effective modeling of parametric structures, as well as optimization and automation processes using the programming languages Python and C#. Dlubal Software makes your work easier and more convenient. Convince yourself!


Extension of IFC Interface for Improved Open BIM Process

In addition to the import of IFC 2x3 (Coordination View & Structural Analysis View), the import and export of IFC 4 (Reference View & Structural Analysis View) is now supported.


Wind Simulation (RFEM or RSTAB Environment)

The following features have been added to RFEM and RSTAB for determining wind loads using RWIND:

  • Load wizards for generating wind load cases with different flow fields in different wind directions
  • Wind load cases with freely assignable analysis settings including a user-defined specification of the wind tunnel size and wind profile
  • Display of the wind tunnel with input wind profile and turbulence intensity profile
  • Visualization and use of the RWIND simulation results
  • Global definition of a terrain (horizontal planes, inclined plane, table)

New Model Types

The following new model types have been added to RFEM 6:

  • 2D | XZ | 3D
  • 2D | XY | 3D
  • 1D | X | 3D

These model types allow modeling in a 1D or 2D environment (with optional cross-section rotation in all directions), but allow a three-dimensional load application and resulting 3D internal forces.


Definition of Hotkeys

It is possible to assign hotkeys to a variety of commands. This way, frequently used commands can be executed quickly and easily with a previously assigned key combination.

By the way, this also works for your computer mouse. If it has other buttons in addition to the left, right, and middle buttons, you can assign an abbreviation to them.


Assigning Loads to New Load Case

For member loads, surface loads, and so on, you can retroactively move loads into another load case.

Mass Loads

The Mass Loads type has been added to the load catalog.

Opening Loads

It is now possible to define opening loads (for example, wind loads) for flat loads on openings.

Clipping Box

In addition to the clipping plane, you can define a clipping box to hide irrelevant objects around a focal point.

Newton-Raphson for Calculations According to Second-Order Analysis

Two additional solution algorithms have been added for calculations according to the second-order analysis:
  • Newton-Raphson
  • Newton-Raphson with postcritical analysis

Extended Specification of Nodal Mesh Refinements

Options for FE length arrangement have been added to the definition of nodal mesh refinements:
  • Radial
  • Gradually
  • Combined

Specification of Element Types

Input is simplified by specifying the element types for members, surfaces, solids, and so on (that is, member nonlinearities, member stiffnesses, design supports, and many others).


Dlubal Center

Among other things, the Dlubal Center manages the projects and model files in a central location. Detailed information and graphics facilitate the assignment of all models for quick order processing. In addition, customer data including licensed programs and add-ons, and so on, are organized in the Dlubal Center.


Global Management of All Add-ons

All add-ons are directly integrated in the program and, like the design standards for the respective materials, are managed centrally.


Global Model Parameters

You can define any global model parameters. They can also be used in the documentation.


Structured Data Navigator

The Data Navigator is clearly structured and contains assignable types for objects including a hyperlink function for quickly jumping to the assigned elements of an object.

New Options for Variable Surface Thicknesses

There are three new options available for defining variable surface thicknesses:

  • 2 Nodes and Direction
  • 4 Surface Corners
  • Circle

Statistics for Sections

For all cross-sections used, statistical information such as total length, total volume, total weight, and so on is displayed.


New Section Distribution Types for Members

Seven new cross-section distribution types are available for members (including arrangement function for aligning to a straight edge):

  • Tapered at both sides
  • Tapered at start of member
  • Tapered at end of member
  • Saddle
  • Offset at both sides
  • Offset at start of member
  • Offset at end of member

Cross-Section Library with Short Text Search

A short text search has been added to the cross-section library in order to find a desired cross-section or cross-section series even more quickly.


Set of Lines, Surfaces, and Solids

In addition to sets of members, you can also combine lines, surfaces, and solids into sets, for example, to consider them as uniform elements in the design.


New Thickness Object

A thickness object has been added to describe the surface thicknesses. It can be used for several surfaces. If the thickness of this object is modified, all assigned surface thicknesses are adjusted accordingly in one step.

Member Rotation in Direction of Local Surface Axis

The member rotation of a member can now be defined in the direction of the local surface axes of a surface which, for example, is inclined in space.

Structure Modification Object

With the new structure modification object, you can modify or deactivate stiffnesses, nonlinearities, and objects in a clear and load case-dependent manner.

Surface Eccentricity with Relative Orientation to Another Element

It is now possible to define the surface eccentricity depending on the edge of another element (a member or a surface).

Additional Types for Surface Stiffness Modification

For modifying surface stiffnesses, two new types are now available:
  • Multiplication factor of total stiffness
  • Multiplication factors of partial stiffnesses, weights, and masses

Result Combinations Using Parenthesis Terms

When creating result combinations, it is now also possible to use parenthesized terms.

Individual Global Calculation Parameters for Load Cases and Load Combinations

Load cases and load combinations can now be provided with individual global calculation parameters using the new structural analysis setting.

Combination Wizard Based on Automatic or Semi-Automatic Generation Conforming to Standards

The new combination wizards fill the design situations with load or result combinations on the basis of an automatic or semi-automatic generation conforming to the standards.

Improved Load Wizard

New functions for locking new members, smoothing occurring concentrated loads, and considering eccentricities and cross-section distribution have been added to the load wizard.

Determination of Member Loads from Surface Loads by Specifying Cells and Surfaces

In the load wizard, it is now possible to determine member loads from area loads by defining surfaces (using corner nodes) and cells.

Eccentricity of Nodal and Member Loads

It is now possible to consider the eccentricities for nodal and member loads.

Load Options for Member Sets, Line Sets, Surface Sets, and Solid Sets

With the introduction of line sets, surface sets, and solid sets, new load options have also been added for loading these sets.

Global Organization of User-Defined Coordinate Systems

The user-defined coordinate systems for input and analysis purposes are now organized globally under the guide objects.

Organization of Different Object Snaps

Now, you can define several object snaps for different operating tasks.

Object Selection as New Guide Object

The new guide object "Object Selection" allows for generic filtering of:
  • Basic objects
  • Types for nodes
  • Types for lines
  • Types for surfaces
  • Load wizards
  • Loads
  • Guide objects
The object selection provides many interactive application possibilities at various program locations.

Tabular Reference Description for Dimension Lines

The reference descriptions of incremental dimension lines are now given in tabular form for a better overview.

Implementation of SAF Format

A new file format for structural design, Structural Analysis Format (SAF), is now also supported. Both import and export are possible in RFEM 6 and RSTAB 9. SAF is a file format based on MS Excel, which is intended to facilitate the exchange of structural analysis models between different software applications.



The new ViewCube in the graphic provides an intuitive selection of the correct model projection.

Tabular Unit Settings

It is now possible to change certain units in the form of a tabular user interface.

New File Formats for Export

It is possible to export the RFEM and RSTAB models in XML, SAF, and VTK (results from RWIND).

New Local Axis Definition for Members

A new local axis specification (y upwards) has been added for the Anglo-American region.

New Graphic Printout Option with Preview Image

The new graphic printout dialog box now includes:
  • a library-controlled mass print function for all program graphics,
  • a user-defined print area selection,
  • a 3D function for later 3D functionalities in the final PDF,
  • an automatic separation of images for scale prints and a function for displaying an overview image.

Creation of Parts Lists

It is now possible to create cross-section and material-based parts lists.

Using Log Files

The new program generation RFEM 6 and RSTAB 9 allows for sending log files to our company via online registration. This allows us to better analyze and improve our programs for your applications. By default, this setting is activated under the program options. You can rescind your consent in the programs at any time.


List Box for Organized Interactive Table Structure

The tables are now sorted in two list boxes, which allows you to easily navigate the various input and result tables.

Result Table Manager

To better display the results, the displayed columns and rows can be reduced with the new Result Table Manager.

Material Type Control

The material type of a material clearly defines the design-relevant properties.

Determination of Independent Surface Parts for Intersections

When creating surface intersections, independent surface components are now created instead of surface components.

Improved Overview in Material Library

The material series are now listed in the material library. It is also possible to find the desired material in the library directly, using the free text search function.



  • Fast modeling thanks to sophisticated input technology
  • One program for all types of structures from single-span girders to complex 3D shell structures or NURBS solids
  • Fast calculation using the multiprocessor technology
  • Support of national and international standards
  • Quick generation of a professional-looking printout report
  • Automatic generation of wind loads using the integrated CFD wind simulation (RWIND required)
  • API via web service
  • Globally recognized program with over 100,000 users
  • Professional customer support provided by more than 20 support engineers


4,450.00 EUR

The prices apply to the use of the software in all countries.

Online Training | English

RFEM 6 | Students | Introduction to Reinforced Concrete Design

Online Training 12 December 2022 4:00 PM - 5:00 PM CET

Online Training | English

RFEM 6 | Basics

Online Training 19 January 2023 9:00 AM - 1:00 PM CET

Online Training | English

RFEM 6 | Students | Introduction to Timber Design

Online Training 25 November 2022 4:00 PM - 5:00 PM CET

Online Training | English

RFEM 6 | Students | Introduction to Reinforced Concrete Design

Online Training 21 November 2022 4:00 PM - 5:00 PM CET

Online Training | English

RFEM 6 | Students | Introduction to Reinforced Concrete Design

Webinar 21 November 2022 4:00 PM - 5:00 PM CET

Online Training | English

RFEM 6 | Students | Introduction to Steel Design

Online Training 10 November 2022 4:00 PM - 5:00 PM CET

Online Training | English

RFEM 6 for Students | USA

Online Training 8 November 2022 1:00 PM - 4:00 PM EDT

Online Training | English

RFEM 6 | Students | Introduction to FEM

Online Training 27 October 2022 4:00 PM - 7:00 PM CEST

Online Training | English

RSECTION | Students | Introduction to Strength of Materials

Online Training 19 October 2022 4:00 PM - 5:30 PM CEST

Online Training | English

RFEM 6 | Students | Introduction to Member Design

Online Training 12 October 2022 4:00 PM - 7:00 PM CEST

Online Training | English

RFEM 6 | Basics

Online Training 7 October 2022 9:00 AM - 1:00 PM CEST

Timber Structure Design in RFEM 6 and RSTAB 9

Model and Design Timber Structures in RFEM 6 and RSTAB 9

Webinar 17 August 2022 10:00 AM - 11:00 AM CEST

Member, Surface, and Solid <br> Stress-Strain Analysis in RFEM 6

Member, Surface, and Solid Stress-Strain Analysis in RFEM 6

Webinar 26 July 2022 2:00 PM - 3:00 PM EDT

Online Training | English

RFEM 6 for Students | USA

Online Training 8 June 2022 1:00 PM - 4:00 PM EDT

Online Training | English

RFEM 6 | Students | Introduction to Timber Design

Online Training 25 May 2022 4:00 PM - 5:00 PM CEST

Online Training | English

RFEM 6 | Students | Introduction to Reinforced Concrete Design

Online Training 19 May 2022 4:00 PM - 5:00 PM CEST

Online Training | English

RFEM 6 | Students | Introduction to Steel Design

Online Training 4 May 2022 4:00 PM - 5:00 PM CEST

Online Training | English

RFEM 6 | Basics

Online Training 29 April 2022 9:00 AM - 1:00 PM CEST

Online Training | English

RFEM 6 | Students | Introduction to FEM

Online Training 27 April 2022 4:00 PM - 7:00 PM CEST