Structural Analysis · 3D CAD Modeling

Long-Span Suspension Bridge 3D CAD Modeling & Structural Analysis

An engineering modeling and analysis project focused on developing an integrated 3D bridge model, generating technical visualizations, and performing structural response analysis for a long-span cable-supported bridge system.

Tools

SAP2000, AutoCAD 3D

Project Type

Structural Modeling & Analysis

Institution

Columbia University

3D rendering of the long-span suspension bridge

Project Overview

This project involved the development of an integrated 3D structural model and topographic model for an 800 m main-span suspension bridge. The work connected bridge geometry, terrain context, visual representation, and structural analysis to support design communication and technical review.

The project also included structural response studies using SAP2000 under several modeling scenarios, including dead load, prestress loss, and cable failure cases.

My Role

Built the 3D bridge and terrain model for design visualization.
Generated plan, section, and detail views from the 3D model.
Performed SAP2000 vibration and structural response analyses.
Summarized analysis results and supported iterative model refinement.
Maintained consistent model layers, annotations, and geometric coordination.

Project Gallery

3D bridge model, roadway perspective, CAD model view, and SAP2000 analysis output.

Overall 3D rendering of the bridge — Overall 3D bridge model and surrounding terrain context.

Roadway perspective of the bridge model — Roadway-level view showing tower, deck, and cable layout.

CAD view of bridge cable and terrain model — CAD-based bridge model showing cable geometry and site context.

SAP2000 structural analysis result — SAP2000 structural response visualization under analysis scenario.