RPI Master’s Project Proposal

Stephen Ganz – 5/15/2012

Structural Analysis of Bridge Gusset Plates:Steel vs. Composite

Gusset Plate Applications

• Gusset plates are used to join structural members such as beams and are typically made from steel.

• Specific Applications:– Bridges– Building Frames– Roofing– Cranes

Problem Description

• The objective of this project is to compare the performance differences in metallic and composite plates by performing structural analyses on a Warren truss bridge.

Performance will be evaluated based on stress and deflections.

– Loading will be based on Department of Transportation and CT Bridge design manuals.

Warren Truss Bridge

Methodology/Approach

• On paper, construct a bridge that reflects actual dimensions and loading.

• In finite element analysis software, create a 2-D model representative of the bridge constructed of gusset plates, loads and constraints.

• Run analyses using steel and composite material properties.

• Compare results.

• Optimize composite structure.

Expected Outcomes

• Composite gusset plates may offer possible strength advantages over steel.

Resources Required• Microsoft Office• Abaqus/CAE (Finite Element Analysis Software)• Mathcad

Milestones

5/21 Submit proposal draft

5/26 Complete Research and Develop Loads

6/4 Create 2-D model and complete mesh study

6/11 Submit First Progress Report

6/19 Create composite model and compare to metals

7/2 Submit Second Progress Report

7/9 Tabulate Results

7/16 Submit Final Draft

7/30 Preliminary Final Report

8/6 Submit Final Report