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005677
Clemens Gutmann, M.Eng.
2025-04-01

Using Dlubal API in Rhino and Grasshopper

Can I use Dlubal API in Rhino and Grasshopper?

Answer:

Yes, you can use the Dlubal API in Rhino and Grasshopper. For this, it is necessary to install the Dlubal API in the Rhino environment:

  1. Open Rhino and execute the command _ScriptEditor
  2. In the Script Editor menu, select Tools > Advanced > Open Python 3 Shell
  3. Install the Dlubal API in the command line that opens: 
    pip install dlubal.api

After the installation, the Dlubal API is available in the Rhino script editor and in the Grasshopper Python component
For more information on how to use the API, see our documentation: Documentation API II

Info

Please note that the Dlubal API only works with Python 3, which is currently supported by Rhino 8.

Demonstration of thé API integration in Rhino and Grasshopper for modeling and analysis.
FAQ 005677 | Using Dlubal API in Rhino and Grasshopper
Author

Mr. Gutmann provides technical support for Dlubal Software customers.

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Knowledge Base Articles
Model showing integrated steel joints highlighting connection and structure interaction in design.
This article explores the importance of considering joint-structure interaction in modeling and design and how to do it in RFEM 6.
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KB 001925 | AISC Fillet Weld Design in RFEM 6
The weld stresses between surfaces can be determined using the Stress-Strain Analysis add-on in RFEM 6. Furthermore, the stress limit determined according to the applicable standard can be input to determine the stress ratio of the weld. This article focuses on the fillet weld design according to AISC 360-22 [1] with two examples from AISC Volume 1: Design Examples [2].
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Product Features
Feature 002916 | Joint-Structure Interaction for Steel Joints

Want to automatically consider steel joint stiffness in your global RFEM model? Utilize the Steel Joints add-on!

Activate joint-structure interaction in the stiffness analysis of your steel joints. Hinges with springs are then automatically generated in the global model and included in subsequent calculations.

Feature 002820 | Limit Plastic Strain for Welds

In the ultimate configuration of the steel joint design, you have the option to modify the limit plastic strain for welds.

Component "Base Plate"

The "Base Plate" component allows you to design base plate connections with cast-in anchors. In this case, plates, welds, anchorages, and steel-concrete interaction are analyzed.

Feature 002807 | 3D Display of FSM Results

In the "Edit Section" dialog box, you can display the buckling shapes of the Finite Strip Method (FSM) as a 3D graphic.

Frequently Asked Questions (FAQ)

In the Steel Joints add-on, I get high utilization ratios for preloaded bolts in the tension design. Where do these high utilization ratios come from and how can I evaluate the load-bearing reserves of the bolt?

How can treating a connection as fully rigid result in an uneconomical design?

Is it possible to consider shear panels and rotational restraints in the global calculation?
A steel joint in my model is non-designable. How can I get more information to find the cause?
I am calculating a column that is restrained at the base, held in the head in the X-direction, and can buckle in the Y-direction. I have set the effective lengths using nodal supports. In the design, the values of the effective lengths for the calculation are both the same L_ (cr, z) = L_ (cr, y) = 2.41 m. What am I doing wrong?
What is the Function of Chained Analysis Diagram?
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