The Muengsten Viaduct is an impressive steel structure connecting the cities of Solingen and Remscheid. After 120 years of use, the bridge showed damage and deviations from the standards, which made a fundamental renovation necessary for further use for the next 30 years. The structural recalculation was carried out by IWS Engineers, while PSP - Professor Sedlacek and Partners checked the calculation with RSTAB. Special attention was paid to compliance with the current design standards. The engineers have contributed significantly to maintaining the value of the structure. For more information about the analysis, see [www.psp-ingenieure.de PSP Ingenieure].
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Müngsten Viaduct – Historic Steel Bridge in Solingen-Remscheid
Number of Nodes | 3657 |
Number of Members | 5485 |
Number of Load Cases | 1459 |
Dimensions (Metric) | 466.500 x 25.997 x 80.521 m |
Dimensions (Imperial) | 1530.51 x 85.29 x 264.18 feet |
Program Version | 8.10.01 |



The aim of this technical article is to perform a design according to the general design method of Eurocode 2, using the example of a slender reinforced concrete column.


RFEM and RSTAB models can be saved as 3D glTF models (*.glb and *.glTF formats). View the models in 3D in detail with a 3D viewer from Google or Babylon. Take your VR glasses, such as Oculus, to "walk" through the structure.
You can integrate the 3D glTF models into your own websites using JavaScript according to the instructions (as on the Dlubal website Models to Download): "Easily display interactive 3D models on the web & in AR" .

With the Camera Fly Mode view option, you can fly through your RFEM and RSTAB structure. Control the direction and speed of the flight with your keyboard. Additionally, you can save the flight through your structure as a video.

The "Nonlinear Material Behavior" add-on includes the Anistropic | Damage material model for concrete structural components. This material model allows you to consider concrete damage for members, surfaces, and solids.
You can define an individual stress-strain diagram via a table, use the parametric input to generate the stress-strain diagram, or use the predefined parameters from the standards. Furthermore, it is possible to consider the tension stiffening effect.
For the reinforcement, both nonlinear material models "Isotropic | Plastic (Members)" and "Isotropic | Nonlinear Elastic (Members)" are available.
It is possible to consider the long-term effects due to creep and shrinkage using the "Static Analysis | Creep & Shrinkage (Linear)" analysis type that has been recently released. Creep is taken into account by stretching the stress-strain diagram of the concrete using the factor (1+phi), and shrinkage is taken into account as the pre-strain of the concrete. More detailed time step analyses are possible using the "Time-Dependent Analysis (TDA)" add-on.

In the Concrete Design add-on, you can determine the required longitudinal reinforcement for the direct crack width analysis (w k).
How can I check the determination of the required reinforcement?