K-Truss bridge built for Wake Tech intro to engineering class

This bridge is supporting 191lbs of weight. It didn’t break, that was all the weight we could fit in the trash can. I believe this is close to the maximum load it could hold because the platform the jig is resting on was significantly bowed. The rest of the structure was rock solid. The construction of the bridge is popsicle sticks

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Balsa Wood K Truss Bridge

Balsa wood bridge using the K Truss

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K Truss Analysis

Upon request, I have written an analysis of the K Truss which you can read about on my truss design page. The K truss design deserves your consideration as a bridge builder. • • • • Share This!

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Truss Design

Common trusses used in engineering: Warren Pratt Howe K Truss The following figures are shown under a load. The numbers represent percentage, where the total load = 100. The numbers are rounded to the nearest 5. For absolute numbers, visit the Bridge Designer. Red represents tension, blue represents compression, and green is no load. On [...]

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