Structural Engineering Software for Steel Structures

Structural Analysis & Design of Steel Structures

We are happy to support you with our reliable software in your structural steel projects. The structural engineering programs RFEM and RSTAB are the optimal solution for your structural analysis and design of steel structures. Complete successfully your projects, such as steel buildings, steel halls, scaffolding, bridges, or other steel structures.


Use RSTAB to design member structures and RFEM to design additional plate, wall, shell, and solid elements.

  • Steel Structure
  • Bionic Steel Structure
  • Steel Frame Structure

    The Dlubal structural analysis software RFEM (FEA) and RSTAB (frames and trusses) are well-established programs that many engineers rely on, also when performing structural analysis and design of steel halls.

    Discover the variety of the offered design add-ons which allow you to perform all required design checks for ultimate limit state, stability, and serviceability according to various standards. It is also possible to perform dynamic analysis as well as additional design checks for fire resistance and fatigue.

    Customer Project | Steel Frame Structure

  • Terminal Building
  • Extension of Continuous Casting Plant

    The Dlubal software RFEM and RSTAB are the best choice for you structural analysis and design of industrial plants. These are, for example, chemical plants, production halls, tanks, piping systems, large filters, and many others.

    Use RSTAB to design member structures and RFEM for additional plates, slabs, shells, and solid elements.

    Structural Analysis and Design of Industrial Plants

  • Spatial Steel Connection

    Even more complex 3D steel connections are not a problem for the structural FEA software RFEM. They can be modeled and structurally designed without any difficulty. You can model the connection with surface and solid elements.

    To consider the contact effects as well as the plastic material behavior, activate the nonlinear geometric and physical properties in RFEM.

    Structural Analysis and Design of Steel Connections

  • Facade Structure

    For facades that are not only attractive, but safe above all, use the Dlubal structural analysis programs RFEM (FEA) and RSTAB (member structures), as well as the stand-alone program RSECTION (cross-sections). They allow you to structurally design facade structures, such as glass facades, curtain walls, double facades, element facades, and many others.

    Use RWIND to simulate wind flows around buildings in a digital wind tunnel and to generate wind loads.

    Calculation of Facade Structures

  • Steel Offshore Structure

    With RFEM and RSTAB, you are on the safe side when processing offshore structures. The Dlubal programs provide many features for the structural analysis and design of drilling rigs, wind power plants, research platforms, and many other offshore structures.

    Discover the options for the calculation of structures consisting of several materials, dynamic analysis, stability analysis, fatigue design, generation of loads due to rotation, wind simulation, and other features.

    Offshore Structural Analysis Software

  • Steel Hall
  • Steel dome
  • Steel Bridge

    Many users rely on the structural analysis software RFEM (FEA) and RSTAB (frames and trusses) when analyzing and designing steel bridges.

    Use the powerful add-ons to generate, for example, influence lines, moving loads on members and surfaces, and more. You can also perform dynamic analyses and additional design checks of stability, ultimate limit state, serviceability limit state, as well as considering construction stages.

    Structural Analysis | Bridges

Structural FEM Analysis and Design

The successful structural analysis program RFEM 6 by Dlubal Software is the basis of a modular program family that you can customize and combine according to your precise requirements.

In the main program RFEM, you can define structures, materials, and loads of planar and spatial structural systems consisting of plates, walls, shells, and members. Furthermore, you can create combined structures as well as model solid and contact elements. Join our excited customers!

Structural Frame & Truss Analysis Software

Use our spatial frame & truss analysis software RSTAB 9 if you need a special solution tailored to beam, frame, and truss structures. Due to the special attention to such structures, it is even easier to use than the FEA software RFEM. RSTAB 9 has been the best choice for structural analysis and design of pure structural member models for many years.

Wind Simulation & Wind Load Generation

Do your structures have to withstand every gust of wind? Then it is best to use our stand-alone program RWIND 2. It is particularly recommended for complex model shapes. There are wind flows around all structures simulated in a digital wind tunnel.

You can easily import your generated wind loads acting on these objects into RFEM or RSTAB. Thus, you can complete your project there.

Stress Analysis of Member and Surface Structures

Use the Stress-Strain Analysis add-on for RFEM 6 / RSTAB 9 in your work. It performs general stress analysis by calculating the existing stresses and comparing the results with limit stresses.

Design of Members According to Various Standards

Select the Steel Design add-on for RFEM 6 / RSTAB 9 to keep your members stable and safe. The add-on designs steel members for the ultimate and serviceability limit state according to the standards

  • European Union EN 1993-1-1:2005 + AC:2009 (Eurocode 3)
  • United States AISC 360-16 (US standard)
  • Canada CSA S16-19 (Canadian standard)
  • India IS 800 | 2007-12 (Indian standard)
  • People's Republic of China GB 50017 | 2017-12 (Chinese standard)
  • Russia SP 16.13330 | 2017-02 (Russian standard)

Design of Steel Connections According to Finite Element Method

The Steel Joints add-on for RFEM 6 allows you to easily and efficiently analyze steel connections using an FE model.

Warping Torsion Second-Order Analysis with 7 Degrees of Freedom

The Torsional Warping (7 DOF) add-on for RFEM 6 / RSTAB 9 allows you to consider the cross-section warping as an additional degree of freedom when calculating members in RFEM and RSTAB.

Stability Analysis According to Eigenvalue and Incremental Method

To ensure the stability of your structures, opt for the Structure Stability add-on for RFEM 6 / RSTAB 9. It allows you to calculate critical load factors and the corresponding stability modes according to the eigenvalue method and the incremental method. Therefore, it is the perfect program for linear and nonlinear analysis of structural stability behavior.

Generation, Analysis, and Evaluation of Building Models

The Building Model add-on for RFEM 6 allows you to define and manipulate your building by means of stories. A big advantage is that you can adjust the stories in many ways afterwards. Information about the stories and the entire model (a center of gravity) is displayed in tables and graphics.

Consideration of Construction Stages

Stay on track of the construction process with the Construction Stages Analysis (CSA) add-on for RFEM 6. In RFEM, this allows you to consider the construction process of structures (member, surface, and solid structures). Do not concede any mistakes in your calculation of entire models! These may easily arise if the construction process is neglected. With this helpful add-on, you can analyze the influences and consider them right up to the structural design.

Model Optimization Using Artificial Intelligence (AI)

The two-part add-on Optimization & Costs / CO2 Emissions Estimation for RFEM 6 / RSTAB 9 is your reliable partner for model optimization. On the one hand, it gives you the suitable parameters for parameterized models and blocks via the artificial intelligence technology (AI) of the particle swarm optimization (PSO) in order to comply with the usual optimization criteria. On the other hand, it estimates the model costs or CO2 emissions by specifying unit costs or emissions per material definition for your structural model.

Structural Dynamic Analysis

To keep your buildings safe even under stormy conditions, the dynamic analysis add-ons for RFEM 6 / RSTAB 9 are here for you. Use them to perform seismic design, vibration analysis of buildings, machine foundation design, natural frequency analysis for bridges and chimneys, and many other dynamic calculations.

Section Properties of Any Cross-Section

Keep an eye on your cross-sections with the RSECTION 1 program and benefit from the respective extensions. RSECTION 1 enables you to determine the cross-section properties, analyze stresses, and perform plastic design checks of any cross-section.

Add the Effective Sections extension of RSECTION to gain a simple and efficient solution for determining cross-sections according to EN 1993‑1‑5 and EN 1993‑1‑3. Your cross-sections and calculated section properties can be easily exported to the programs RFEM and RSTAB.

Structures with Cold-Formed Cross-Sections

For cold-formed cross-sections, the extension RF‑/STEEL Cold-Formed Sections for RFEM 5 / RSTAB 8 and the cross-section properties software SHAPE‑THIN (as of Version 9 and higher) are the best solution. Use these programs to design general cold-formed sections according to EN 1993&8209;1‑3 and EN 1993‑1‑5.

Plastic Design of Steel Cross-Sections

RF-/STEEL Plasticity is an extension that allows you to adapt the RF‑STEEL EC3 add-on module for RFEM& 5 / RSTAB 8 even more precisely to your project. Using this extension, you can perform the plastic design of cross-sections according to the partial internal forces method (TSV) and simplex method.

Generation of Imperfections

Use the RF‑IMP/RSIMP add-on module for RFEM 5 / RSTAB 8 to generate equivalent geometric imperfections (equivalent loads) or a pre-deformed equivalent model.

Fatigue Design of Members

Use the RF‑/STEEL Fatigue Members add-on module for RFEM 5 / RSTAB 8 to perform fatigue design of steel members or set of members according to EN 1993‑1‑9.

Design of Steel Connections According to Analytical Method

For the design of steel and timber connections, RFEM 5 / RSTAB 8 provides you with further powerful add-on modules.

Design of Crane Runway Girders

The CRANEWAY stand-alone program allows you to calculate and perform all required design checks of crane runway girders according to Eurocode 3. You can optionally select between bridge or suspension cranes.

Plate Buckling Analysis and Design for Plates with or Without Stiffeners

Use the PLATE‑BUCKLING stand-alone program or the RF‑/PLATE‑BUCKLING add-on module for RFEM 5 / RSTAB 8 to perform buckling safety design of rectangular plates according to the standard EN 1993‑1‑5.

Data Exchange Interfaces

The structural analysis software provided by Dlubal Software can be integrated seamlessly into the Building Information Modeling (BIM) process. The large number of interfaces allows you to exchange the data of digital building models with RFEM or RSTAB. Use the Webservice (a programmable interface) to read or write the data from or to RFEM and RSTAB.

Support and Learning

Customer service is a fundamental pillar of the Dlubal Software company philosophy. We provide any necessary support you need to complete your daily work:

Contact

Contact Dlubal

Do you have any questions about our products or which are best suited for your design projects? Contact us via phone, email, chat or forum or search the FAQ page, available 24/7.

+420 227 203 320

[email protected]

Models to Download

Models to Download

Here you can find a variety of structural analysis models for steel structures, which you can use for training purposes or for your projects.

RFEM is a Reliable Partner for My Daily Tasks

"Many thanks for yesterday's Dlubal Info Day which was perfectly planned and held by very well-trained staff.

RFEM is a reliable partner for my daily tasks in building construction, just great!"

Why Dlubal Software?

Solutions

  • More than 100,000 users in 95 countries
  • One software package for all application areas
  • Free support by experienced engineers
  • Short learning time and intuitive / self-explanatory software
  • Excellent price-performance ratio
  • Flexible modular concept that can be extended as required
  • Scalable license system with single-user and network licenses
  • Respected and proven software in many well-known projects

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Online Training | English

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

Online Training 2 March 2023 9:00 AM - 1:00 PM CET

Event Invitation

International Mass Timber Conference

Conference 27 March 2023 - 29 March 2023

RFEM 5
RFEM

Main Program

Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids, and contact elements

Price of First License
3,950.00 EUR
RSTAB 8
Structural Frame Analysis Software RSTAB

Main Program

Structural engineering software for designing frame, beam, and truss structures, as well as performing linear and nonlinear calculations of internal forces, deformations, and support reactions

Price of First License
2,850.00 EUR
RFEM 5
RF-STEEL

Add-on Module

Stress analysis of steel surfaces and members

Price of First License
1,150.00 EUR
RFEM 5
RF-STEEL AISC

Add-on Module

Design of steel members according to the American standard ANSI/AISC 360

Price of First License
1,650.00 EUR
RFEM 5
RF-STEEL EC3

Add-on Module

Design of steel members according to Eurocode 3

Price of First License
1,650.00 EUR
RFEM 5
RF-STEEL IS

Add-on Module

Design of steel members according to the Indian standard IS 800:2007

Price of First License
1,650.00 EUR
RFEM 5
RF-STEEL GB

Add-on Module

Design of steel members according to the Chinese standard GB 50017-2003

Price of First License
1,650.00 EUR
RFEM 5
RF-STEEL CSA

Add-on Module

Design of steel members according to the Canadian standard CSA S16

Price of First License
1,650.00 EUR
RFEM 5
RF-STEEL AS

Add-on Module

Design of steel members according to the Australian standard AS 4100-1998

Price of First License
1,650.00 EUR
RFEM 5
RF-STEEL NTC-DF

Add-on Module

Design of steel members according to the Mexican standard NTC-DF 2004

Price of First License
1,650.00 EUR
RFEM 5
RF-STEEL SP

Add-on Module

Design of steel members according to the Russian standard SP 16.13330.2011

Price of First License
1,650.00 EUR
RFEM 5
RF-STEEL SANS

Add-on Module

Design of steel members according to the South African standard SANS 10162-1:2011

Price of First License
1,650.00 EUR
RFEM 5
RF-STEEL NBR

Add-on Module

Design of steel members according to the Brazilian standard ABNT NBR 8800:2008

Price of First License
1,650.00 EUR
RFEM 5
RF-STEEL HK

Add-on Module

Design of steel members according to the Code of Practice for the Structural Use of Steel 2011 (Buildings Department - Hong Kong)

Price of First License
1,650.00 EUR
RFEM 5
RF-STEEL SIA

Add-on Module

Design of steel members according to the Swiss standard SIA 263

Price of First License
1,650.00 EUR
RFEM 5
RF-STEEL Warping Torsion

Module Extension for RF-STEEL EC3 and RF-STEEL AISC

Warping torsion analysis according to the second-order theory with 7 degrees of freedom

Price of First License
950.00 EUR
RFEM 5
RF-STEEL Plasticity

Module Extension for RF-STEEL EC3

Plastic design of cross-sections according to the Partial Internal Forces Method (PIFM) and Simplex Method

Price of First License
950.00 EUR
RFEM 5
RF-STEEL Fatigue Members

Add-on Module

Fatigue design of members and sets of members according to EN 1993-1-9

Price of First License
1,250.00 EUR