news

blog

Reduce the Re-Work: Automating Rigid Bus Analysis in Substation Design

September 30, 2025

Updated:

September 30, 2025

Originally Published:

Integrations between BIM (Building Information Modeling) and structural analysis tools are reshaping the possibilities for modeling in substation engineering. Once integrated, engineering teams can create coordinated 3D models that have the power to connect across disciplines while also allowing users to extract element data.

The traditional approach to rigid bus analysis via FEA (Finite Element Analysis) models can be a tedious and time-consuming process, with technicians and engineers often duplicating efforts. But with integrations between BIM (Building Information Modeling) and structural analysis tools, that’s changing.

Today, engineering teams can automate rigid bus analytical model generation in just a few clicks—transforming how substations are designed, analyzed, and delivered and opening up possibilities for time-saving engineering and drafting automations.

Traditional vs. Automated Workflows: What’s the Difference?

In a conventional workflow, bus arrangement modeling and structural analysis happen in silos. A structural engineer references the 3D model or 2D drawing to build an analysis model manually in an FEA software.

This traditional approach creates:

  • Duplicate work
  • Higher risk of errors
  • Inconsistent design interpretation
  • Slower project timelines

A modern workflow eliminates this disconnect by integrating BIM and FEA platforms. This allows engineers to create analytical models directly from 3D Revit models—reducing rework, improving consistency, and accelerating delivery.

The Process: Getting from a 3D Model to an Analytical Model

1. Model in Revit.

The process begins in Revit, where rigid bus components—such as insulators, fittings, and structural members—are modeled using structural families.

2. Generate Analytical Geometry from Model Geometry.

Revit’s built-in “Analytical Automation” tool, powered by a Dynamo script, enables users to generate analytical models using only the Revit model.

This built-in script uses your modeled components to create analytical elements that FEA tools can understand, including analytical members, nodes, and boundary conditions.

3. Export to FEA Software.

Once the analytical model is ready, you can export it into tools like:

  • Autodesk Robot (native integration with Revit)
  • RISA and SAP2000 (via dedicated plug-ins)

These plug-ins preserve analytical data, including:

  • Member sizes and structural materials
  • Boundary conditions
  • Applied loads

This seamless handoff eliminates the need to rebuild the model in your FEA tool—saving time and maintaining consistency with your design intent.

Animation of substation 3D model development, including station civil layout, site grading and drainage, foundations, rebar, structures and connections, and rigid bus

Compatible Platforms and Integration Notes

Autodesk Robot offers the smoothest integration, with full two-way data sharing and native Revit support.

RISA and SAP2000 require plug-ins. While still highly effective, users may run into minor compatibility issues depending on software versions, modeling practices, or unsupported family types.

The key takeaway? The more consistent and clean your modeling practices are in Revit, the more accurate and efficient your analysis will be—regardless of the platform you are using.

Best Practices for Effective Automation

Automation is only as good as the inputs. Here are essential tips to ensure the process works as intended:

1. Use Structural Families

Revit’s out-of-the-box Analytical automation tool depends on the use of structural family types. Avoid using architectural or generic components for anything that you want to create analytical elements from unless you want to customize the Dynamo script.

2. Model Directionally

Be consistent in how you model elements. For example:

  • Insulators: bottom to top
  • Bus runs: left to right

This ensures correct I/J end assignments in FEA tools.

3. Align Precisely

Avoid fractional misalignments or skewed geometry. Snap to grid lines, use reference planes, and align components clearly to ensure the analytical model reflects actual geometry.

4. Leverage Revit Material Libraries

Revit’s material settings influence analytical properties. Switching from steel to aluminum, for example, automatically updates the analytical model’s output—no rework needed.

Bonus: Extending the Workflow with Additional Automation

The benefits don’t stop at analysis. This integrated approach opens the door to full vertical coordination between engineering and detailing.

  • Automate Load Application: Extend Dynamo scripts to apply live loads, wind, or seismic forces directly within Revit.
  • Automate Post-Processing: Generate structural reports, flag overstressed components, or push results into documentation sets.
  • Coordinate with Fabrication: Integrate tools like Advance Steel to convert Revit models into fabrication drawings, streamlining workflows from analysis to construction.
  • Import Manufacturer Models: Use platforms like Autodesk Inventor or Informed Design to integrate high-fidelity vendor models and incorporate them into your project workflows.

The result: a connected design ecosystem where engineers, designers, and detailers work from a single, consistent source of truth.

Time Savings: What’s the ROI?

Even on smaller projects, this workflow saves time. But on larger, more complex substations, the results are substantial:

Table showing time saving estimates by substation project type

In addition to saving hours (or days), you’ll reduce costly rework, eliminate duplicated modeling effort, and improve overall coordination between design and analysis to ensure coordinated project delivery.

Graphic listing the benefits of Revit and analytical automation

Potential Downsides and Considerations

While powerful, this workflow isn’t plug-and-play without some forethought:

  • Software Compatibility: Plug-ins must match your Revit version exactly. Version mismatches can prevent tools from functioning properly or even appearing in the interface.
  • Modeling Discipline Required: Inconsistent modeling (reversed directions, misaligned grids, or incorrect families) can lead to bad data exports and inaccurate analyses.
  • Training and Adoption Curve: Teams unfamiliar with Revit, Dynamo, or FEA tools may require onboarding and standardization training before seeing full value.
  • Limited Round-Trip Editing: While back-and-forth integrations are possible, they require well-developed practice. Most integrations are likely to be one-way at first. If changes are made in the FEA software, those updates may not flow back into Revit without some manual rework or until teams are fully accustomed to harnessing the software.

For most teams, though, the advantages of automation and integration far outweigh the potential drawbacks. With proper planning and disciplined modeling, this new workflow can transform how substation engineering is done.

Final Thoughts

Rigid bus analytical model creation does not have to be time-consuming. By automating model creation and integrating Revit with trusted FEA tools, structural engineers can drastically improve efficiency, accuracy, and collaboration. This workflow bridges the gap between BIM coordination and structural analysis while helping engineering teams deliver better results, faster. As adoption grows, automated rigid bus analysis is poised to become the new standard in the industry.

About Beta Engineering

Beta Engineering is a substation EPC company headquartered in Pineville, Louisiana, with an office in San Diego. Since 1975, we’ve partnered with utilities across the U.S. to deliver high-voltage substation and transmission projects with lasting reliability. Contact our team to learn how we apply over 50 years of industry experience to help our clients design and build with greater confidence and less rework.

More Beta News

blog

Reduce the Re-Work: Automating Rigid Bus Analysis in Substation Design

September 30, 2025

Updated:

September 30, 2025

September 30, 2025

Updated:

September 30, 2025

Originally Published:

Integrations between BIM (Building Information Modeling) and structural analysis tools are reshaping the possibilities for modeling in substation engineering. Once integrated, engineering teams can create coordinated 3D models that have the power to connect across disciplines while also allowing users to extract element data.

The traditional approach to rigid bus analysis via FEA (Finite Element Analysis) models can be a tedious and time-consuming process, with technicians and engineers often duplicating efforts. But with integrations between BIM (Building Information Modeling) and structural analysis tools, that’s changing.

Today, engineering teams can automate rigid bus analytical model generation in just a few clicks—transforming how substations are designed, analyzed, and delivered and opening up possibilities for time-saving engineering and drafting automations.

Traditional vs. Automated Workflows: What’s the Difference?

In a conventional workflow, bus arrangement modeling and structural analysis happen in silos. A structural engineer references the 3D model or 2D drawing to build an analysis model manually in an FEA software.

This traditional approach creates:

  • Duplicate work
  • Higher risk of errors
  • Inconsistent design interpretation
  • Slower project timelines

A modern workflow eliminates this disconnect by integrating BIM and FEA platforms. This allows engineers to create analytical models directly from 3D Revit models—reducing rework, improving consistency, and accelerating delivery.

The Process: Getting from a 3D Model to an Analytical Model

1. Model in Revit.

The process begins in Revit, where rigid bus components—such as insulators, fittings, and structural members—are modeled using structural families.

2. Generate Analytical Geometry from Model Geometry.

Revit’s built-in “Analytical Automation” tool, powered by a Dynamo script, enables users to generate analytical models using only the Revit model.

This built-in script uses your modeled components to create analytical elements that FEA tools can understand, including analytical members, nodes, and boundary conditions.

3. Export to FEA Software.

Once the analytical model is ready, you can export it into tools like:

  • Autodesk Robot (native integration with Revit)
  • RISA and SAP2000 (via dedicated plug-ins)

These plug-ins preserve analytical data, including:

  • Member sizes and structural materials
  • Boundary conditions
  • Applied loads

This seamless handoff eliminates the need to rebuild the model in your FEA tool—saving time and maintaining consistency with your design intent.

Animation of substation 3D model development, including station civil layout, site grading and drainage, foundations, rebar, structures and connections, and rigid bus

Compatible Platforms and Integration Notes

Autodesk Robot offers the smoothest integration, with full two-way data sharing and native Revit support.

RISA and SAP2000 require plug-ins. While still highly effective, users may run into minor compatibility issues depending on software versions, modeling practices, or unsupported family types.

The key takeaway? The more consistent and clean your modeling practices are in Revit, the more accurate and efficient your analysis will be—regardless of the platform you are using.

Best Practices for Effective Automation

Automation is only as good as the inputs. Here are essential tips to ensure the process works as intended:

1. Use Structural Families

Revit’s out-of-the-box Analytical automation tool depends on the use of structural family types. Avoid using architectural or generic components for anything that you want to create analytical elements from unless you want to customize the Dynamo script.

2. Model Directionally

Be consistent in how you model elements. For example:

  • Insulators: bottom to top
  • Bus runs: left to right

This ensures correct I/J end assignments in FEA tools.

3. Align Precisely

Avoid fractional misalignments or skewed geometry. Snap to grid lines, use reference planes, and align components clearly to ensure the analytical model reflects actual geometry.

4. Leverage Revit Material Libraries

Revit’s material settings influence analytical properties. Switching from steel to aluminum, for example, automatically updates the analytical model’s output—no rework needed.

Bonus: Extending the Workflow with Additional Automation

The benefits don’t stop at analysis. This integrated approach opens the door to full vertical coordination between engineering and detailing.

  • Automate Load Application: Extend Dynamo scripts to apply live loads, wind, or seismic forces directly within Revit.
  • Automate Post-Processing: Generate structural reports, flag overstressed components, or push results into documentation sets.
  • Coordinate with Fabrication: Integrate tools like Advance Steel to convert Revit models into fabrication drawings, streamlining workflows from analysis to construction.
  • Import Manufacturer Models: Use platforms like Autodesk Inventor or Informed Design to integrate high-fidelity vendor models and incorporate them into your project workflows.

The result: a connected design ecosystem where engineers, designers, and detailers work from a single, consistent source of truth.

Time Savings: What’s the ROI?

Even on smaller projects, this workflow saves time. But on larger, more complex substations, the results are substantial:

Table showing time saving estimates by substation project type

In addition to saving hours (or days), you’ll reduce costly rework, eliminate duplicated modeling effort, and improve overall coordination between design and analysis to ensure coordinated project delivery.

Graphic listing the benefits of Revit and analytical automation

Potential Downsides and Considerations

While powerful, this workflow isn’t plug-and-play without some forethought:

  • Software Compatibility: Plug-ins must match your Revit version exactly. Version mismatches can prevent tools from functioning properly or even appearing in the interface.
  • Modeling Discipline Required: Inconsistent modeling (reversed directions, misaligned grids, or incorrect families) can lead to bad data exports and inaccurate analyses.
  • Training and Adoption Curve: Teams unfamiliar with Revit, Dynamo, or FEA tools may require onboarding and standardization training before seeing full value.
  • Limited Round-Trip Editing: While back-and-forth integrations are possible, they require well-developed practice. Most integrations are likely to be one-way at first. If changes are made in the FEA software, those updates may not flow back into Revit without some manual rework or until teams are fully accustomed to harnessing the software.

For most teams, though, the advantages of automation and integration far outweigh the potential drawbacks. With proper planning and disciplined modeling, this new workflow can transform how substation engineering is done.

Final Thoughts

Rigid bus analytical model creation does not have to be time-consuming. By automating model creation and integrating Revit with trusted FEA tools, structural engineers can drastically improve efficiency, accuracy, and collaboration. This workflow bridges the gap between BIM coordination and structural analysis while helping engineering teams deliver better results, faster. As adoption grows, automated rigid bus analysis is poised to become the new standard in the industry.

About Beta Engineering

Beta Engineering is a substation EPC company headquartered in Pineville, Louisiana, with an office in San Diego. Since 1975, we’ve partnered with utilities across the U.S. to deliver high-voltage substation and transmission projects with lasting reliability. Contact our team to learn how we apply over 50 years of industry experience to help our clients design and build with greater confidence and less rework.

Related Services:

get articles delivered to your inbox
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

More Blog Articles

Let's Talk About Your Project

*
*
*
*
*
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
*
*
*
*
*
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
Privacy Policy
©2025 Beta Engineering. All rights reserved.