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2023-04-13

Optimal BIM Integration with Revit and RFEM

Optimal BIM Integration with Revit and RFEM
2018-12-12
English (US)
Free
EN-US | Flag Event
Webinar: Optimal BIM Integration with Revit and RFEM (USA)
  • Direct integration link between Revit and RFEM
  • Explore various scenarios of Revit to RFEM import/export
  • Round-tripping of updated model between programs
  • Useful tips for a more optimized integration
Time Schedule
Up to 08:35
Introduction
Up to 19:40
Description and export of Revit structural model
Up to 42:25
Import and steel design of Revit model in RFEM
Up to 44:07
Export of updated model to Revit
Up to 57:52
Concrete member/slab reinforcement design in RFEM andexport to Revit
Up to 58:00
New model export from RFEM to Revit
Up to 01:03:15
Conclusion

Amy Heilig, PE

CEO – USA Subsidiary | Sales Engineer

Amy Heilig is the CEO of the USA Subsidiary and responsible for sales and continued program development for the North American market.

Location

Online
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  • Latest Videos
Events
Videos
Models to Download
Knowledge Base Articles
KB 1900 | Prying Effect in Flange Connections of Circular Hollow Sections
This article discusses and compares the prying effect in three types of connections: a connection with ring flange, a full end plate, and a stiffened ring flange.
Steel Connection Rigidity and Its Influence on Structural Design
Understanding steel connection rigidity is crucial in structural design. Often, connections are treated as strictly pinned or rigid, but this can lead to uneconomical or even dangerous design checks. Explore how Dlubal Software's RFEM and Steel Joints add-on help verify connection stiffness and moment resistance, ensuring safer and more economical design checks.
Running Steel Joint Design
The advantage of the RFEM 6 Steel Joints add-on is that you can analyze steel connections using an FE model for which the modeling runs fully automatically in the background. The input of the steel joint components that control the modeling can be done by defining the components manually, or by using the available templates in the library. The latter method is included in a previous Knowledge Base article titled “Defining Steel Joint Components Using the Library". The definition of parameters for the design of steel joints is the topic of the Knowledge Base article “Designing Steel Joints in RFEM 6".
Editing Steel Joint
Steel connections in RFEM 6 are defined as an assembly of components. In the new Steel Joints add-on, universally applicable basic components (plates, welds, auxiliary planes) are available for entering complex connection situations. The methods with which connections can be defined are considered in two previous Knowledge Base articles: “A Novel Approach to Designing Steel Joints in RFEM 6" and “Defining Steel Joint Components Using the Library".
Screenshots
Product Features
Feature 002667 | Classification of Steel Joints by Stiffness

In the Steel Joints add-on, you can classify the joint stiffnesses.

In addition to the initial stiffness, the table also shows the limit values for hinged and rigid connections for the selected internal forces N, My, and/or Mz. The resulting classification is then displayed in tables as "hinged", "semi-rigid", or "rigid".

Go to Explanatory Video
Feature 002669 | Preloaded Bolts for Steel Joints

In the "Steel Joints" add-on, you can consider preloaded bolts in all components during the calculation. You can easily activate the preloading using the check box in the bolt parameters, and it has an impact on the stress-strain analysis as well as the stiffness analysis.

Preloaded bolts are special bolts used in steel structures to generate a high clamping force between the connected structural components. This clamping force causes friction between the structural components, which allows for the transfer of forces.

Functionality
Preloaded bolts are tightened with a certain torque, causing them to stretch and generate a tensile force. This tensile force is transferred to the connected components and leads to a high clamping force. The clamping force prevents the connection from loosening and ensures safe force transmission.

Advantages

  • High load-bearing capacity: Preloaded bolts can transfer large forces.
  • Low deformation: They minimize the deformation of the connection.
  • Fatigue strength: They are resistant to fatigue.
  • Easy assembly: They are relatively easy to assemble and disassemble.

Analysis and Design
The calculation of preloaded bolts is performed in RFEM using the FE analysis model generated by the "Steel Joints" add-on. It takes into account the clamping force, friction between structural components, shear strength of bolts, and load-bearing capacity of the structural components. The design is carried out according to DIN EN 1993‑1‑8 (Eurocode 3) or the US standard ANSI/AISC 360‑16. You can save the created analysis model, including the results, and use it as an independent RFEM model.

Feature 002584 | Steel Joint Design for Built-up and Thin-Walled Sections

In the Steel Joint add-on, you can design the connections of members with composite cross-sections. Furthermore, you can perform joint design checks for almost all thin-walled cross-sections in the RFEM library.

Go to Explanatory Video
Feature 002561 | Connecting Plate Component

Using the "Connecting Plate" component, you can automatically create a new gusset plate in the Steel Joints add-on. This saves you separate components, and the other elements, such as a cap plate and a slide plate, are thus automatically taken into account with their dimensions.

Go to Explanatory Video
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?
Which programs and add-ons are suitable for the structural analysis and design of steel structures?

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?
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