Comparing the Strength Characteristics of Two Styles of the Warren Truss Bridge

Overview

Objectives/Goals My project's objective is to determine the percent of additional strength of the modified Warren Truss when verticals are inserted. My original hypothesis was that the modified Warren Truss would be 50% stronger than the standard modified Warren Truss. Methods/Materials In my project I used balsa wood to crate the six bridges for testing, three of each style. I glued, pinned, and bound the joints to make them strong, to ensure that the tests were valid. Results My results surprised me, the verticals only made the bridge 28.5% stronger, only a little only half of my hypothesis. They mostly added stiffness. Conclusions/Discussion I feel that my project is pertinent to modern day life because trusses are used in many structural applications, and the correct truss design is critical to each unique situation.

Competition history

• CSEF 2002 Structural Capability & Strength of Materials (Junior Division Only) · Entry J1811

Resources

• CSEF project summary ↗

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