RSTAB - Structural Frame & Truss Analysis Software
Structural Engineering Analysis & Design Software
The 3D structural frame analysis program RSTAB is the ideal tool for the 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. For further design, there are various add‑on modules available, considering structural data of specific materials and standards.
Linear and Nonlinear Structural Analysis
The model is calculated linearly according to the linear static analysis or nonlinearly according to the large deformation analysis. In order to determine internal forces, results can be superimposed in combinations.
All member types can be calculated according to the linear static, second-order or large deformation analysis. The selection option is available for load cases and load combinations. Further calculation parameters are individually adjustable for load cases, load and result combinations. Thus, high flexibility regarding the calculation method and detailed specifications is ensured.
Loads can be applied incrementally. The increment option is especially useful for calculations according to the large deformation analysis. For members, you can consider shear deformations and apply internal forces to a deformed or undeformed structural system. In addition, RFEM allows you to perform post‑critical analysis.
It is possible to calculate independent substructures. Deformation development is displayed in a diagram during the calculation. In this way, you can easily evaluate the convergence behavior.
Imperfections can be applied to members, member lists, and continuous members. The numbering of members is not important. The SUPER-RC add-on module enables combinations of load cases across different models i.e. files. Thus, different construction stages can be determined.
Do you have any questions about our products or need advice on selecting the products needed for your projects?
Contact us via our free e-mail, chat, or forum support or find various suggested solutions and useful tips on our FAQ page.
Dlubal Webinar: Design of Steel Constructions according to EC 3 | Part 2: Stability Analysis, Design
Models to Download
Knowledge Base Articles
Frequently Asked Questions (FAQ)
- For a tapered member, I get the error message "Invalid (incompatible) arrangement ...". What can I do?
- As part of my bachelor thesis, I would like to integrate the RSTAB printout report into LaTeX. There, you can completely integrate a PDF document as shown in the viewer. This also works with any PDF document, but not with the printout report created by RSTAB. What could be the reason?
- I have defined a wind profile for RWIND Simulation up to a height of 100 m. Is the wind profile dependent on the size of the wind tunnel?
- How can I set the deformation coefficient kdef in the program?
- I would like to design an aluminum or lightweight structure. Is it possible to use RFEM or RSTAB for this?
- How is the load distributed to the members in the angular axis method if members are excluded from the load application?
- A rigid member should only be able to absorb tensile forces or only compressive forces. What are the options for considering these nonlinearities in the calculation?
- The installation of a Dlubal Software program is not possible due to the following message: "Program unsafe, protection by Microsoft Defender SmartScreen." How can I install the program?
- How can I perform a stability analysis for a tapered member?
- I want to support a member along its line. When defining a fixed line support on the line of the member, the check leads to an error message regarding the undefined surface. How can I fix the problem?
Revitalization and Extension of Supporting Structure of Stage Roof in State Playhouse Dresden, Germany