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This session presents a practical bridge design automation workflow using the MIDAS CIVILn NX API and Excel VBA. Based on a theme park development project with more than 20 similar bridge structures, the presentation explains how repetitive manual modeling, analysis, and result extraction were transformed into a one click automated process. The workflow uses Excel as the main input and output interface, where engineers can define key bridge parameters such as span length, deck width, girder layout, abutment geometry, foundation size, loads, and soil spring data. Through the API script, MIDAS Civil NX automatically generates the model, applies supports and loads, runs the analysis, and sends results back to Excel for design checking. The session highlights how API automation can reduce bridge modeling time from 5 to 8 hours to less than one minute, minimize manual input errors, support fast parametric studies, and allow engineers to focus more on optimization and engineering decisions.
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Description
- This video shows how an Excel/VBA setup drives the MIDAS CIVIL NX API to automate bridge modeling, from parameter input all the way to design checks.
- Bridge parameters are entered in Excel, then the API connection generates the model in MIDAS CIVIL NX, runs the analysis, and extracts results (bending moment, shear force, bearing pressure) back into Excel.
- The demonstration also shows the extracted results being compared against capacity in a linked design check sheet, completing the loop from input to design verification.
Key Points
Excel and VBA Driving the MIDAS CIVIL NX API
Automated Model Generation and Analysis
Results Extracted Back to Excel
Design Check Against Capacity in One Workflow
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