The model illustrates a frame with hinged supports at the column bases and moment hinges at the column head. If only vertical loading is applied, the tension members are omitted, which makes the structural system unstable and causes the calculation to abort. The special feature is the option to activate special treatment of the failed members via “Calculation” → “Calculation Parameters” → “Global Calculation Parameters”.
Model Used in
Overall
This page has 0 user ratings.
| 5 star | ||
| 4 star | ||
| 3 star | ||
| 2 star | ||
| 1 star |
Unstable Steel Frame
| Number of Nodes | 4 |
| Number of Members | 5 |
| Number of Load Cases | 3 |
| Total Weight | 0,668 t |
| Dimensions (Metric) | 5.500 x 0.500 x 5.250 m |
| Dimensions (Imperial) | 18.04 x 1.64 x 17.22 feet |
| Program Version | 8.04.00 |
You can download this structural model to use it for training purposes or for your projects. However, we do not assume any guarantee or liability for the accuracy or completeness of the model.
Related Models
Duration: 01:19:08 min
Duration: 01:06:17 min
.png?mw=350&hash=c6c25b135ffd26af9cd48d77813d2ba5853f936c)
Duration: 00:08:02 min
Knowledge Base
Duration: 00:00:47 min
Duration: 00:00:00 min
Duration: 00:00:13 min
General
Duration: 00:00:29 min
Product Feature
Duration: 00:00:26 min
Duration: 00:00:10 min
This article describes and explains the influence of bending stiffness of cables on their internal forces. Furthermore, the text provides information on how this influence can be reduced.
Using the Timber Design add-on, timber column design is possible according to the 2018 NDS standard ASD method. Accurately calculating timber member compressive capacity and adjustment factors is important for safety considerations and design. The following article will verify the maximum critical buckling strength calculated by the Timber Design add-on using step-by-step analytical equations as per the NDS 2018 standard including the compressive adjustment factors, adjusted compressive design value, and final design ratio.
Rolled sections, the most common cross‑section type in RFEM and RSTAB, can also have user‑defined parameters. To do this, select the cross‑section to be modified in the cross‑section library and click the [Parametric Input...] button.
In this article, the adequacy of a 2x4 dimension lumber subject to combined biaxial bending and axial compression is verified using the RF-/TIMBER AWC add-on module. The beam-column properties and loading are based on example E1.8 of AWC Structural Wood Design Examples 2015/2018.
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 direct interface with Revit allows you to update the Revit model according to the changes you have made in RFEM or RSTAB. Depending on the modification, the Revit objects may have to be regenerated (deleting the object and subsequent regeneration). The regeneration is performed on the basis of the RFEM/RSTAB model.
If you want to avoid this regeneration, activate the check box 'Update only materials, thicknesses, and sections'. In this case, only the properties of the objects will be adjusted. Changes different from those in material, surface thickness, and section are, however, not considered in this case.
The reinforcement proposal from RF-/CONCRETE Members can be exported to Revit. The rectangular and circular cross-sections are currently supported.
The reinforcement bars can be modified retroactively in Revit.
Where can I find the update reports for RFEM 5, RSTAB 8, SHAPE-THIN, SHAPE-MASSIVE, RX-TIMBER, CRANEWAY, PLATE-BUCKLING, COMPOSITE-BEAM?
For my NVIDIA graphics card, I need to select between a driver from the "Production Branch" and a "New Feature Branch." Which driver is best suited for RFEM/RSTAB?
Why do the min/max values of the total displacement not match the deformations when working with result combinations?
Can I display node coordinates in my model?
Can I use SHAPE-THIN 9 in combination with RSTAB 8?
Has the RF-TOWER add-on module for RFEM 5 already been added to RFEM 6?
_1.jpg?mw=350&hash=ab2086621f4e50c8c8fb8f3c211a22bc246e0552)
Recommended Products for You
RFEM 6 | Main Program RFEM 6
Main Program
The new generation of 3D FEA software is used for the structural analysis of members, surfaces, and solids.
Price of First License
4,790.00 USD
RFEM 6 | Design
Add-On
The Steel Design add-on performs the ultimate and serviceability limit state design checks of steel members according to various standards.
Price of First License
2,970.00 USD
RFEM 6 | Joints
.png?mw=600&hash=49b6a289915d28aa461360f7308b092631b1446e)
Add-On
The Steel Joints add-on for RFEM allows you to analyze steel connections using an FE model. The FE model is generated automatically in the background and can be controlled via the simple and familiar input of components.
Price of First License
2,670.00 USD
RFEM 6 | Additional Analysis
Add-On
The Torsional Warping (7 DOF) add-on allows you to consider cross-section warping as an additional degree of freedom.
Price of First License
1,660.00 USD
RFEM 6 | Additional Analysis
Add-On
The Nonlinear Material Behavior add-on allows you to consider material nonlinearities in RFEM for example, isotropic plastic, orthotropic plastic, isotropic damage).
Price of First License
1,660.00 USD
RFEM 6 | Additional Analysis
Add-On
The Structure Stability add-on performs stability analysis of structures. It determines critical load factors and the corresponding stability modes.
Price of First License
1,460.00 USD
RFEM 6 | Additional Analysis
Add-On
The Construction Stages Analysis (CSA) add-on allows for considering the construction process of structures (member, surface, and solid structures) in RFEM.
Price of First License
1,760.00 USD
RFEM 6 | Additional Analysis
Add-On
The Time-Dependent Analysis (TDA) add-on allows you to consider the time-dependent material behavior of members and surfaces. The long-term effects, such as creep, shrinkage, and aging, can influence the distribution of internal forces, depending on the structure.
Price of First License
1,160.00 USD
RFEM 6 | Additional Analysis
Add-On
The Form-Finding add-on finds the optimal shape of members subjected to axial forces and tension-loaded surface models. The shape is determined by the equilibrium between the member axial force or the membrane stress and the existing boundary conditions.
Price of First License
2,320.00 USD
RFEM 6 | Dynamic Analysis
Add-On
The Modal Analysis add-on allows for the calculation of eigenvalues, natural frequencies, and natural periods for member, surface, and solid models.
Price of First License
1,360.00 USD
RFEM 6 | Dynamic Analysis
Add-On
Using the Pushover Analysis add-on, you can analyze the seismic actions on a particular building, and thus assess whether the building can withstand an earthquake.
Price of First License
1,460.00 USD
RFEM 6 | Special Solutions
Add-On
The Building Model add-on for RFEM allows you to define and manipulate a building using stories. The stories can be adjusted in many ways afterwards. The information about stories and the entire model (center of gravity) is displayed in tables and graphics.
Price of First License
1,970.00 USD
RFEM 6 | Design
Add-On
The Stress-Strain Analysis add-on performs general stress analysis by calculating the existing stresses and comparing them with the limit stresses.
Price of First License
1,360.00 USD
RSTAB 9 | Main Program RSTAB 9
Main Program
The modern 3D structural analysis and design program is suitable for the structural and dynamic analysis of beam structures as well as the design of concrete, steel, timber, and other materials.
Price of First License
3,380.00 USD
RSTAB 9 | Design
Add-On
The Steel Design add-on performs the ultimate and serviceability limit state design checks of steel members according to various standards.
Price of First License
2,970.00 USD
RSTAB 9 | Additional Analysis
Add-On
The Structure Stability add-on performs the stability analysis of structures. It determines critical load factors and the corresponding stability modes.
Price of First License
1,460.00 USD
RSTAB 9 | Design
Add-On
The Stress-Strain Analysis add-on performs a general stress analysis by calculating the existing stresses and comparing them to the limit stresses.
Price of First License
1,260.00 USD
RSTAB 9 | Additional Analysis
Add-On
The Torsional Warping (7 DOF) add-on allows for considering cross-section warping as an additional degree of freedom when calculating members.
Price of First License
1,660.00 USD
RSTAB 9 | Dynamic Analysis
Add-On
The Modal Analysis add-on allows for the calculation of eigenvalues, natural frequencies, and natural periods for member, surface, and solid models.
Price of First License
1,360.00 USD
RSTAB 9 | Dynamic Analysis
Add-On
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 Analysis 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
1,460.00 USD