How to create a bridge model in OpenBrIM Platform?
OpenBrIM uses parametric modeling to define all bridges. Instead of drawing geometry manually, you define parameters that drive the entire model.
Parametric vs. Traditional Modeling
Input
Draw lines, surfaces, enter coordinates
Define parameters (span length, girder depth, etc.)
Making changes
Manually update each affected element
Change one parameter, everything updates automatically
Reusability
Start from scratch each project
Reuse components across projects
Error risk
High (manual updates can be missed)
Low (automatic propagation)
The OpenBrIM Library
The OpenBrIM Library stores parametric components with built-in engineering relationships. This provides:
Transparent logic — See how components relate to each other
Customization — Modify components or create your own
Reusability — Use the same components across multiple projects
Collaboration — Share custom components with your team
Typical Workflow
1. Requirements
Work with OpenBrIM engineers to identify project needs and customize library components
2. Alignment
Import LandXML alignment data
3. Parameters
Enter bridge parameters in the spreadsheet
4. Review
Check the model in 3D, FEA, and CAD views
5. Analysis
Run finite element analysis and review results
6. Design
Run specification checks and generate reports
7. Quantity Takeoff
Generate quantities with pay items for cost estimation
8. Export
Export to other FEA software to verify analysis results, or export 3D/2D models with pay items to meet agency submission requirements
Customization
Need a parameter that doesn't exist? You have two options:
Customize the library yourself — Modify existing components or create new ones
Work with our team — OpenBrIM engineers can add parameters to meet your requirements
Custom components become part of your library and can be reused across all future projects.
Last updated