Structural Frame & Truss Analysis Software RSTAB 9 | New Features

Structural Engineering Analysis & Design Software

We are constantly developing the Dlubal structural analysis software, so you can benefit from the new features. Use the successful structural frame & truss analysis software RSTAB for your design of beam, frame, or truss structures consisting of steel, reinforced concrete, timber, aluminum, or other materials.
With RSTAB, you can easily and quickly define a structural model and then calculate the internal forces, deformations, and support reactions. There are design add-ons at your side that you can use to consider the material- and standard-specific requirements.

  • RSTAB 9 for Frames and Trusses

New Features and Tools for Efficient 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!"

Structural Analysis Models to Download

Models to Download

Select numerous structural models to utilize them for training purposes or for your projects.

The Dlubal programs always focus on simple and efficient operation. That's why there are numerous new features implemented in RSTAB 9, which facilitate your daily work with the structural analysis program. On this page, we present a selection of the new features.


Integration of All Add-ons

Discover the advantages of working with the various add-ons for RFEM 6 and RSTAB 9. All add-ons are integrated in the programs. This allows seamless interaction between the individual program parts and ensure that your analysis and design runs smoothly. Examples for this is the determination of the ideal overturning moment of timber beams using the "Torsional Warping (7 DOF)" add-on or the consideration of staggered form-finding processes by means of the "Construction Stages Analysis (CSA)" add-on, and so on.


Output of Design Check Formulas

With Dlubal Software, you always have an overview, regardless of whether your projects are from the reinforced concrete, steel, timber, aluminum, or other industry. The program clearly displays the design check formulas used in your design (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

Make your work with members easier. For members and member sets with the same properties, you can define representatives for model organization, design, and documentation.
The results of these representatives can be easily displayed in the result tables.


Unit Stresses of Sections

Make sure nothing collapses on you: To estimate the resistance of member cross-sections, it is possible to display the unit stresses for the unit loads N = 1 kiP, My = 1 kiP/ft, and so on, when selecting the cross-sections.


Imperfection Cases

The organization of imperfections is efficiently solved by imperfection cases. The cases allow you to describe an imperfection from local imperfections, equivalent loads, initial sway via table (new), a static deformation, a buckling mode, a dynamic mode shape, or a combination of all these types (new).


Design Situations

Use design situations to support your design checks. They allow you 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

Discover the new functions of 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
Go to Explanatory Video

Modern Online Licensing System

Dlubal Software supports its customers with their construction planning worldwide. 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

Navigate easily and intuitively. Use the script manager to control all input elements using JavaScript via the console or saved scripts.


Improved Printout Report

Discover the fundamentally revised and optimized printout report. It offers you the following innovations, among other things:

  • 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
Go to Explanatory Video

Faster Calculation

Do you have to calculate multiple load combinations in your models? Then several solvers (one per core) are initiated in parallel, each of which calculates a load combination. This ensures a better utilization of the cores and thus faster calculations.


Improved Result Diagram Window

Discover the new features in the result diagram window:

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

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 perform your own design checks, effective modeling of parametric structures, and optimization and automation processes using the programming languages Python and C#. Dlubal Software makes your work easier and more convenient. Check it out now!


Extension of IFC Interface for Improved Open BIM Process

There are also improvements in the data exchange to make your work process easier. 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)

Discover the new features in RFEM and RSTAB for the determination of wind loads using RWIND:

  • Useful 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
  • Comprehensive 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)

Import of Construction Site for Load Determination

Always keep an eye on the natural conditions of your construction site by defining it on a digital map. The address data (including the altitude) as well as the snow load zone, wind zone, and seismic zone are imported automatically. The load wizard also uses this data.

The map is also displayed with the construction site marked in the "Model Parameters" tab.


Definition of Hotkeys

Would you like to make your work process more efficient? Then use hotkeys for various commands. This way, you can execute the frequently used commands 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 a hotkey to them.


Assigning Loads to New Load Case

This feature is useful for your daily work! For member loads, surface loads, and so on, you can retroactively move loads into another load case.

Mass Loads

There is also an innovation in the load catalog that will interest you: The Mass Loads type has been added to the catalog!

Clipping Box

Keep track of what's really relevant to your project. In addition to the clipping plane, you can now define a clipping box. This allows you to hide the irrelevant objects around a focal point.

Specification of Element Types

Use the specification of the element types for members, surfaces, solids, and so on, to facilitate your input (such as member nonlinearities, member stiffnesses, design supports, and many others).

Dlubal Center

The Dlubal Center ensures that your planning goes quickly and efficiently. Among other things, your projects and model files are managed here in a central location. Detailed information and graphics make it easier for you to assign all models and thus enable uncomplicated, clear processing of the project. Furthermore, your customer data including the licensed programs and add-ons is organized in the Dlubal Center.


Global Management of All Add-ons

Compile the right add-ons for your individual project. All add-ons are directly integrated in the program and, like all required design standards for the respective materials, are managed centrally.


Global Model Parameters

Define as many global model parameters as you want. You can also use them in the documentation.


Structured Data Navigator

You can now work even more efficiently with the Data Navigator. Its clear structure makes it easy to use. The navigator contains assignable types for objects as well as a hyperlink function that allows you to quickly jump to the assigned elements of an object.


Statistics for Sections

Keep an eye on your cross-sections. Useful statistical information, such as total length, total volume, total weight, and so on, is displayed for all cross-sections used in your project.


New Section Distribution Types for Members

There are seven new cross-section distribution types 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
  • Duopitch
  • Offset at both sides
  • Offset at start of member
  • Offset at end of member

Cross-Section Library with Short Text Search

Save your time in the cross-section library and use a short text search to quickly find a desired cross-section or cross-section series.

Structure Modification Object

Use the new useful structure modification object to modify or deactivate stiffnesses, nonlinearities, and objects in a clear and load case-dependent way.

Using and Creating Model Blocks

When working with model blocks, the Dlubal Center helps you. It contains a database of blocks based on the JavaScript code. You can also create and use new blocks, including loading and design.

Result Combinations Using Parenthesis Terms

When creating result combinations, you can now also use parenthesized terms.

Individual Global Calculation Parameters for Load Cases and Load Combinations

Use the new structural analysis setting to provide load cases and load combinations with individual global calculation parameters.

New Combination Wizard

Use the new combination wizards to make your work easier. They 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

To make your work effiecient and quick, we have added new features to the load wizard. These include locking new members, smoothing occurring concentrated loads, and considering eccentricities as well as cross-section distribution.

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

Another useful features in the Load Wiyard is the determination of member loads from area loads by defining surfaces (using corner nodes) and cells in a definition.

Global Organization of User-Defined Coordinate Systems

A change in favor of more efficient work withh the program: Your user-defined coordinate systems for input and analysis purposes are now organized globally under the guide objects.

Organization of Different Object Snaps

To facilitate your work, you can now define several object snaps for different operating tasks.

Object Selection as New Guide Object

This feature creates more order. The new guide object "Object Selection" allows for generic filtering of various objects:

  • Basic Objects
  • Types for Nodes
  • Types for Lines
  • Types for Surfaces
  • Load Wizards
  • Loads
  • Guide Objects

The object selection provides you with many interactive application possibilities at various program locations.


Tabular Reference Description for Dimension Lines

A clear arrangement of the Dlubal programs has a high priority. Therefore, the reference descriptions of incremental dimension lines are now given in tabular form for a better overview.

Implementation of SAF Format

Take your structural design one step further. RFEM 6 and RSTAB 9 support now a new file format for structural design, Structural Analysis Format (SAF). For this, both programs allow for the import as well as the export. SAF is a file format based on MS Excel, intended to facilitate the exchange of structural analysis models between different software applications.



To facilitate the operation of the Dlubal programs, the new ViewCube in the graphic provides an intuitive selection of the correct model projection.

Tabular Unit Settings

With a good visual organization, the work goes on more easily. You can now change certain units in the form of a tabular user interface.

New File Formats for Export

An improvement that will benefit your smooth workflow: You can now export your RFEM and RSTAB models in XML, SAF, and VTK (results from RWIND).

New Local Axis Definition for Members

The improvements in the international context are not neglected either. A new local axis specification (y upwards) has been added for the Anglo-American region.

New Graphic Printout Option with Preview Image

Various new options make it easier for you to print graphics in the future. Your new graphic printout dialog now includes:

  • Library-controlled mass print function for all program graphics
  • User-defined print area selection
  • 3D function for later 3D functionalities in the final PDF
  • Automatic separation of images for scale prints and the function for displaying an overview image

Creation of Parts Lists

Benefit from better organization. It is now possible for you to create cross-section and material-based parts lists.

Using Log Files

Your satisfaction with the Dlubal programs is our top priority. The new program generation RFEM 6 and RSTAB 9 allows you to send log files to our company via online registration. We use this to better analyze and improve our programs for your applications. By default, this setting is activated under the program options. However, you can rescind your consent in the programs at any time.


List Box for Organized Interactive Table Structure

An innovation for more efficiency when using tables: The tables are now sorted in two list boxes, which allows you to easily navigate the various input and result tables.


Result Table Manager

There are also optimizations for the clear arrangement of your results. To better display the results, you can reduce the displayed columns and rows with the new Result Table Manager.

Material Type Control

Keep track of your design checks. The material type of a material is used to clearly define the design-relevant properties.

Improved Overview in Material Library

Discover what's new in your material library. The material series are now listed here. It is also possible to directly find your desired material in the library by 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 beam structures
  • 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


2,850.00 EUR

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

Design of Massive RSECTION Sections in RFEM 6

Design of Massive RSECTION Sections in RFEM 6

Webinar 14 September 2023 2:00 PM - 3:00 PM CEST

Automated Workflow with JavaScript in RFEM 6

Automated Workflow with JavaScript in RFEM 6

Webinar 5 September 2023 2:00 PM - 3:00 PM CEST

Design of FRC Structural Elements Using Concrete Design Add-On

Design of FRC Structural Elements in Concrete Design Add-On

Webinar 31 August 2023 2:00 PM - 3:00 PM CEST

Online Training | English

Eurocode 5 | Timber Structures According to DIN EN 1995-1-1

Online Training 31 August 2023 8:30 AM - 12:30 PM CEST

Online Training | English

Eurocode 3 | Steel Structures According to DIN EN 1993-1-1

Online Training 3 August 2023 8:30 AM - 12:30 PM CEST

Shape Optimization of Tapered Members

Shape Optimization of Tapered Members

Webinar 28 July 2023 10:00 AM - 11:00 AM CEST

Member and Surface Design of Timber Components in RFEM 6

Member and Surface Design of Timber Components in RFEM 6

Webinar 20 July 2023 2:00 PM - 3:00 PM CEST

Online Training | English

Eurocode 5 | Timber Structures According to DIN EN 1995-1-1

Online Training 22 June 2023 8:30 AM - 12:30 PM CEST

3D Model of the Vocational School in RFEM (© Eggers Tragwerksplanung GmbH)

Special Solutions

First, the two-part Optimization & Costs / CO2 Emission Estimation add-on finds suitable parameters for parameterized models and blocks via the artificial intelligence (AI) technique of particle swarm optimization (PSO) for compliance with common optimization criteria. Second, this add-on estimates the model costs or CO2 emissions by specifying unit costs or emissions per material definition for the structural model.

Price of First License
1,650.00 EUR
Pushover Analysis

Dynamic Analysis

Earthquakes may have a significant impact on the deformation behavior of buildings. A pushover analysis allows you to analyze the deformation behavior of buildings and compare them with seismic actions. Using the Pushover add-on, you can analyze the seismic actions on a particular building and thus assess whether the building can withstand the earthquake.

Price of First License
1,450.00 EUR